Game changing instruments for your digital signals on Swabian Instruments

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Mon, 01 Jan 0001 00:00:00 +0000

Recommended SMA Cables for Time Taggers

Thu, 12 Dec 2024 00:00:00 +0000

SMA cables are the cable of choice when connecting a Time Tagger with a device.

As a reference, to test our devices internally, we mainly use two types of cables. One type for standard usage (see under this link), and one used to achieve better signal-to-noise ratios (see under this link).

More specifically, there are many parameters to consider when selecting an SMA cable:

Length. Ideally, the Time Tagger has to be placed close to the experimental setup, and USB extenders should be used to cover longer distances. When this solution is not possible, we would suggest keeping the length of the SMA cable below five meters. Our devices can work with longer cables, but the signal can degrade, affecting the overall jitter.

Optimal PC Requirements for Time Tagger

Wed, 31 Jul 2024 00:00:00 +0000

Time Tagger is supported on Windows (10 or higher) and several Linux distributions. Please find more information under this link. Our high-performance GUI Time Tagger Lab is available for Windows only. For Linux users, the Web Application is still available, but it is deprecated and not maintained anymore. The Time Tagger is not supported on macOS. If you need to use the Time Tagger with macOS, you can have a look at this article for possible solutions.

应用文档

Mon, 01 Jan 0001 00:00:00 +0000

Suitable Pulse Shapes for Time Tagger Measurements

Thu, 12 Dec 2024 00:00:00 +0000

The Time Tagger detects electrical signals that rise or fall across a user-defined trigger level. Such events are acquired with a resolution of 1 ps and a specific time jitter for each model. This is independent of the input signal’s shape (square, triangle, sine, or any arbitrary shape), as long as the signal’s slew rate is sufficiently high to be detected by the Time Tagger within the specified timing accuracy.

Connecting Time Tagger via USB Port

Fri, 16 Aug 2024 00:00:00 +0000

Time Tagger Ultra and Time Tagger X support USB3 connection. Always connect them to a USB3 port on your PC using a high-quality USB3 cable, preferably the one provided with the product. This helps prevent connection issues between the Time Tagger and the PC. A misconfigured connection may cause a failure, with an error message stating: “device is plugged to USB2, it will be slow, but when the device is plugged into a USB 3.0 port."

精选文献

Mon, 01 Jan 0001 00:00:00 +0000

Detecting Negative Signals with Time Tagger 20

Thu, 12 Dec 2024 00:00:00 +0000

The Time Tagger 20 can accept only positive signals and requires a pulse inverter to be used with negative polarity signals. A pulse inverter is usually a simple passive component that inverts pulse polarity. Passive inverters use a type of transformer, transfer only alternating signals, and work in a specific frequency range. They may perform poorly when used outside their design frequency range, leading to signal distortion and incomplete inversion.

Downloading the Time Tagger Software

Wed, 31 Jul 2024 00:00:00 +0000

The Time Tagger software can be downloaded at this link.

If needed, older versions can be found in our archive at this link.

A revision history of all our releases can be found at this link.

If you need the software for our Pulse Streamer 8/2, it can be downloaded at this link.

开源项目

Mon, 01 Jan 0001 00:00:00 +0000

Setting the Appropriate Trigger Level

Thu, 12 Dec 2024 00:00:00 +0000

Choosing the appropriate trigger level depends on the characteristics of your signal. Our general recommendation is to set the trigger level to half of the signal’s maximum amplitude, as this typically corresponds to the steepest part of the signal.

Additionally, whenever possible, select the sharpest edge of the signal, either the rising edge (positive channel number) or the falling edge (negative channel number). A steep signal edge results in better time definition and is less sensitive to noise compared to slower transitions, which are affected by noise for a longer duration.

Resolving License Acquisition Errors

Fri, 16 Aug 2024 00:00:00 +0000

There are multiple scenarios in which the license is not automatically acquired, as described in the installation section of our documentation .

Sometimes, the request for a free license fails, and the software tries to acquire it again. This failure can be due to the absence of a stable Internet connection or a firewall blocking the license request. Usually, you will notice failed license requests when error messages appear, as shown below:

Maximum Input Voltage Amplitude

Thu, 12 Dec 2024 00:00:00 +0000

For each model, we specify an input signal range:

Time Tagger 20: 0 to 3 V
Time Tagger Ultra: -3 to 3 V
Time Tagger X: -1.5 to 1.5 V

Amplitudes slightly beyond the limits can still be applied without causing damage, but specified performances are not guaranteed. Please have a look at our brochure.

If your signal has an amplitude outside the accepted range, we recommend using SMA attenuators.

Fixing Python ModuleNotFound Error for Time Tagger

Fri, 16 Aug 2024 00:00:00 +0000

Normally, the installation procedure should automatically add the installation path to your Python path. If the variable “PYTHONPATH” is missing or it does not contain TimeTagger installation path, python is not able to find the Time Tagger library and import the packages.

The error typically appears as:


Traceback (most recent call last):
 File "", line 10, in 
 import TimeTagger
ModuleNotFoundError: No module named 'TimeTagger'

The Time Tagger Python module is installed in it’s own folder along with other required compiled libraries. By default, it is located in: ‘C:\Program Files\Swabian Instruments\Time Tagger\driver\python\

Minimum Pulse Amplitude and Duration Requirements

Thu, 12 Dec 2024 00:00:00 +0000

For all Time Tagger models, we specify a minimum input signal amplitude of 100 mV. The minimum pulse duration requirements are as follows:

Time Tagger X: 350 ps
Time Tagger Ultra: 500 ps
Time Tagger 20: 1 ns

While these values provide a useful baseline, it is important to consider a few additional factors, as reducing specifications to single numbers does not tell the full story:

When the trigger level is properly selected and the system is correctly set up, these specifications guarantee a 100% count rate and a time jitter below the specified value for each model.
Shorter or smaller pulses can still be detected, but this may result in:
- A count rate below 100% (missed events).
- Time jitter exceeding the specified values.
These specifications for amplitude and duration are interdependent:
- Shorter pulses might still work if their amplitude is higher than 100 mV, while meeting jitter specifications and avoiding missed events.
- Conversely, longer pulses with an amplitude slightly below 100 mV may also function correctly.

By carefully tuning your setup, you can optimize the performance of your Time Tagger, even when operating near the specified limits.

Using Time Tagger on macOS

Wed, 31 Jul 2024 00:00:00 +0000

Time Tagger is supported on Windows and Linux, but not on macOS.

A workaround might be to run Windows OS on a virtual machine on macOS system and expose the USB port with the Time Tagger to the VM.

Another option to control the Time Tagger with Mac OS (and in Python) would be with TimeTaggerRPC. However, it requires a Windows or Linux machine that is connected to the Time Tagger via USB.

Compensating for Channel Delays

Thu, 12 Dec 2024 00:00:00 +0000

The overall delay between channels results from delays accumulated at different stages.

We refer to the external delay as the delay accumulated before the signals are fed into the TimeTagger. This delay between the signals arises from experimental conditions, such as different optical paths/different cables length/inherent delays in the detectors. Next, there is the hardware or internal delay due to the different paths of the different channels through the FPGA, where the time to digital conversion occurs. In principle we should distinguish between input time stamps and TDC time stamps, because of the different hardware delays accumulated between the propagating signals at the hardware level. Nevertheless, the Time Tagger is calibrated to compensate for this delay, and no distinction is needed.

Connecting Time Tagger to an external FPGA

Fri, 16 Aug 2024 00:00:00 +0000

While Time Tagger 20 and Time Tagger Ultra exclusively have a USB interface, Time Tagger X also features a QSFP+ interface, which allows users to output signals to a secondary FPGA at a high data rate (up to 1.2 GTags/s) and low latency. The latter refers to the time required to transfer the time tags through the QSFP+ interface and make them available in the second FPGA. As an Ethernet protocol is used, the latency for receiving the time tags in the second FPGA is approximately 10 µs.

Fixing Numpy 2.0.0 Import Error in Time Tagger

Fri, 16 Aug 2024 00:00:00 +0000

The Time Tagger software supports Numpy version >= 2.0.0 beginning from release 2.17.4.

If you are using an older version of Time Tagger (<= 2.17.2) with an updated Numpy version (>= 2.0.0), you will encounter an exception related to the import of numpy.core.multiarray:


Traceback (most recent call last):
 File "C:\Program Files\Swabian Instruments\Time Tagger\driver\python\TimeTagger.py", line 15, in <module>
 import _TimeTagger
ModuleNotFoundError: No module named '_TimeTagger'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
 File "dls\__main__.py", line 5, in <module>
 File "PyInstaller\loader\pyimod02_importers.py", line 385, in exec_module
 File "dls\__init__.py", line 39, in <module>
 File "C:\Program Files\Swabian Instruments\Time Tagger\driver\python\TimeTagger.py", line 36, in <module>
 import _TimeTagger
ImportError: numpy.core.multiarray failed to import

The best way to resolve this issue is to update our software to the latest release, which can be downloaded here. If updating the software is not feasible at the moment, you may need to downgrade Numpy to a suitable version 1.x.

Detecting Falling Edges of Pulses

Thu, 12 Dec 2024 00:00:00 +0000

On the software level, the rising and falling edges are independent channels. In the Graphical User Interfaces, Time Tagger Lab, the rising and falling edges are marked explicitly with a pictogram. In the software libraries, the number of a falling edge channel is a negative number of the physical input. For example, the rising and falling edges of the physical input 2 correspond to the software channels 2 and -2, respectively. You can also use the method getInvertedChannel() to find the inverted channel number for your specific hardware revision.

