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Lasers

Pulsed Mode-locked Nd:YAG Laser

 

 

Compact Q-Switched Nd:YAG
oscillator with super gaussian resonator
Rod diameter : 6mm - 1 flashlamp - air/water heat exchanger

 

 

 

TEMoo oscillator - 1 or 2 amplifiers, ¥Õ6 or ¥Õ9.5mm - upgradable - different pulse durations.

Beam profile in near field
@1064 nm
YG901C-10(100mJ@1064nm, 10Hz)

Beam profile in far field
@1064 nm
YG901C-10(100mJ@1064nm, 10Hz)

 

 

 

 

   
1. rear mirror-dye flow cell
2. acousto-optic modulator
3. cavity length adjustment
4. oscillator laser head
5. output coupler (etalon)
6. pulse selector
7. pulse selection synchronizer
8. single-pass amplifier laser head
9. polarizer
10. quarter-wave plate
11. double-pass amplifier laser head
12. second harmonic generator
13. third or fourth harmonic generator

Service requirements :

240V - 16 to 20A - 50/60Hz
Water : 10 l/min, 1.5 to 3 bars,
10-25¡É 100,
110 and 200V available

 

 

 

 

 

 

 

 

 

 

Pulse duration : measured with an autocorrelator at FWHM. 50,100 or 200 ps are also available.
Divergence : Full angle at 1/e2 of the peak, for the nominal beam diameter
Contrast : energy of peak pulse with respect to residual pulse
Energy stability : rms
Pointing stability : measured by Spiricon LBA-100, rms, on 200 pulses at the focal plane of a 1m focus lens
Jitter : with respect to flashlamp trigger, at half maximum of 500 accumulated shots, active/passive operation

 

 

 

Single pulse selection

Active-passive mode-locking
1. Dye cell mirror
2. Acousto-optic mode-locker
3. Delay prisms
4. Convex lens

Main driver electronics
1. AO frequency
2. AO modulator adjustments
3. Pulse selector switch
4. AO modulator switch