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.
Options
-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
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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 |
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Flash Tube Lifetime |
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| (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 |
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