Paper
28 July 1994 2-μm laser damage and 3-6 μm optical parametric oscillation in AgGaSe2
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Abstract
We have demonstrated a silver gallium selenide (AgGaSe2) based optical parametric oscillator (OPO) tunable from 2.75 micrometers to longer than 6 micrometers (limited by the measuring spectrometer) with greater than 1 mJ per pulse output energy in this range. The crystal used was 8 X 8 X 27 mm. We used a 60 mJ, near Gaussian, 2.09 micrometers chromium, thulium, holmium doped YAG (CTH:YAG) laser pump source, Q-switched by an AO modulator to produce approximately 50 ns pulses. As with most OPO's the output energy is limited by damage to the nonlinear crystal. We measured the damage threshold of both coated and uncoated surfaces to be approximately 0.9 J/cm2 and 1.2 J/cm2 respectively.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Madhu A. Acharekar, L. H. Morton Jr., and Eric W. Van Stryland "2-μm laser damage and 3-6 μm optical parametric oscillation in AgGaSe2", Proc. SPIE 2114, Laser-Induced Damage in Optical Materials: 1993, (28 July 1994); https://doi.org/10.1117/12.180911
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Cited by 2 scholarly publications.
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KEYWORDS
Optical parametric oscillators

Crystals

Silver selenogallate

Laser damage threshold

Nonlinear crystals

Surface finishing

Polishing

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