GQA/BxJ laser line

The GQA/B-xJ Series of Repetitive Pulsed Nd:YAG Laser

The GQA/B-xJ lasers are based on a Nd:YAG oscillator and Nd:YAG amplifiers. The lasers produce near-diffraction limited single-longitudinal mode radiation in the nanosecond regime from 0.2 to 2 Joules per pulse (fundamental harmonic) and from 0.1J to 1.2J (second harmonic). Design features include a highly stable electro-optically or passively Q-switched ring-cavity oscillator, 4-pass SBS phase conjugated amplifiers using beam apodization and optional frequency conversion to the second or third harmonics. The GQA range of lasers have quasi-gaussian beam distribution. The higher energy GQB lasers have top-hat distributions.

-E --- Built-in digital energy meter;
-C --- Control of all functions from a PC;

System Features
LCD Pulse Counters
Low Energy Pilot Mode for Alignment
Programming of Amplifier and Oscillator Voltages
Shutter-based repetition rate selector for 1 - 20 Hz operation
CE compliant

Optical Scheme for all GQA/B-xJ laser systems.
Note that the second amplifier is only used for models GQA-11J and GQB-15J.

Technical Parameters of the most popular models

Model GQA-05J GQB-07J GQA-07J GQA-1J
Output Wavelength: 1064nm; 532nm; 355nm
Max Output Energy: 1J; 0.5J; 0.25J 1.5J; 0.75J; 0.35J 1.5J; 0.75J; 0.35J 2J; 1J; 0.5J
Pulse Duration: ~25 ns
Beam Diameter (1/e2): <10 mm <11 mm <12 mm <13 mm
Beam Divergence: Near Diffraction Limit
Coherence Length: >3 m
Max Repetition Rate: 5 and10 Hz 5 Hz
Spatial profile: Super-Gaussian Top-Hat Super-Gaussian Top-Hat
Laser Head Size: 1300 x 550 x 250 mm 1300 x 550 x 250 mm 1500 x 650 x 250 mm 1500 x 650 x 250 mm
Laser Head Weight: <65 Kg <65 Kg <75 Kg <75 Kg

Flash Tube Lifetime

(a) Oscillator: 5 x 107 shots 5 x 107 shots 5 x 107 shots 5 x 107 shots
(b) Amplifier 1: 5 x 107 shots 5 x 107 shots 5 x 107 shots 5 x 107 shots
(c) Amplifier 2: N/A N/A 5 x 107 shots 5 x 107 shots
Advised Operating Temperature: 20 C 20 C 20 C 20 C
Advised Operating Humidity: <60% non-condensing <60% non-condensing <60% non-condensing <60% non-condensing
Warranty Period: 12 months 12 months 12 months 12 months
Geola reserves the right to change specifications without notice