Importing Time Tagger in Spyder IDE

Fri, 16 Aug 2024 00:00:00 +0000

When attempting to import the Time Tagger module in Spyder IDE, users may encounter the following error:


: ImportError: DLL load failed [...]

This issue occurs because Spyder does not use the standard Windows PYTHONPATH. Instead, it has its own PYTHONPATH manager. As a result, you need to manually add the path to the TimeTagger Python module in Spyder.

Fluorescence Lifetime Flow Cytometry (FLFC)

Wed, 25 Feb 2026 00:00:00 +0000

Introduction

Introduction to Fluorescence Lifetime Flow Cytometry

Flow cytometry is a sheath-flow-based technique that uses laser excitation and fluorescence to evaluate the physical and chemical characteristics of cells or other suspended particles in a fluid stream ¹. As these particles pass through the laser beam, the scattered light and fluorescence from labeled antibodies or markers can be used to obtain information on size, granularity, and molecular expression at the single-cell level, at rates exceeding tens of thousands of cells per second ². Flow cytometry is widely used across biomedical research and clinical diagnostics, including oncology, immunology, stem cell studies, microbiology, and synthetic biology. It offers high-throughput quantitative analysis of heterogeneous cell populations, which is crucial in a variety of applications such as cancer phenotyping, vaccine development, and rapid diagnosis of blood cancers or infectious diseases ³ ⁴.

卫星激光测距（SLR）与激光雷达（LiDAR）：高精度遥感解决方案

Wed, 10 Sep 2025 00:00:00 +0000

Next-generation multi-angle DLS turnkey design with built-in consistency checks, raw photon access, and intelligent spike filtering for fast, reliable particle sizing.

Dynamic Light Scattering (DLS) Particle Size Analysis

Mon, 08 Sep 2025 00:00:00 +0000

Next-generation multi-angle DLS turnkey design with built-in consistency checks, raw photon access, and intelligent spike filtering for fast, reliable particle sizing.

强度干涉测量法

Fri, 18 Jul 2025 00:00:00 +0000

This page details the principles and advantages of intensity interferometry, a powerful technique in optical astronomy used to measure stellar diameters and spatial structure through photon correlation. Swabian Instruments’ Time Taggers enable high-precision, scalable, and synchronized intensity interferometry experiments with picosecond timing resolution, real-time data processing, and long-baseline support.

光探测磁共振 (ODMR)

Fri, 28 Feb 2025 00:00:00 +0000

Optically detected magnetic resonance (ODMR) is a powerful technique widely used in quantum sensing, magnetic field measurement, and material analysis.

Single-Photon Counting Raman Spectroscopy

Thu, 27 Feb 2025 00:00:00 +0000

光子数分辨 (PNR)

Fri, 23 Feb 2024 00:00:00 +0000

Photon number resolution (PNR) is an enabling technique used to assign the number of photons involved in a detection event precisely.

Fluorescence Lifetime Imaging (FLIM)

Tue, 01 Jan 2019 00:00:00 +0000

单光子显微镜

Tue, 01 Jan 2019 00:00:00 +0000

线性光学量子信息 (LOQI)

Tue, 25 Mar 2025 00:00:00 +0000

Explore Linear Optics Quantum Information (LOQI) and its applications in quantum computing and secure communication. Learn about Swabian Instruments’ Time Taggers and their role in precise photon detection, timing, and analysis for advanced quantum experiments.

Time-Resolved Photoluminescence (TRPL)

Wed, 15 Oct 2025 00:00:00 +0000

Introduction

Introduction to Time-Resolved Photoluminescence (TRPL)

Time-resolved photoluminescence (TRPL) is a powerful technique that measures the photoluminescence decay (emission lifetime) of materials after pulsed excitation, thereby probing their optical and electronic properties. By tracking how excited states relax back to the ground state, TRPL distinguishes between radiative and non-radiative pathways, yielding lifetimes that report on charge-carrier dynamics, trap/defect activity, and other loss mechanisms. Compared with steady-state photoluminescence (PL), which focuses on spectral intensity, TRPL resolves the temporal decay of the luminescence signal, enabling quantitative extraction of recombination rates, multi-exponential or distributed lifetimes, and diffusion- or transfer-limited behavior. These parameters are broadly useful for screening and optimizing photonic materials, such as semiconductors, perovskites, polymers, and quantum-emitter platforms, and for interpreting contrast in bioimaging and other applications.

光子集成电路 (PIC)

Sat, 11 Oct 2025 00:00:00 +0000

引言

什么是光子集成电路（Photonic Integrated Circuits, PIC）与时间标记电子学？

光子集成电路（PICs）是一种芯片级器件，在单一衬底上或同一封装内集成或共封装激光源、调制器、波导、探测器等光学组件。该器件为高速光通信、量子光子技术及生物传感应用提供了可扩展的小型化平台，适用于硅光子学（Si）、氮化硅（SiN）及磷化铟（InP）等多种平台。

在更广泛的应用场景中，光子集成电路正逐渐成为短距离数据中心、片间互连、电信网络、量子通信及传感领域的核心组分。相较于体光学器件，PICs在尺寸、稳定性、成本及可重复性方面具备显著优势，可支持晶圆级大批量制造。

PICs直接解决了当前电子系统的关键局限，能提升数据吞吐量，实现T bit/s的链路传输，且具备低延迟、高带宽的互连特性，性能优于铜基互连技术 ¹。例如，在激光雷达（LiDAR）领域，PICs可实现固态光学相控阵，支持片上光束操控，在适配架构中省去了运动组件，同时减小了器件体积，并降低了成本 ²。

从早期的集成光学实验到现代硅光子学技术，PICs 已历经数十年发展，取得了阵列波导光栅、密集波分复用等里程碑式成果 ³。近期，光子集成电路的应用已超越电信领域，拓展至人工智能加速器共封装光学及片间链路等场景 ⁴。

封装与测试是PICs研发与制造的关键环节。光纤阵列、光斑尺寸转换器（倒锥/模式转换器）及微光学器件的技术进步，降低了插入损耗并放宽了对准公差。反馈控制对准技术加速了第一信号的获取，稳定了从晶圆探针到最终封装的耦合性能。在量子光子学及超快应用中，精准、低抖动的计时至关重要。核心测量内容包括时间相关单光子计数（TCSPC）、寿命测量、多光子符合测量、g(2)关联分析、片上HOM干涉测试，以及高速调制器与接收器的延迟/抖动表征。这些需求凸显了下文将讨论的时间标记电子设备的核心作用。

实验需求

PICs所需时序电子设备

图1展示了典型的PIC测试平台。该平台将片上或共封装探测器（如单光子雪崩二极管 SPADs、超导纳米线单光子探测器 SNSPDs 或高速光电二极管）的电输出路由至多通道时间数字转换器（TDC）。同时，平台还需要采集激光触发信号、时钟参考信号、扫描或步进信号等外部标记。使用内部共享时钟可保障多通道计时同步，数字 I/O 线协调调制器驱动波形、探测器门控、光开关触发及探针卡继电器，确保数据采集与设备控制保持对齐。在此基础上，时序电子设备支持多种关键测量类型：提供时间相关单光子计数与符合分析，用于寿命测量、g(2)关联分析、HOM干涉测试及其它片上测试；实现高速调制器与接收器的延迟和抖动表征；支持MZ干涉仪、阵列波导光栅、量子门等干涉型或相位参考型电路的多通道同步。为保证器件级测量保真度，需具备皮秒级时间戳记录能力，且需满足附加抖动低、线性度与热稳定性经校准、通道间偏移已知等要求，同时需支持连续无丢失数据流传输，以实现实时直方图绘制、符合事件分析与数据记录。具备上述特性后，能够可靠地关联多条光路的事件，并在不同扫描参数、温度或偏置点下进行对比。该同步工作流程可广泛适用于多领域，例如晶圆首光探测、高通量封装级测试等。

PIC测试对时序电子设备的精度、可扩展性与灵活性均有要求。实际应用中面临多项挑战，每项挑战均对应可靠高效测量所需的具体性能指标：

皮秒级分辨率与低抖动： 光子到达时间测量、干涉相位稳定性测试、延迟/抖动表征等诸多 PIC 测量场景均要求低于10 ps的分辨率，抖动过大或精度不足会严重影响测量结果。
可扩展的等效通道： 实验常涉及多个探测器或多条光路。具有固定架构的通道配置，例如固定的“start–stop”通道，其中某些输入是永久分配的，无法跟上不断发展的PIC设计。因此，需配备8至32个及以上全等效、可独立触发的通道，以支持灵活的同步测量。
高通量低延迟数据处理： 传统系统常存在光子传输延迟问题，导致光子到达信号与触发信号丢失或错位，高效低延迟数据流传输可确保探测器与通道间的准确无丢失关联。
最小化探测开销： 晶圆级或高密度测试中，手动重新连接会延长研发周期并引入误差。设备需兼容光纤阵列、光开关与自动路由系统，以支持高通量工作流程。
实时数据处理： 仅支持离线分析会减慢实验反馈速度，增加迭代测试复杂度。实时计算直方图、符合事件与相关性数据，可在采集过程中实现更快的参数优化与更深入的结果分析。
通道间精准同步： 涉及多路径干涉或量子电路的PIC实验要求所有输入输出端口的计时严格对齐，稳定的通道间偏移与可扩展的同步能力，是实现可靠、相位稳定测量的基础。

