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High-Power Pulsed Nd:YAG Lasers

Model LQ929

High-Power Pulsed Nd:YAG Lasers LQ929

The LQ929 is a series of compact lamp-pumped Nd:YAG lasers built under the scheme master-oscillator – one-pass amplifier and having uncompromising combination of the main parameters: high output power, exceptional beam quality and minimum laser head and power supply dimensions.

  • Oscillator-amplifier configuration
  • High pulse energy up to 1.5 J
  • Excellent beam quality
  • All the harmonics available up to 213 nm
  • Compact single-phase power supply
  • No external water requirements




The master oscillator of the LQ929 laser series, just as that of the LQ529 has ring cavity. The principle of operation of the ring cavity scheme and utilisation of pump chambers with high-efficiency diffuse reflectors provide output laser radiation with homogeneous beam profile and exceptional stability of output energy and spatial radiation parameters.

Typical beam profile at 1064 nm. Near field

All the critical components of the laser are thermally stabilised which in combination with vibration-proof design ensures unsurpassed long-term stability of output radiation. The efficient thermostats used in the LQ929 ensure warm-up time of less than 10 min.

To reduce your time expenses on routine service of the LQ929 we provided flash lamp life time of more than 30 million pulses and foreseen easy and quick procedure of its replacement.

Closed-loop water-to-air cooling system is integrated into a compact single-phase laser power supply which can be controlled both from PC and via the remote control unit.

Nd:YAG laser model LQ929

Model LQ929A (1064 nm) LQ929A (532 nm) LQ929A (355 nm) LQ929A (266 nm) LQ929A (213 nm)
PRR, Hz 5 10 5 10 5 10 5 10 5 10
Output energy, mJ, not less than 1064 nm 1400 1400 1400 1400 1400
532 nm 800 630 800 630
355 nm (HPV)1), 2) 420 420 420 420
355 nm2) 390 350 390 350
266 nm3) 210 190
213 nm (HPV)1), 4) 45 40
213 nm4) 40 35
Beam diameter, mm5) ≤ 11


Model LQ929B (1064 nm) LQ929B (532 nm) LQ929B (355 nm) LQ929B (266 nm) LQ929B (213 nm)
PRR, Hz 5 10 5 10 5 10 5 10 5 10
Output energy, mJ, not less than 1064 nm 1000 1000 1000 1000 1000
532 nm 600 450 600 450
355 nm (HPV)1), 2) 300 300 300 300
355 nm2) 280 250 280 250
266 nm3) 200 180
213 nm (HPV)1), 4) 45 40
213 nm4) 40 35
Beam diameter, mm5) ≤ 10


Model For all the Models
Pulse-to-pulse energy stability, ±%5) < 2.5
Pulse duration, ns5) 10…12
Divergence, mrad5) ≤ 1.5
Jitter, ns6) ±1
Power consumption, W ≤ 1200
Cooling system water-to-air
Dimensions (LxWxH), mm Laser head 625 x 220 x 125
Power supply 700 x 366 x 693

* Specifications are subject to change without notice.

1) For the high-power version at 355 nm.
2) With the LG103T external third harmonic generator.
3) With the LG103F external fourth harmonic generator.
4) With the LG105 external fifth harmonic generator.
5) At 1064 nm.
6) Relative to the Q-Switch driver external trigger pulse.

Dimensions of the LQ929 laser head

Dimensions of the LQ929 power supply



In the standard configuration the LQ929 laser has built-in SHG. Upon your request the SHG, THG, FHG and FiHG can be supplied as external stand-alone modules.


LG101 & LG103 External generators for Nd:YAG lasers


Upon your request the LQ929 laser can be supplemented with an optical parametric oscillator of the LP600 series. In such a combination you will have a source of continuously tuneable laser radiation within a wide spectral range (from UV to IR).

Optical Parametric Oscillator for Nd:YAG lasers



Compact and easy to adjust and operate Raman shifter efficiently converts 1064 nm or 532 nm output radiation into several additional laser lines within the visible and IR range.



The IR converters are very compact devices with built-in OPO operating in the NCPM mode. The range of IR converters are laser sources providing fixed output wavelengths from 1.5 µm to 3.5 µm.



The laser can be supplemented with a variable power attenuator. Upon your choice it can be either a unit optimised for operation at one wavelength or an achromatic attenuator intended for simultaneous attenuation of all the laser harmonics from 266 nm to 1064 nm.

Attenuator of high-power laser radiation



A number of applications require quick and flexible laser beam delivery to the research object or the place of measurements. For this an optical fiber can be used but only for delivery of low pulse energy radiation (5-20 mJ). To deliver high-power radiation we offer to supplement the laser with a mirror articulated arm. To minimise losses of laser pulse energy we use special dielectric mirrors with high reflection coefficient simultaneously for 1064 nm and 532 nm.

Nd:YAG laser with mirror articulated arm


If you plan to use the LQ929 laser in laboratory experiments, as a bonus you will get unsurpassed operational reliability and minimisation of accompanying expenses.

The LQ929 is an ideal instrument for such applications as:

  • Ti-Sapphire and OPO Pumping
  • Dye Lasers Pumping
  • Spectroscopy
  • LIF (Laser Induced Fluorescence)
  • LIBS (Laser Induced Breakdown Spectroscopy)
  • Education
  • PIV (Particle Image Velocimetry)
  • Ablation
  • Plastic and Ceramic Components Marking
  • Laser Cleaning
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