The DL nSec is a compact diode laser with sub nanosecond digital modulation. It enables arbitrary digital modulation and on-demand triggered picosecond pulses in a common operation mode. It provides pulse widths of ~300 ps FWHM (specifications depend on the wavelength and diode type). A unique feature of DL nSec is its > 90 dB extinction ratio. The laser offers convenient control via a USB interface.

Key features

  • rise time < 1 ns
  • short pulse feature with 300 ps FWHM (typical)
  • arbitrary digital modulation from sub‐ns to CW
  • > 90 dB extinction ratio
  • small form factor
  • easy to use USB interface
  • stand‐alone operation with internal auto‐trigger

Available laser diodes

ModelWavelengthPower (cw)
PE 405 405 nm80 mW
PE 450 450 nm70 mW
PE 520 520 nm40 mW
PE 633 633 nm80 mW
PE 638 638 nm30 mW
PE 670 670 nm10 mW
PE 705 705 nm40 mW
PE 730 730 nm40 mW
PE 785 785 nm85 mW
PE 808 808 nm125 mW
PE 1064 1064 nm40 mW


Test conditions: 520 nm diode, 30 mW output power, external trigger.

Typical pulse characteristics
Rise time< 1 ns
Max. repetition rate> 125 MHz

Digital inputs and outputs
TRIG inputSMA, 50 Ω
TRIG level1.4 V
SYNC outputSMA, 50 Ω
SYNC output high level1.25 V, 50 Ω
SYNC output rise and fall time< 2 ns
Internal auto‐trigger mode
Minimum pulse duration50 ns
Max. repetition rateup to 62.5 kHz
Driver parameters
Laser diode current1-300 mA
Power supply7.5V, 800mA, 2.1mm jack plug-in power supply
Control interface
ConnectorUSB mini type B
Software drivernot required
Communication protocolserial, plain text
Mechanical parameters
Housinganodized aluminum
Mount optionsM4, M6, mounting groove
Dimensions (L x W x H)74 x 50 x 62 mm
Mechanical drawings
Base view

Base view

Side view

Side view