解决方案

Swabian Instruments - 施瓦本仪器的Time Tagger提供精确测量PIC的先进方案

Swabian Instruments - 施瓦本仪器的Time Tagger具备PIC测试与量子光子学研究所需的精度、可扩展性及灵活性。其皮秒级精度、可扩展通道与实时数据处理能力的结合，在PIC 研发与表征中展现出无与伦比的性能与灵活性。

在SIRIUS 5等自动化测试平台中 ⁵，Time Tagger 模块可通过光纤基触发信号或光子探测模块无缝集成，用于实时评估光子到达时间与损耗通道。这种多功能性使其成为PIC领域科研与生产流程的强大工具。

可扩展性：

所有输入通道均为全等效设计且可独立触发，摒弃了通道配置中的固定架构限制。单台设备支持最多20个通道，且最多8台设备可同步工作，能满足多探测器、复杂光路的实验需求。

支持自动化高通量工作流程：

Time Tagger 可与光纤阵列、光开关及探针卡继电器无缝集成，减少手动重新配置操作，支持快速可靠的晶圆级或封装器件测试。

实时处理能力：

采集过程中可实时计算直方图、相关性分析、符合分析等多项测量结果。内置 APIs 支持通过数行代码实现实时多维分析，提供即时反馈，加速实验迭代。

时间精度：

抖动性能低至1.5 ps，具备皮秒级时间分辨率，可确保光子到达时间、相位稳定性、器件延迟及干涉测量的准确性。

高通量低延迟数据流：

基于现场可编程门阵列（FPGA）的链路可实现连续无丢失数据传输，且延迟极低，确保光子到达信号、触发信号与耦合信号保持对齐，无数据丢失。

Brillouin Light Scattering (BLS)

Fri, 19 Dec 2025 00:00:00 +0000

Brillouin Light Scattering (BLS) is a powerful optical spectroscopy technique used to probe phonons, magnons, and viscoelastic properties of materials across solid-state, biological, and sensing applications. Swabian Instruments Time Taggers play a critical role in modern BLS experiments by enabling picosecond-resolution photon time-stamping, reliable synchronization with interferometric setups, and real-time reconstruction of frequency-resolved spectra. By combining Time Taggers with Fabry–Pérot interferometry and single-photon detection, researchers achieve accurate, scalable, and time-resolved BLS measurements for materials science, spintronics, biomedical research, and remote sensing.

Quantum Dot Single-Photon Source Characterization Using High-Precision Timing Electronics | Swabian Instruments Time Tagger & Pulse Streamer

Tue, 18 Nov 2025 00:00:00 +0000

Swabian Instruments’ Time Tagger and Pulse Streamer provide picosecond-level timing resolution, fast digital pulse generation, and high data-throughput capabilities used in the characterization of quantum-dot single-photon sources.

Frequency Stability Analysis

Tue, 25 Mar 2025 00:00:00 +0000

Role of timing electronics in Frequency Stability Analysis

Materials Research Society (MRS) Fall 2026

Fri, 04 Dec 2026 00:00:00 +0000

World Quantum Cannes Festival 2026

Wed, 18 Nov 2026 00:00:00 +0000

ITSF 2026

Thu, 05 Nov 2026 00:00:00 +0000

ECIS 2026

Fri, 11 Sep 2026 00:00:00 +0000

Single Photon Workshop (SPW)

Fri, 10 Jul 2026 00:00:00 +0000

Quantum Tech World 2026

Fri, 26 Jun 2026 00:00:00 +0000

Inside Quantum Technology (IQT Nordics)

Wed, 24 Jun 2026 00:00:00 +0000

Optica Quantum 2.0

Thu, 18 Jun 2026 00:00:00 +0000

APS Division of Atomic, Molecular, and Optical Physics Meeting 2026

Fri, 05 Jun 2026 00:00:00 +0000

IEEE International MTT Symposia (IMS) 2026

Fri, 05 Jun 2026 00:00:00 +0000

Conference on Lasers and Electro-Optics (CLEO)

Thu, 21 May 2026 00:00:00 +0000

Workshop on Synchronization and Timing Systems (WSTS)

Thu, 07 May 2026 00:00:00 +0000

Materials Research Society (MRS) Spring 2026

Fri, 01 May 2026 00:00:00 +0000

Workshop for Quantum Repeaters and Network

Wed, 29 Apr 2026 00:00:00 +0000

SPIE Photonics Europe 2026

Thu, 16 Apr 2026 00:00:00 +0000

Focus on Microscopy (FOM)

Wed, 01 Apr 2026 00:00:00 +0000

Multi-Component Soft Materials

Fri, 27 Mar 2026 00:00:00 +0000

American Chemical Society (ACS) Spring 2026

Thu, 26 Mar 2026 00:00:00 +0000

The APS Global Physics Summit 2026

Fri, 20 Mar 2026 00:00:00 +0000

6th International Conference on Fluorescent Biomolecules and their Building Blocks

Wed, 11 Mar 2026 00:00:00 +0000

DPG Spring (SAMOP) 2026

Fri, 06 Mar 2026 00:00:00 +0000

Dynamic Light Scattering and Precise Timing at Photonic West 2026

Thu, 19 Feb 2026 00:00:00 +0000

At Photonics West 2026, the Swabian Instruments team showcased precise timing solutions for particle size analysis, including multi-angle Dynamic Light Scattering for materials science and the Time Tagger Series for photonics and optical research.

Scaling Quantum Measurements: High Channel Quantum Opus SNSPDs and Swabian Instruments’ Time Taggers

Tue, 17 Feb 2026 00:00:00 +0000

Scaling quantum optics experiments requires timing electronics that keep pace with modern detector arrays. Quantum Opus high-channel SNSPD systems combined with Swabian Instruments Time Tagger X enable scalable single-photon timing, real-time correlation, and high-throughput measurements without sacrificing precision.

Swabian Instruments at PTTI 2026: Expanding into Precision Timing and Time Interval Measurements

Tue, 17 Feb 2026 00:00:00 +0000

At PTTI 2026, Swabian Instruments explored precision timing and frequency metrology applications, showcasing how Time Taggers enable 1PPS monitoring, optical clock comparison, GNSS validation, White Rabbit synchronization, and multi-channel time interval analysis.

Makro Colloquium

Fri, 13 Feb 2026 00:00:00 +0000

SPIE Photonics West 2026

Thu, 22 Jan 2026 00:00:00 +0000

From Idea to Entanglement: How a Time Tagger Supported a Journey in Quantum Electron Microscopy

Fri, 16 Jan 2026 00:00:00 +0000

Researchers at the Vienna University of Technology describe how they measured electron–photon correlations, demonstrated entanglement, and developed early quantum imaging methods using Swabian Instruments’ Time Taggers.

Swabian Instruments’ Commitment to Customer Success

Thu, 08 Jan 2026 00:00:00 +0000

Swabian Instruments delivers fast, expert-level support led by application scientists specializing in photonics, quantum optics, timing & frequency, life sciences, and software development. With an average first-response time of four hours, users receive reliable guidance, complemented by extensive documentation, Python examples, and a comprehensive FAQ, to troubleshoot and optimize experimental setups.

From Time-Domain Diffuse Correlation Spectroscopy to Pathlength-Selective Diffuse Correlation Spectroscopy - Martinos Center at Massachusetts General Hospital

Thu, 18 Dec 2025 00:00:00 +0000

The Martinos Center at Massachusetts General Hospital use pathlength-selective, interferometric Diffuse Correlation Spectroscopy (PaLS-iDCS) to measure blood flow in the brain, however they began exploring this method after using Time-Domain Diffuse Correlation Spectroscopy (TD-DCS), supported by a Swabian Instruments Time Tagger.

Enhancing Photon Correlation Measurements at CNRS with Swabian Instruments Time Taggers

Wed, 17 Dec 2025 00:00:00 +0000

Researchers at the University of Côte d’Azur, working on intensity interferometry and advanced photon-correlation measurements, using the Swabian Instruments Time Tagger to build a flexible setup for high-precision timing in astronomical experiments.

Time Tagger Software Release v 2.20 - Major Updates to Time Tagger Lab, Network Workflows, and Measurement Tools

Fri, 12 Dec 2025 00:00:00 +0000

Swabian Instruments’ latest Software Release, V 2.20, features expanded capabilities both using the TimeTagger Lab and API. This release features improved functionality, new processors and measurements, and enhanced workflows.

MRS Fall Meeting & Exhibit 2025

Thu, 04 Dec 2025 00:00:00 +0000

1 PPS Monitoring, Frequency Stability Analysis, and Phase Noise Analysis Demonstrations at the International Timing and Sync Forum (ITSF) 2025

Wed, 03 Dec 2025 00:00:00 +0000

At the International Timing and Sync Forum (ITSF) 2025 in Prague, Swabian Instruments demonstrated how Time Taggers can be synchronized and analyzed across multiple locations for real-time correlated measurements as well as phase and frequency analyses. The team had insightful discussions with researchers and operators working to solve timing challenges in labs, data centers, and networks in the field.

EQTC 2025: European Quantum Technologies Conference in Copenhagen

Tue, 02 Dec 2025 00:00:00 +0000

Our team from Swabian Instruments attended EQTC 2025 in Copenhagen as exhibitors, showcasing our pico-second synchronisation setup with White Rabbit technology, connecting with new and existing customers, and participating in an outstanding mix of science, industry, and policy discussions.

