Illuminator for Multi-Wavelength Emission

Up to 8 mJ with 4 wavelengths – 6 kHz

That illuminator can generate pulses from 80 to 130 ns from up to four independent diodes. Each diode can emit at a given wavelength, 1 to 2 mJ depending on the pulse width. That leads to an overall emission of maximum 8 mJ. It can support a pulse repetition rate of up to 6 kHz (higher frequencies, up to 10 kHz, can be used in burst mode of 20 pulses). A maximum average optical power of 24 W can be generated if used in combination with a suitable cooling system.

That unique high-tech module integrates up to 4 diodes and a driver board into a closed protecting housing and will then be particularly suitable for high average power generation at one wavelength or for multi-wavelength emission. Components of that module have been selected to provide the highest possible efficiency, leading to a low power consumption. Additional equipment required to operate that illuminator, such as external low and high voltage power supplies, function generator and thermoelectric assembly for active cooling, can be provided as an option.

  • Energy per diode and pulse width from 1mJ/80ns to 2mJ/130ns
  • Up to 8mJ overall energy & 24W average power
  • Up to 6kHz pulse repetition rate in continuous mode (up to 10kHz available in burst mode)
  • Multi-wavelength emission possible with up to 4 wavelengths among 808, 915, 940 or 980 nm
  • Fast axis collimation of diode bars included
  • High reliability (> 100 x 109 shots)
  • Robust design integrated into a closed protective housing



That upmarket illuminator integrates up to 4 diodes 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 portable and even hand held devices. Typical applications are photoacoustics, NIR spectroscopy, ultrasound generation, 3D flash LIDAR or time of flight measurements.


Part number QD-Qxy24-ILO(4)
Pulse width (ns) 80 100 130
Pulse energy per diode (mJ) 1 1.5 2
Maximum pulse energy (mJ) 4 6 8
Maximum average power (W) 24
Maximal frequency (kHz) 6 4.5 3
Standard wavelengths (nm) Up to 4 wavelengths among 808, 915, 940, 980 (1)

(1) Optional wavelengths upon request with less energy are 635 nm, 760 nm or 1.55 µm.



  • Ultrasound generation
  • Photoacoustics
  • NIR spectroscopy
  • 3D flash LIDAR
  • Time of flight
  • etc.