Nanosecond Pulsed Laser Diode

Lens AR-coated glass asphere
In stock

Compact, battery powered, 650-nm pulsed laser diode with a subnanosecond rise time.  Pulses are triggered by a TTL-like signal.

Regular price $313.00 Sale price $313.00
Front view of nanosecond pulse laser diode (NLD-01) showing collimation lens and 650 nm output.

  • Pulsed 650-nm laser diode source
  • Sub nanosecond rise time
  • Adjustable collimated output
  • Repetition rate up to 100 kHz
  • TTL triggered
  • Output energy: 0.4 nJ/pulse
  • USB Rechargeable: 25 hr continuous operation at 150 kHz
  • Standard 1” lens tube package with 1.035"-40 thread

  • Detector testing and characterization
  • Time-of-flight measurements
  • Pump-probe measurements

A nanosecond electrical pulse energizes a laser diode, producing a short pulse of light.  Triggering is accomplished via a fast-switching, avalanching transistor, which discharges an RC network with a time constant of 1 ns. The high voltage required to avalanche the transistor is generated by an efficient, low-ripple DC/DC converter.  The DC/DC converter provides sufficient current to provide a pulse rate of 350 kHz.

Contact us to discuss custom solutions, pricing and lead-time. Example customizations include:

  • Wavelength
  • Energy per pulse
  • Collimation optics
  • Spontaneous emission / max trigger rate


Rise time≤ 0.4 ns
Pulse width≤ 1.5 ns
Output energy0.4 nJ/pulse
Max pulse rate
    @ full power
350 kHz
150 kHz
Spontaneous pulses240 s-1
Wavelength650 nm
Trigger thresholdVtrig ≥ 3.2 VPP
Trigger range-0.5 V ≤ Vtrig ≤ 5 V
Trigger rise time5 ns < trise < 100 ns
Battery charge time2 hr
Battery life25 hr @ 150 kHz
Operating temp5-30° C


Affordable Nanosecond Pulses

Laser pulse measured with an Osram SiPM detector and a Tektronix scope.  The intrinsic pulse rise time and width are ≤400 ps and ≤1.5 ns, respectively.


Rep Rates from Hz to Hundreds of kHz

Energy per pulse as a function of triggered pulse rate for a typical device.  Below 150 kHz, the energy per pulse is approximately constant and gradually declines at higher frequencies up to the maximum trigger rate of 350 kHz.

Time of Flight with a Silicon Photomultiplier and Nanosecond Pulsed Laser

In this video, we'll introduce two of our products with nanosecond time resolution: a silicon photomultiplier (Eikonal SIPM-01) and a pulsed laser diode (Eikonal NLD-01). Exploiting the nanosecond resolution, we'll set up a simple time of flight experiment to measure the speed of light on a table top.