European Quantum Technologies Conference - EQTC 2025

Mon, 10 Nov 2025 00:00:00 +0000

IEEE Photonics Conference - IPC 2025

Sun, 09 Nov 2025 00:00:00 +0000

Resolving Re-excitation in Quantum Dot Experiments with Swabian Instruments’ Time Tagger

Fri, 07 Nov 2025 00:00:00 +0000

Lennart Jehle, a PhD researcher in Prof. Philip Walther’s group at the University of Vienna, works on experiments in quantum optics and photonics. The Walther Group focuses on controlling single photons for applications in quantum computing and quantum communication.

Frontiers in Optics and Laser Science 2025: Swabian Instruments in Denver, Colorado

Thu, 06 Nov 2025 00:00:00 +0000

Swabian Instruments attended the Frontiers in Optics and Laser Science (FIOLS) event in Denver, Colorado the last week of October 2025. The event included a lot of insightful presentations, including the one from Dr. Matteo Moioli on room temperature PNR.

International Timing and Sync Forum - ITSF 2025

Mon, 27 Oct 2025 00:00:00 +0000

Multichannel Continuous Histogramming: Advancing Fluorescence Lifetime Flow Cytometry with Melissa Skala’s Team and Swabian Instruments

Tue, 07 Oct 2025 00:00:00 +0000

Discover Swabian Instruments Time Tagger’s capability for multi-channel continuous histogramming, which has resulted in further advancements in the cutting-edge work of Prof. Melissa Skala’s group at the Morgridge Institute for Research and the University of Wisconsin-Madison.

ISS X Swabian Instruments

Mon, 06 Oct 2025 00:00:00 +0000

We’re excited to collaborate with ISS, a leader in developing fluorescence and biomedical instrumentation, to bring our Time Tagger 20 and Time Tagger Ultra into their advanced spectroscopy and microscopy systems. This integration enhances fluorescence lifetime imaging microscopy (FLIM) and related applications with unmatched precision, capturing time-resolved fluorescence events across a broad dynamic range.

Frontiers in Optics and Laser Science 2025

Mon, 29 Sep 2025 00:00:00 +0000

DPG Fall Meeting 2025: 100 Years of Quantum Physics Science, Communication, and Collaboration

Fri, 26 Sep 2025 00:00:00 +0000

DPG Fall (German Physical Society) Meeting 2025 was an opportunity for Swabian Instruments to share real-world use cases of our products in a talk, demonstrate them in action, and see how our instruments are already part of ongoing research presented by students and leading groups.

Swabian Summer School 2025

Fri, 26 Sep 2025 00:00:00 +0000

Introduction

After the amazing success of the Swabian Summer School 2024, we are excited to announce the Swabian Summer School 2025!

To celebrate the International Year of Quantum Science and Technology (IYQ), this year’s edition will focus on quantum computing and quantum key distribution applications of our instruments. The program will include expert-led morning lectures, hands-on experimental sessions in the afternoon, and engaging social events designed to spark interaction and networking. Participants will have the opportunity to share their own research, connect with peers, and engage in open discussions with the entire Swabian Instruments community, promoting collaboration and the exchange of fresh ideas.

Year of Quantum: Swabian Instruments in New Mexico for IEEE Quantum Week 2025

Fri, 19 Sep 2025 00:00:00 +0000

Swabian Instruments joined Single Quantum and Qunnect at IEEE Quantum Week 2025 (QCE25) in Albuquerque, showcasing how precise time-tagging supports scalable quantum networking, sensing, and communications.

University of Münster Researcher Adrian Abazi Advances Time-of-Flight LiDAR Resolution Using Swabian Instruments’ Time Tagger

Wed, 10 Sep 2025 00:00:00 +0000

Discover how Swabian Instruments’ Time Tagger X facilitates high-resolution time-of-flight light detection and ranging (ToF LiDAR) research at the University of Münster.

DPG Fall 2025

Mon, 08 Sep 2025 00:00:00 +0000

Midwest Quantum Collaboratory (MQC) - 2025 Quantum Entanglement Workshop Highlights

Fri, 05 Sep 2025 00:00:00 +0000

Swabian Instruments took part in MQC Entanglement 2025 in Ann Arbor, where we shared recent results on TCSPC with SNSPDs, photon-number resolution at telecom wavelengths, remote synchronization for quantum networks, and high-resolution FLIM. It was a great chance to connect with the Midwest quantum community and exchange ideas on timing, detection, and quantum technology.

IEEE Quantum Week

Sun, 31 Aug 2025 00:00:00 +0000

〈Q|School Single Photonics Short Course

Fri, 29 Aug 2025 00:00:00 +0000

The <Q| School Single Photonics Short Course, presented by CU Boulder and NIST, brought together students, researchers, and industry partners to explore the fundamentals and applications of single photonics. Through lectures and hands-on labs, participants engaged with detectors, sources, and measurement techniques, including live demonstrations featuring Swabian Instruments’ Time Taggers. This unique program fostered collaboration across academia and industry, deepening understanding of quantum technologies and future applications.

Laser World of Photonics & World of Quantum 2025 – Synchronization, QKD, and Time and Frequency

Tue, 26 Aug 2025 00:00:00 +0000

In June, Swabian Instruments joined Laser World of Photonics and World of Quantum 2025 in Munich, where we unveiled our new partnership with ID Quantique. Together, we showcased photon number resolution (PNR) with IDQ’s p-SNSPDs and our Time Taggers, alongside live demos of fluorescence lifetime, remote synchronization with White Rabbit, and reaction-time testing.

EPF 2025 Highlights

Tue, 29 Jul 2025 00:00:00 +0000

In June, the Swabian Instruments team attended the EPF European Polymer Congress in Groningen, Netherlands. At the conference, we demonstrated our newest device for advanced dynamic light scattering, the DLScat.

EPF 2025

Sat, 28 Jun 2025 00:00:00 +0000

Laser World of Photonics World of Quantum 2025

Tue, 24 Jun 2025 00:00:00 +0000

MQC Entanglement

Sat, 21 Jun 2025 00:00:00 +0000

Time Tagger Series - v2.18 Software Release!

Mon, 16 Jun 2025 00:00:00 +0000

Swabian Instruments is excited to share the new Time Tagger Software v 2.18. This update brings powerful new tools, better performance, and easier ways to collect and understand your data. It’s designed to help scientists working in fields like quantum optics, life sciences, and time-resolved measurements.

CLEO 2025

Thu, 05 Jun 2025 00:00:00 +0000

In early May our team attended CLEO (Conference on Lasers and Electro-Optics) 2025 in Long Beach, California. CLEO created a dynamic setting to introduce our latest solutions, share insights, and engage with laser technology groups as well as the ultrafast & quantum optics community.

IEEE IFCS-EFTF 2025

Wed, 04 Jun 2025 00:00:00 +0000

May was the month of conferences, and after a successful CLEO, our team had the pleasure of attending the joint conference of the IEEE International Frequency Control Symposium and the European Frequency and Timing Forum. The event was hosted in Querétaro, Mexico, and served as a meeting point for research and industry experts to share their research and contributions to the field of timing technologies.

OFC 2025: Learning from the Experts in Optical Networking and Synchronization

Tue, 03 Jun 2025 00:00:00 +0000

March 2025 marked Swabian Instruments’ first time attending the Optical Fiber Communication (OFC) Conference, held in San Francisco at the beginning of this month.

IEEE IFCS-EFTF

Mon, 12 May 2025 00:00:00 +0000

CLEO 2025

Sun, 04 May 2025 00:00:00 +0000

BQIT 2025

Mon, 28 Apr 2025 00:00:00 +0000

Accelerating Quantum Readout with Swabian Instruments Time Taggers - Lukin Group at Harvard

Mon, 31 Mar 2025 00:00:00 +0000

Boosting photon count rates and streamlining quantum state readout! Learn how Swabian Instruments Time Tagger technology is enhancing quantum computing and networking research in the team led by Prof. Mikhail Lukin in Harvard.

Applications for the Swabian Summer School 2025 will open soon!

Tue, 25 Mar 2025 00:00:00 +0000

This 3-day workshop is designed to bring together students, PhDs, and young post-docs for an intensive program on measurement techniques in quantum optics using our Time Taggers with picosecond precision. To celebrate the International Year of Quantum Science and Technology (IYQ), this year’s edition will focus on applications of our instruments in quantum computing and quantum key distribution. Don’t miss the application!

OFC 2025

Mon, 17 Mar 2025 00:00:00 +0000

Photonics West 2025: Innovation, Collaboration, and Exciting Updates

Fri, 21 Feb 2025 00:00:00 +0000

In January, the Swabian Instruments team had the incredible opportunity to attend BIOS and Photonics West 2025 in San Francisco—the premier photonics and optics conference in North America. The event brought together leading innovators, researchers, and industry experts in the fields of life sciences, quantum optics, biomedical technology, and biophotonics.

London’s National Physical Laboratory (NPL) Extends Quantum Tomography with Swabian Instruments’ Time Taggers

Mon, 10 Feb 2025 00:00:00 +0000

How Swabian Instruments’ Time Tagger Technology is Advancing Quantum Tomography in the National Physical Laboratory (NPL) in London, UK.

