High-power pulsed N: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

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/ Description

/ Specifications

/ Options & Accessories

/ Applications

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.

LQ929 laser typical near field beam profile.

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

Download Specification

Model		LQ929B		LQ929A
PRR, Hz		5	10	5	10
Pulse energy, mJ	на 1064 nm	1000	1000	1400	1400
	на 532 nm	600	600	800	800
	на 355 nm ¹⁾	300	300	420	420
	на 266 nm ¹⁾	200	180	210	190
	на 213 nm ¹⁾	45	40	45	40
Beam dia²⁾, mm		< 10		< 11
Pulsewidth, nm (FWHM), ns ²⁾		8-12
Divergence ²⁾, mrad		≤ 1,5
Pulse energy stability (RMS) , % ²⁾		≤ 1
Jitter (StdDev) , ns³⁾		≤ 1
Cooling		Water-air
Electrical service		200…240 V, 50/60 Hz, < 1200 W
Dimensions (L×W×H), mm	Laser head	665 х 220 х 125
Dimensions (L×W×H), mm	Power supply	695 х 367 х 700

* Specifications are subject to change without notice.
1) With external harmonic generator.
2) Specified at 1064 nm.
3) With respect to QSW IN pulse.

LQ929 laser head outline drawing.

LQ929 power supply outline drawing.

HARMONIC GENERATORS

In the standard configuration the LQ929 laser has built-in SHG. However, upon your request the harmonic generators can be supplied as external stand-alone modules: THG, FHG or FiHG are available only as an external unit.

Nd:YAG laser system with external harmonic generators

OPO

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).

Nd:YAG laser system with OPO

ATTENUATOR

The laser can be supplemented with a PC controlled 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.

High power laser beam attenuator

ARTICULATED ARM

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.

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PIV (Particle Image Velocimetry)
Ablation
Marking
Laser cleaning