Pulsed laser diode illuminator: Illuminator for ultra-short pulses

 Bernard Azout

Key features:

  • Energy and pulse width from 2µJ/3ns to 10µJ/3ns
  • Maximal pulse repetition rate between 100 and 500 kHz
  • Up to 1 W average power
  • Single wavelength emission among 808, 905, 915, 940 or 980 nm (other wavelengths in option)
  • Fast-axis collimation upon request for one-bar diode design
  • High reliability (> 100 x 109 shots)
  • Robust design, shock and vibration resistant



Average Power

Pulse duration



From 2 to 10 µJ – 3 ns, up to 500 kHz

That illuminator can generate pulses as short as 3 ns with energies from 2 to 10 µJ. It can support pulse repetition rates in the range 100-500 kHz, depending on output energy per pulse, with a maximum average power of 1 W.

That illuminator integrates a laser diode and a driver board whose combination allows generation of nanosecond pulses. Laser diode design and manufacturing benefit from the sound know-how of Quantel’s Diode Department in hard solder technology already developed for QCW laser diodes to ensure efficiency and reliability. With its proprietary technology for nanosecond pulsed laser diode illuminators, Quantel offers unique laser sources that are compact, low-cost and highly efficient. While high output average power (typically higher than 2 W) will require a suitable cooling system, low output average powers make these laser diode sources ideal for integration into confined volumes. Typical applications are 3D flash LIDAR, scanning LIDAR or time of flight measurements.

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