Photonics West 2025

Mon, 27 Jan 2025 00:00:00 +0000

Simplifying Photon Detection and Analysis with Time Taggers

Wed, 22 Jan 2025 00:00:00 +0000

Photon detection distinguishability is increasing interest in advancements in photonics and quantum technology. At Swabian Instruments, we are proud to lead this innovation with our Time Taggers, as detailed in our latest abstract presented at the Optica Latin America Optics and Photonics Conference, which took place in Puerto Vallarta, Mexico, in November 2024.

Continuous Streaming with Firmware v2.0.0 Beta2 for Pulse Streamer 8/2

Thu, 02 Jan 2025 00:00:00 +0000

At Swabian Instruments, innovation never stops. We’re excited to share the preliminary release of firmware v2.0.0 Beta2 for the Pulse Streamer 8/2, setting the stage for a new feature — continuous streaming.

New Application Note: Optically Detected Magnetic Resonance: Quantum Spin Probe of Single Charge Dynamics

Mon, 30 Dec 2024 00:00:00 +0000

At Swabian Instruments, we’re excited to announce a new application note in collaboration with the Awschalom Group at the University of Chicago - “Optically Detected Magnetic Resonance Quantum Spin Probe of Single Charge Dynamics.” This collaborative work showcases the power of advanced quantum measurement techniques using our Pulse Streamer 8/2 and Time Tagger 20.

EQEP 2024

Thu, 28 Nov 2024 00:00:00 +0000

Single Photon Workshop 2024

Mon, 18 Nov 2024 00:00:00 +0000

ITSF 2024

Thu, 07 Nov 2024 00:00:00 +0000

首届 Swabian Summer School 圆满落幕

Mon, 21 Oct 2024 00:00:00 +0000

首届 Swabian Summer School 近日在德国总部顺利收官。在为期四天的活动中，Swabian Instruments 在斯图加特的办公室成为了创新与交流的中心，不同学科的交叉在这里迸出火花。参加首届 Swabian Summer School 的学员们深入探索 Swabian Instruments 领先的信号时域测量技术，并学习这些技术在光子科学、量子测量及生命科学等前沿领域的应用。

Swabian Instruments参与构建德国首台光量子计算机

Tue, 15 Oct 2024 00:00:00 +0000

德国首台量子计算机日前在帕德博恩大学 (Universität Paderborn) 亮相！这台名为帕德博恩量子采样机（PaQS）的原型机是一台完全可编程的光量子计算机，标志着欧洲量子领域的一项重要成就。

以 Time Tagger 为核心的量子学习新时代 Thorlabs x Swabian Instruments

Mon, 14 Oct 2024 00:00:00 +0000

Swabian Instruments 开发生产的Time Tagger是Thorlabs精心打造的量子光学教学套件的核心部件。这款专为学生和教育工作者设计的教学套件，通过功能强大的Time Tagger简化了符合测量过程，让量子光学的探索变得直观易懂。其多功能性使学生能够更轻松地学习非经典光源和单光子实验等复杂概念。

Quantum Effects 2024

Tue, 08 Oct 2024 00:00:00 +0000

Quantum Photonics Spotlight 2024

Tue, 08 Oct 2024 00:00:00 +0000

Swabian Summer School

Fri, 27 Sep 2024 00:00:00 +0000

Introduction

We are excited to announce our first-ever Swabian Summer School! This 3-day workshop is designed to bring together Masters in their last year and PhD students for an intensive program on advanced photonic and quantum measurements using our Time Taggers with picosecond precision.

The Summer School program will include expert lectures on various related topics in the mornings, followed by hands-on and experimental sessions in the afternoons. Exciting social events and networking opportunities will inspire open discussion and chat with the entire Swabian Instruments community. Participants will have the chance to present their own research, foster connections, and exchange new ideas.

量子波动，音符跳跃

Mon, 16 Sep 2024 00:00:00 +0000

2024年9月4日，奥地利林茨新大教堂举办了一场独一无二的演出——布鲁克纳“纠缠之音” (Bruqner - The Sound of Entanglement) 全球首演。这场音乐会是顶尖科学家与当代艺术家之间的一次激动人心的合作，一次无限可能的尝试，重新探索了音乐和量子力学的边界。

QCrypt 2024

Mon, 02 Sep 2024 00:00:00 +0000

ECIS 2024

Sun, 01 Sep 2024 00:00:00 +0000

Accessing the Web Application Server from Another PC

Tue, 20 Aug 2024 00:00:00 +0000

This article relates to the now deprecated Time Tagger Web Application. Please consider using Time Tagger Lab (GUI) for local control of the Time Tagger hardware or Time Tagger Network for remote time tag streaming.

For security reasons, the Time Tagger Web Application server does not allow connections from the network computers; only localhost connections are allowed. The Time Tagger Web Application neither manages access rights nor encrypts the communication. Nevertheless, networking tools like SSH can provide secure access to a remote Time Tagger Web Application server. This requires an SSH server to be set up and run on the machine where you run your Web Application server. The remote clients then establish an SSH tunnel from their PC to the Time Tagger server (listening on the “localhost” of the server PC) and use the Web Application the same way as locally connected.

Analyzing Timestamps from Other Time Tagger Devices

Tue, 20 Aug 2024 00:00:00 +0000

Our software is specifically designed to work with Swabian Instruments’ Time Tagger products. The Time Tagger Virtual, for instance, uses ttbin files as its data source. These time-tag dump files are generated exclusively by our Time Tagger hardware.

We dedicate significant effort to optimizing the performance of our measurement classes, ensuring exceptional speed and efficiency. This unique level of optimization sets our products apart from the competition. As a result, our software is not compatible with third-party Time Tagger devices, and we do not provide access to the corresponding source code.

Choosing an Appropriate Bin Width for Histograms

Tue, 20 Aug 2024 00:00:00 +0000

With our Time Tagger you can choose any binwidth in the range from 1 ps to more than a day. The entire range is adjustable with one picosecond resolution. In addition to the number of bins, this setting determines the maximum time difference that you measure. This flexibility allows you to choose a proper binwidth purely based on the requirements of your experiment.

The following questions may help you identify and decide on the optimal bin width value for your measurement:

CPU Performance Impact on Transfer Rate

Tue, 20 Aug 2024 00:00:00 +0000

We conducted tests to determine the maximum transfer rate achievable with different CPUs using either Time Tagger Ultra or Time Tagger X. The transfer rate for the Time Tagger 20 is limited by USB 2.0 and, therefore, does not depend on CPU performance.

These results are indicative only and may vary with system load (background processes), power mode (plugged in vs on battery), thermal throttling, and OS/driver settings. To reproduce the measurements, use the example scripts included with the installation (default path):

Difference Between TimeTaggerNetwork and Pyro Control

Tue, 20 Aug 2024 00:00:00 +0000

The Time Tagger software allows you to access the device over the network from one or more clients. Two different approaches are possible (the second one only employing Python):

The TimeTaggerNetwork functionality, that is an integral part of the Time Tagger engine, allows you to send the time-tag stream to remote clients so that each client can process the stream independently. Multiple clients can connect to the server and subscribe to the channels they want to receive the stream. You can choose if the clients can change the hardware settings, like trigger level, deadtime, etc. This is done through server access mode. The direct operation to the time tagger object on the server always provides full access. The Time Tagger network server does not provide more fine-grained access control management. It is the user’s responsibility to distribute channels among the clients and define how they access them.

Effects of USB Hubs and Docking Stations on Transfer Rate

Tue, 20 Aug 2024 00:00:00 +0000

High-quality USB hubs and docking stations do not reduce the data transfer rate from Time Taggers to the PC. We conducted tests using both a USB hub (MCD Elektronik GmbH, model: USB 3.0 HUB 6 ) and a docking station ( Lenovo ThinkPad Tunderbolt 4 Docking Station ) to connect the Time Tagger X to a PC. In both cases, we found that the transfer rate was similar to that of the Time Tagger X when it was directly connected to the computer.

Exporting Data and Saving Plots

Tue, 20 Aug 2024 00:00:00 +0000

1. Do you need to save raw data into a text file, for instance, to perform custom analyses?

If so, you need to use the measurement class TimeTagStream, get the data using getData() and save them, for instance, using savetxt from numpy library (numpy.savetxt), similarly to what shown in Question 3. Alternatively, you can use the measurement class FileWriter to store the raw data into a ttbin file. To save time tags as text from these files, please see the attached Python code at the end of the document.

Fixing Broken Wires Due to .NET Assembly Mismatch

Tue, 20 Aug 2024 00:00:00 +0000

Usually, after the Time Tagger software update, you will notice that LabView cannot find the Time Tagger library anymore. When you open your VIs that was created with a different version of the Time Tagger .NET assemblies (libraries), LabVIEW will ask you to locate the “SwabianInstruments.TimeTagger.dll” file.

This happens because LabView associates the exact version of the .NET library with your VIs and tries to locate only that library. However, the Time Tagger software update naturally replaces the library with the new version. Press “Ignore All” button to finalize the VI loading.

Getting Started with Time Tagger in NI LabVIEW

Tue, 20 Aug 2024 00:00:00 +0000

The Time Tagger software engine is written in highly optimized C++ code. Other programming languages are supported through language wrappers (Python, Matlab C#/dotNET) and have the same features and function signatures. This makes programming of the Time Tagger in any supported language very similar and allows to use of the same documentation that is provided here .

From LabView, you can program the Time Tagger via the dotNET functionality provided by LabVIEW. All the functions are exactly as described in the programming interface documentation. Please take a look at the LabVIEW examples provided with the Time Tagger.

