HIGH ENERGY SLM Nd LASERS


There are two groups of our lasers - single shot and very high power lasers (till 5Joule in Green pulse) and a bit less powerful lasers that can operate in repetitive shots regime (till 10Hz at 1 joule).

 

High energy single shot Hybrid Nd:YLF/Phosphate Glass lasers
 

The GxJ series comprises a family of 3 lasers each of which is based on a Nd:YLF oscillator and one or more Nd:Phosphate Glass amplifiers. The lasers produce near-diffraction limited single-longitudinal mode (SLM) super-gaussian radiation in the nanosecond regime from 2 to 20 J per pulse (fundamental harmonic) and from 1 to 10 J per pulse in Green pulse. Design features include a highly stable passively Q-switched linear or ring-cavity oscillator, 2-pass amplification using high energy Brillouin phase conjugation and optional frequency conversion to the second or third harmonics by DKDP. In addition to constituting highly versatile laboratory tools all GxJ lasers are rigorously designed to meet the high standards required for display and technical holography or holographic interferometry applications.


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

-W--- Wireless remote control

 
Optical Schemes and Characteristics
 

Optical Scheme for G2J
Optical scheme for G5J

 

Typical energy distribution at d = 10m

Pilot Mode (All models)

 

High energy mode (G2J, E=2J)

Typical energy distribution - Near-Field

 

Typical energy distribution at d = 10m

High energy mode (G2J, E=2J)

Histogram showing shot to shot energy

stability for the GxJ oscillator (526.5nm)

Typical near field distribution

(G5J E=5J - 1053nm)

Typical temporal pulse shape

(G5J - 526.5nm)

  
  
  
  
Technical Parameters of the most popular models

 

Model G2J G5J
Output Wavelength: 1053 nm 526.5 nm 351 nm 1053 nm 526.5 nm 351 nm
Max Output Energy: 4J; 2J; 1J 10J; 5J; 2.5J
Pulse Duration: 30 ns 30 ns
Beam Diameter (1/e²): <10 mm <16 mm
Beam Divergence: Near Diffraction Limit Near Diffraction Limit
Coherence Length: >5 m >5 m
Repetition Rate   
(a) Pilot Mode: 0.5...2 Hz
(b) General Mode: 1 pulse per 3 mins
Laser Head Size: 1100 x 350 x 250 mm 1100 x 450 x 250 mm
Laser Head Weight: <28 Kg <47 Kg
Flash Tube Lifetime   
(a) Oscillator: 5 x 106 shots
(b) Amplifier 1: 5 x 106 shots
(c) Amplifier 2: N/A 5 x 106 shots
Advised Operating Temperature: 20°C 20°C
Advised Operating Humidity: <60% non-condensing <60% non-condensing
Warranty Period: 12 months 12 months
Geola reserves the right to change specifications without notice

 

Repetitive pulsed Nd:YAG Lasers
 

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

 

Optical Scheme for all GQA/B-xJ laser systems

 
Technical Parameters of the most popular models

 

ModelGQA-05JGQB-07JGQA-07J
Output Wavelength:1064nm; 532nm; 355nm
Max Output Energy:1J; 0.5J; 0.25J1.5J; 0.75J; 0.35J1.5J; 0.75J; 0.35J
Pulse Duration:~25 ns
Beam Diameter (1/e2):<10 mm<11 mm<12 mm
Beam Divergence:Near Diffraction Limit
Coherence Length:>3 m
Max Repetition Rate:5 and10 Hz5 Hz
Spatial profile:Super-GaussianTop-HatSuper-Gaussian
Flash Tube Lifetime5 x 107 shots
Advised Operating Temperature:

20 °C

Advised Operating Humidity:<60% non-condensing
Warranty Period:12 months
Geola reserves the right to change specifications without prior notice

 

© Geola Digital uab. Reproduction is illegal without prior agreement.

 

 
2009.01÷2009.12
Geola is manufacturing laser with 10 Joules energy in green for New South Wales University, Australia.
 
2009.03
Geola has manufactured and is installing in China a laser giving 80ns pulses at 660nm wavelength.
 
 2008
We were invited to report our inventions to conferences IWHM2008 in Japan, Holopack-Holoprint in Canada and Holoexpo in Moscow.