Impact of Registered Channels on Transfer Rate

Tue, 20 Aug 2024 00:00:00 +0000

The number of registered channels does not affect the overall transfer rate of a Time Tagger.

To demonstrate this, we enabled the test signals and aligned them in time. We measured the transfer rate for all Time Taggers models. Until Software version v2.16, the transfer rate for Time Tagger Ultra used to decrease by aligning more than 4 channels, reaching a max transfer rate of 36 MTags/s with 18 channels aligned.

Low Count Rate Due to CPU Overload

Tue, 20 Aug 2024 00:00:00 +0000

A low countrate may occur due to CPU overload, especially during computationally intensive measurements.

Each initialized measurement runs on its own thread, but only a few of our API measurements, such as HistogramLogBins , can utilize multiple cores. If a single measurement consumes excessive CPU time, the Time Tagger's hardware buffer can fill up, leading to an overflow event and data loss.

Example Scenario

Consider a time-resolved imaging experiment with 500 pixels × 500 pixels × 1000 bins per histogram, resulting in approximately 1 GByte of data. Modern high-performance computers (e.g., processors with DDR5 RAM) have a CPU-to-RAM bandwidth of about 38.4 GByte/s.

Maximum Time Span Window for Measurements

Tue, 20 Aug 2024 00:00:00 +0000

Time tags are represented as 64-bit integers in picoseconds; therefore the maximum time window of a measurement is approximately 107 days in both directions. However, the measurement accuracy for larger time intervals requires a correspondingly accurate as well as stable clock signal.

The internal clock of our Time Tagger 20 has a clock sufficiently stable to achieve jitter-limited measurements of time intervals up to about 100 ns, whereas with our Time Tagger Ultra and Time Tagger X, the internal clock is sufficiently stable to achieve measurements with a time span of up to 1-10 ms. Our Time Taggers can certainly measure larger time intervals, but users should expect increased time uncertainty beyond these referenced limits. For precise measurements over very long time intervals, users can introduce an external clock source with our Time Tagger Ultra or Time Tagger X.

Measuring the Average Count Rate

Tue, 20 Aug 2024 00:00:00 +0000

Time Tagger provides a Countrate measurement class that allows for the measurement of average count rate. The averaging can be done over infinite time (as long as measurement runs) and over precisely defined averaging duration.

Below is the Python code that shows how to perform average countrate measurement over infinite and well-defined durations.

Time Tagger connection


from time import sleep
import TimeTagger

# Create a TimeTagger instance to control your hardware
tagger = TimeTagger.createTimeTagger()

channels = [1, 2]

# This enables internal test signals for demo purposes.
# Comment the following line if you want to try this with an external signals
tagger.setTestSignal(channels, True)

Infinite average

Measure the Countrate over the whole run time:

Scanning for Time Tagger Servers on Different Subnetworks

Tue, 20 Aug 2024 00:00:00 +0000

The function ScanTimeTaggerServers() uses multicast UDP messages to find the server IP addresses. This works within local subnets, but its effectiveness across different subnets depends on whether the specific network routers pass on the multicast requests or not. If the TimeTaggerServer cannot be found by calling ScanTimeTaggerServers(), it is very likely that in the network, multicast routing is not allowed or unreliable. In this case, the only alternative is then to input the server IP address manually in the call createTimeTaggerNetwork() in the client PC.

Single vs. Multiple Start/Stop in Time Histograms

Tue, 20 Aug 2024 00:00:00 +0000

A measurement is of single start / single stop type when only time differences between each stop and the preceding start click are considered and accumulated into the histogram. On the other hand, multiple start / multiple stop analyses consider time differences between all start and all stop clicks, provided these differences fall within the measurement time span.

Time Histograms	Unidirectional (stop after start)	Bidirectional
Single start / single stop	StartStop, Histogram2D, HistogramND
Multiple start / multiple stop	Histogram, HistogramLogBins, TimeDifferences, TimeDifferencesND	Correlation
Single start / multiple stop	Hist2D_single_start_multiple_stop.py

Transfer Rate Limits for Each Time Tagger Model

Tue, 20 Aug 2024 00:00:00 +0000

Time Tagger Ultra (TTU) and Time Tagger X (TTX) utilize a USB 3 interface, allowing a maximum transfer rate of approximately 90 MTags/s . On the other hand, Time Tagger 20 (TT20) uses a USB 2 interface, which limits the maximum transfer rate to about 9 MTags/s . It is worth noting that the transfer rates depend on many different variables, e.g., CPU performance, workload from other running processes, power and performance settings, etc. The results mentioned above can only be achieved using a high-performance CPU with minimal workload from other applications running on the same computer.

Transfer Rate Using Time Tagger Network

Tue, 20 Aug 2024 00:00:00 +0000

The maximum transfer rate using Time Tagger Network is limited to the transmission speed of your local network. A widely adopted transmission technology in modern network infrastructures is the Gigabit Ethernet (GbE) that enables data rate of 1 Gbps. This limits the transfer rate from the Time Tagger Ultra or Time Tagger X to PC over the network up to 29 MTags/s.

Updating LabVIEW Code for New Time Tagger Software

Tue, 20 Aug 2024 00:00:00 +0000

This guide applies to the LabVIEW code created using Time Tagger software older than v2.4.0. Generally, the structure of the TimeTagger API remained practically the same except for a few minor changes. The LabVIEW code still uses .NET libraries to operate the Time Tagger, but we have changed how these libraries are located on user systems and how LabVIEW finds them. Earlier, you had to copy some DLL files to your project directory and point LabVIEW to their location.

USB Extenders and Their Impact on Transfer Rate

Tue, 20 Aug 2024 00:00:00 +0000

High-quality USB extenders and hubs do not reduce the data transfer rate from Time Taggers to the PC.

We tested several USB extenders using a Time Tagger X and Time Tagger Ultra, connected to a USB 3.0 port on a PC (CPU AMD Ryzen 9 5950X 16-Core 3.40GHz) with only essential background processes running. The maximum data transfer rates achieved aligned with the Time Tagger Specifications .

Recommended USB 3.x Extenders (Copper):

Lindy Active Extension Pro Series - available lengths: 8 / 10/ 15 / 20 / 30m
E.g., 10m extender: Lindy 43157

Recommended USB 3.x Optical Extenders:

For galvanically isolated extenders, we tested the following model:

Using the Same Channel in Multiple Measurements

Tue, 20 Aug 2024 00:00:00 +0000

Our API allows multiple measurement objects to access the same time tag stream simultaneously. Each measurement runs in its own thread, sharing the same event information. The number of measurements you can create is limited only by your CPU’s performance (clock speed, cores) and available memory.

For example, in our trade fair demonstrations, we successfully run about 10 simultaneous measurements on a Microsoft Surface tablet PC. Naturally, the required processing power also depends on the event rate on the physical channels.

Time Tagger 软件最新升级 v2.17 正式发布！

Tue, 02 Jul 2024 00:00:00 +0000

我们非常高兴地宣布，Time Tagger 软件 v2.17 已经正式上线！此次全面更新带来了众多新功能和改进，旨在提升 Time Taggers 的性能、功能和用户体验。

EFTF 2024

Thu, 27 Jun 2024 00:00:00 +0000

The highlight of the Month: Inspiring Visit from Leading Polymer Scientists.

Tue, 18 Jun 2024 00:00:00 +0000

At Swabian Instruments, we were proud to present the prototype of our latest technology DLScat to Prof. Dr. Albena Lederer and Dr. Susanne Boye. DLScat redefines Dynamic Light Scattering (DLS) measurements.

Extended Deadline: Apply Now for Swabian Summer School 2024!

Wed, 22 May 2024 00:00:00 +0000

Great news! The application deadline for the Swabian Summer School 2024 has been extended to June 14, 2024. Don’t miss your chance to join this 3-day workshop designed for final-year Master’s and Ph.D. students to advance their skills in photonic and quantum measurements using our Time Taggers with picosecond precision. Apply now!

CLEO 2024

Sun, 05 May 2024 00:00:00 +0000

Applications are now open for the Swabian Summer School!

Fri, 05 Apr 2024 00:00:00 +0000

We are thrilled to announce the first edition of the Swabian Summer School! This 3-day intensive workshop is tailored for Masters in their final year and Ph.D. students eager to level up their theoretical and practical knowledge and skills in advanced photonic and quantum measurements using our Time Taggers with picosecond precision. Don’t miss the application deadline 31.05.2024.

DPG 2024

Tue, 12 Mar 2024 00:00:00 +0000

Swabian Instruments congratulates IQST — Center for Integrated Quantum Science and Technology with the 10th-anniversary celebration!

Tue, 13 Feb 2024 00:00:00 +0000

The 13th of February was marked by an exciting celebration uniting scientists and businesspeople from all over the world who are passionate about quantum technology. Engaging with the dynamic quantum community and exchanging insights and ideas with such a distinguished group of professionals was a true pleasure.

Photonics West 2024

Sat, 27 Jan 2024 00:00:00 +0000

Swabian Instruments助力高等教育为学生提供单光子随机取样装置，为卓越学术奠定基础

Wed, 29 Nov 2023 00:00:00 +0000

Swabian Instruments近日向巴登符腾堡州州立合作大学（DHBW）捐赠单光子随机抽样实验教学设备，支持该校教学发展。该实验教学设备基于我们创新且易于使用的Time Tagger软硬件平台，能将单光子随机抽样实验中的皮秒级快速信号可视化。

ECIS 2024

Fri, 24 Nov 2023 00:00:00 +0000

Swabian Instruments 出席斯图加特量子科技发展研讨会

Mon, 20 Nov 2023 00:00:00 +0000

上周，我们的团队出席了在斯图加特应用量子技术中心举行的量子科技发展研讨会，并与斯图加特市市长Nopper博士和巴登-符腾堡州前州长Oettinger先生会面。

ITSF 2023

Mon, 30 Oct 2023 00:00:00 +0000

ILMAC 2023

Tue, 26 Sep 2023 00:00:00 +0000

ICEQT23

Sun, 17 Sep 2023 00:00:00 +0000

ITSF 2022

Mon, 07 Nov 2022 00:00:00 +0000

ISPCS 2022

Wed, 02 Nov 2022 00:00:00 +0000

MAF 2022

Wed, 14 Sep 2022 00:00:00 +0000

DPG 2022

Thu, 08 Sep 2022 00:00:00 +0000

Terms & Conditions

Wed, 22 Jun 2022 00:00:00 +0000

As PDF file: General Terms and Conditions of Sale

Miscellaneous

Information about returns of waste electrical and electronic equipment according to ElektroG §7a and EU-Richtlinie 2002/96/EC is available for download under the following link B2B_Ruecknahmekonzept.pdf.

Laser World of Photonics World of Quantum 2022

Tue, 26 Apr 2022 00:00:00 +0000

EFTF-IFCS 2022

Tue, 29 Mar 2022 00:00:00 +0000

PW & BiOS 2022

Sat, 22 Jan 2022 00:00:00 +0000

ITSF 2021

Mon, 01 Nov 2021 00:00:00 +0000

通过Python实现Time Tagger的远程控制

Mon, 07 Jun 2021 00:00:00 +0000

您是否期待可以远程控制Time Tagger？我们为您提供了如何通过Python和Pyro5库实现这一想法的方案。访问GutHub即可获取开源项目包。这里还有详尽的教程和代码示例，让您可以轻松上手。

在白兔（White Rabbit）应用中测量秒脉冲（1PPS）信号的定时精度和抖动

Mon, 19 Apr 2021 00:00:00 +0000

如今，准确计时信息的传输不仅在科学领域，而且在工业和金融领域也日渐受到重视。

QD 2020

Mon, 07 Dec 2020 00:00:00 +0000

ITSF 2020

Tue, 03 Nov 2020 00:00:00 +0000

室温单光子探测器定时分辨率的新纪录

Tue, 17 Sep 2019 00:00:00 +0000

12.5 ps的时间抖动，这是Swabian Instruments公司与加拿大舍布鲁克大学合作实现的单光子探测器分辨率的新纪录。

Swabian Instruments迁入斯图加特-祖文豪森的新址

Mon, 26 Aug 2019 00:00:00 +0000

Swabian Instruments在斯图加特-维辛根的斯图加特大学校园“车库创业”的时代现在已经结束。7月1日，我们迁入在斯图加特-祖文豪森的新址。

弗劳恩霍夫–创新的远程氢探测方法

Fri, 05 Jul 2019 13:05:44 +0000

弗劳恩霍夫应用光子学中心的研究人员开发了一种[创新的远程氢探测方法]。我们很高兴看到Swabian Instruments正在通过自己的技术为安全的核废料监控研发高效的解决方案。

Vimeo视频: 创新的远程氢探测 - Game Changers Innovation频道

David Stothard博士

激光与激光系统部门副主任

弗劳恩霍夫应用光子学中心

Time Tagger Ultra成为TCSPC测量的理想选择，这更加强化了这一概念研究的证据。从技术角度来看，它在时间分辨率方面性能高超，吞吐量也足以完全捕获仪器产生的光子到达事件，数量可达到以往单发激光所能捕获的范围相关光子数量。这在改进仪器的采集时间方面发挥了重要作用。除原始性能外，Time Tagger尤为令人瞩目的是其非凡的灵活性，可直接与一系列探测器进行电力衔接，并且可轻松快速整合到我们的系统中。使用设备附带的软件，可在拆箱一个小时内就开始进行有意义的测量，并且能够与我们自己编写的计算机代码快速无缝衔接，用于实验运行。Time Tagger之所以能够及时开发出这一高难度程序，其优良的计时性能与灵活性至关重要。

Swabian Instruments已入围“德国创始人奖”大奖评选的决赛，这是德国最富盛名的企业家奖项

Thu, 13 Jun 2019 18:06:23 +0000

7月3日，颇具盛名的“德国创始人奖”评委会评选出了2019年度德国最杰出企业家。来自奖项合作伙伴保时捷、《亮点》杂志、ZDF和Sparkasse的知名专家在600多个杰出候选企业中将Swabian Instruments选为创业类前3名入围企业之一。公司的“杰出科研能力”和“创始人的说服力”令评委会印象深刻。您可查看官方声明，或访问“德国创始人奖”的官方网站！

该奖项表彰了我们的技术对高精度数字测量产生的全球影响力。从单分子显微镜到DVB-T2网络，我们的客户均为应用领域的领导者，包括世界一流大学及高科技巨头。我们为客户的数字数据采集提供了更为快捷的解决方案。

利用硅光电倍增管和Time Tagger Ultra探测多个光子

Mon, 03 Jun 2019 13:05:44 +0000

硅光电倍增管（SiPM）在高精度单光子定时测量中具有很多应用场景，包括LIDAR、生物光子学和正电子发射断层扫描。它们探测闪烁事件中光子数量的能力是获得低噪声、高保真信号的关键。以往，从探测器输出脉冲中提取光子数是通过快速ADC或多级模拟鉴别器（过阈时间法time-over-threshold approach）来实现的。Swabian Instruments与KETEK GmbH一起开发了一种新的方法，仅使用单个输入阈值并依靠信号脉冲持续时间。通过检测上升沿和下降沿，我们会获得一个明显的脉冲宽度，该脉宽直接编码光子数。这种测量能力是由Swabian Instruments的Time Tagger Ultra实现的。其高定时精度可精确表征探测器的定时抖动。

我们的脉冲宽度过滤法能够解析光子数，并同时为探测到的光子提供精确的定时信息。利用Time Tagger的流架构，同时读取光子数量和定时信息，显示了Time Tagger及其软件引擎的多功能性。事实证明，Time Tagger是多光子探测器表征以及正电子发射断层扫描（PET）等各种应用开发中的有力工具。

相关技术细节，请查看应用注释。

利用单光子就可实现破纪录的定时分辨率

Wed, 30 Jan 2019 18:19:46 +0000

时间相关单光子计数（TCSPC）是一种基于单光子探测并以高时间分辨率测量其到达时间的测量技术。

Swabian Instruments与Single Quantum一起开发了一种商用TCSPC设置，其定时抖动达到了新低。利用单量子Eos SNSPD系统和新Time Tagger Ultra HighRes的预发布单元，用两个探测器检测到的完整的双光子符合相关其总抖动仅为7.6 ps RMS（18 ps FWHM）。

应用注释(PDF)中可了解更多技术信息.

Swabian Instruments成功获得2018年创新奖

Wed, 12 Dec 2018 10:46:12 +0000

11月，巴登-符腾堡州颁发了2018年度工业、手工业和技术服务业中小企业创新奖。获奖公司因其在新技术开发和应用方面的杰出表现而获此殊荣。

经济事务、劳工和住房部的Nicole Hoffmeister-Kraut博士对获奖公司所取得的成就进行了表彰，并对这些新兴公司开发和销售新的技术表示赞赏。她说：“我们希望以创新奖来表彰那些用发明和创造推动西南地区经济发展的中型公司。”

在94家候选企业中，Swabian Instruments取得了第二名的好成绩，并获得了15,000欧元的奖金。microTEC cluster Südwest的董事总经理Christine Neuy博士在进行表彰时总结了Helmut Fedder博士、Michael Schlagmüller博士和Markus Wick的出色表现，并引用了伽利略的名言：“测量那些可以测量的，并把那些无法测量的变得可以测量。”

她说：“在Time Tagger的研发过程中，三位科学家对测量技术进行了革新，使全世界的科学家能够以灵活、可扩展且具有成本效益的方式实施测量。”“麻省理工学院、马克斯·普朗克研究所和清华大学等国际著名研究机构都是他们的客户。”

首席执行官Helmut Fedder博士认为Swabian Instruments前途无量：

作为一家新兴的小型创业公司，我们很荣幸可以获得这一著名奖项。我们深信，凭借出色的技术和团队，我们正在突破数字数据采集业务的新极限。

作为一家公司我们深知，没有您这样的客户支持，我们永远无法取得成功。在此，郑重感谢各位！

单光子随机采样可轻松、精确地测量光信号，最高可达THz级别

Wed, 16 May 2018 13:05:44 +0000

单光子计数已在量子技术中得到了广泛的应用，例如量子感应、量子信息和量子通信。最近有人提出，低抖动单光子探测器可用于实现带宽远远超过100 GHz的光学随机取样范围，这是现有测量仪器无法达到的。该技术可用于研究锁模激光器和下一代电光设备，如EOM和VCSEL。此外，光学采样技术不需要在金属线上传输极快的电信号，后者会导致信号失真程度增加和高带宽信号衰减。在Swabian Instruments的应用注释中，我们进行了一次原理证明演示测量，并描述了使用单光子雪崩探测器（SPAD）和超导纳米线单光子探测器（SNSPD）的SFP+模块。随着当前SNSPD的抖动达皮秒级别，该方法可保证测量带宽远超100 GHz。

更多相关技术细节，请查看应用注释。

单光子来源：Sparrow Quantum与Montana Instruments

Fri, 27 Oct 2017 21:45:52 +0000

随着量子技术的兴起，精确时间相关光子计数成为分析量子设备的关键技术之一。接下来的案例是关于应用程序的数据采集和评估，它充分展示了Swabian Instrument Time Tagger在分析APD探测单光子信号方面的优势。

Sparrow Quantum和Montana Instruments拥有强大的单光子芯片，通过一套演示设置，它们展示了该芯片如何产生稳定的单光子流，并且可与Montana Instruments低温光学X-Plane系统形成极佳的耦合效率。

图1 连接Time Tagger 20的单光子源（右上）

X-Plane系统（图1左侧）包括低温样品、安装座和物镜。激发、收集和成像光学器件（包括滤光片和汉伯里布朗及特维斯装置）包裹于外壳内，可最大程度减少杂散光，并为器件提供保护。有关样例的设置和测量，请参见以下应用注释获取更多详细信息: Sparrow Quantum单光子芯片与Montana Instruments低温光学X-Plane系统相结合

用Time Tagger 20（右上角）衡量光子源的表现：利用Time Tagger API的相关性测量类所提供的多起点/多终点功能，可对HBT配置中的相关光子进行计数。用户界面简单易用，可对数据进行实时评估，非常适合此目的。

图2：使用Time Tagger API实时测量单光子纯度 (.NET library)

评估数据（图2）显示g2（0）信号非常低，还可看到60 MHz激发频率的单光子发射。另外，峰值高度相等说明光子源稳定且不受发射器闪烁影响。

Toke Lund-Hansen

Sparrow Quantum公司首席技术官

Sparrow Quantum

我们最后使用的是Time Tagger加一个C＃应用程序，非常容易实现。仅需几行代码，我们就可以分析单光子源的性能。我会推荐Time Tagger——尤其是用于你自己的控制软件。

使用Time Tagger API（Python，Matlab，C＃等），只需多加两行代码就可使用多起点/多终点分析来获取、累积和分析数据:

Line 1: initialize the measurement
 Ch, Ch, window in ps
> correlation = Correlation(timetagger, 0, 1, 200)

Line 2: evaluate the integrated data
> histogram = correlation.getData()

通过这种非常简单的数据采集和评估方式，我们可以看到Swabian Instruments提供的软件定义数据采集所具备的优势。

当Swabian Instruments遇到Enthought Python

Wed, 18 Jan 2017 13:05:44 +0000

斯图加特大学第三物理研究院科学家Wrachtrup教授将Swabian Instruments的Time Tagger 20和Enthought的Python库库结合使用，立即开发出功能丰富的实验控件。第三物理研究院的团队正在研究下一代量子计算机和量子传感应用程序，它们将使用可单独寻址的金刚石分子缺陷（在最新出版物中查询详细信息)。为了控制和测量脆弱的量子比特，研究人员将Time Tagger 20和Pulse Streamer 8/2设备与Enthought的开源Traits软件包结合在一起。Traits可分担您开发图形用户界面（GUI）的问题。用Traits编写的Python脚本会自动生成GUI。Traits会在Python中应用一个现代模型-视图-控制器框架，该框架足够智能，可从脚本中了解GUI应有的外观以及与用户互动的方式。事实证明，Enthought的Traits软件包与Time Tagger 20和Pulse Streamer 8/2 的硬件相结合是一种极其灵活的方法，可以为物理实验开发控件和GUI。它缩短了开发时间，使编程工作降至最少。第三物理研究院将其代码命名为pi3diamond，并以GPL的名义发布。pi3diamond软件可应用于共聚焦激光扫描显微镜、反聚束、FLIM、脉冲电子和核自旋共振以及其他一些更为复杂的量子物理实验，这些实验通常是用金刚石中的氮-空位中心进行的。

隐私政策

Tue, 29 Nov 2016 22:48:34 +0000

一般性政策

我们会根据德国数据隐私法的规定处理您的个人数据(例如头衔、姓名、家庭住址、电子邮件地址、电话号码、银行详细信息、信用卡号)。以下条款描述了收集、处理和利用个人数据的类型、范围和目的。本数据隐私政策仅适用于我们的网页。如果我们页面上的链接将您带到其他页面，请在此咨询在这种情况下如何处理您的数据。

清单数据

(1) 对于履行本合同关系所必需的个人数据(清单数据)，其建立、内容组织和修改仅可用于履行合同。例如，在交付货物时，您的姓名和地址必须转达给货物供应商。

(2) 未经明确同意或没有法律依据，您的个人数据不会传递给履行本合同范围之外的第三方。合同完成后，您的数据将被锁定，不会再进一步使用。在税收相关法规和商业法规规定的期限到期后，除非您明确同意进一步使用，否则将删除这些数据。

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(1) 为了优化我们的网站，我们使用Cookies。这是存储在计算机主存储器中的小型文本文件。这些Cookies将在浏览器关闭后被删除。其他Cookies(长期Cookies)仍保留在您的计算机上，并在下次访问时允许识别。这有助s于我们改善您对网站的访问体验。

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信息披露

根据《联邦数据保护法》，您有权免费获得有关已存储数据的信息，并可能有权更正、阻止或删除此类数据。可通过以下电子邮件地址咨询: info -at- swabianinstruments -dot- com

版本说明

Tue, 29 Nov 2016 22:47:58 +0000

符合《电信媒体法》(TMG)第5节的信息

法人

Swabian Instruments GmbH
Stammheimer Str. 41
70435 Stuttgart

法人代表

Dr. Michael Schlagmüller

联系方式

电话: +49 711 400479-0
邮件: info -at- swabianinstruments -dot- com
网址: www.swabianinstruments.com

注册条目

德国商业登记条目
注册号: HRB 758962
注册法院: 斯图加特地方法院

增值税号

符合德国增值税法第27a条的增值税标识号:
DE309507862

免责声明

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我们的网页及其内容受德国版权法约束。除非法律(版权法第44a条及其后各条)明确许可，否则以任何形式使用、复制或处理我们网页上受版权保护作品，都必须事先获得相应权利所有人的同意。个人复制作品仅允许私人使用，因此不得直接或间接用于获取收益。未经授权使用受版权保护的作品可受处罚(版权法第106条)。

Mon, 01 Jan 0001 00:00:00 +0000

Brandon Ginkemeyer, Harvard

Mon, 01 Jan 0001 00:00:00 +0000

I really like the Swabian Instrument’s usability and reliability. A senior student in my neighboring group said that the Time Tagger is his favorite instrument.

Dr. Ted S. Santana, NPL

Mon, 01 Jan 0001 00:00:00 +0000

My experience with the Swabian Time Tagger has been excellent. It is a truly plug-and-play device with intuitive and user-friendly software.

How to Cite Swabian Instruments

Mon, 01 Jan 0001 00:00:00 +0000

Introduction

About this Citation Guideline

Obtaining measurements that are robust and trustworthy is key to technological advancements. Swabian Instruments is strongly user-focused and continuously invests in further advancements. Close collaboration with scientists ensures our methods and offerings are state-of-the-art.

Adequate referencing of Swabian Instruments when publishing scientific results or engineering data is extremely important as we continue to improve our software-packages and support for scientists.

We are eager to witness your advancements in the field, and would love to spread the word of your work! If you would like us to showcase your publication in our social media and/or website, please send full bibliographic info once published to references@swabianinstruments.com

Igor Shavrin

Mon, 01 Jan 0001 00:00:00 +0000

Introduction to Particle Sizing with Dynamic Light Scattering System

Mon, 01 Jan 0001 00:00:00 +0000

Dynamic Light Scattering (DLS) characterizes particles from nanometers to micrometers by analyzing intensity fluctuations in scattered light caused by Brownian motion. Correlation timing electronics convert intensity data into correlation functions and diffusion coefficients, which yield hydrodynamic radius via the Stokes-Einstein equation. Multiangle DLS measurements provide robust size distributions for polydisperse samples using Cumulant or CONTIN analysis methods.

Markus Wick

Mon, 01 Jan 0001 00:00:00 +0000

Mirco Kolarczik

Mon, 01 Jan 0001 00:00:00 +0000

Nadja Teupe

Mon, 01 Jan 0001 00:00:00 +0000

Photon Number Resolution: Background and State-of-the-Art

Mon, 01 Jan 0001 00:00:00 +0000

Photon Number Resolution (PNR), the ability to distinguish how many photons are impinging on a single photon detector within a defined time window, can be achieved through pseudo-PNR, where photon numbers are statistically inferred, or intrinsic PNR, where photon numbers are measured directly from the detector signal.

Pulse Streamer 8/2 - Software

Mon, 01 Jan 0001 00:00:00 +0000

Sales

Mon, 01 Jan 0001 00:00:00 +0000

Thank you

Mon, 01 Jan 0001 00:00:00 +0000

Explore our Applications

Time Tagger Series - 软件下载 - 更新档案

Mon, 01 Jan 0001 00:00:00 +0000

Time-Correlated Single Photon Counting (TCSPC)

Mon, 01 Jan 0001 00:00:00 +0000

Time-Correlated Single Photon Counting (TCSPC) is a technique that measures the precise arrival times of individual photons emitted by a sample following an excitation with a pulsed light source.

软件下载

Mon, 01 Jan 0001 00:00:00 +0000