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Proceedings Paper

2-um laser damage and 3-6 um optical parametric oscillation in AgGaSe2
Author(s): Madhu A. Acharekar; L. H. Morton; Eric W. Van Stryland
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Paper 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.

Paper Details

Date Published: 28 July 1994
PDF: 13 pages
Proc. SPIE 2114, Laser-Induced Damage in Optical Materials: 1993, (28 July 1994); doi: 10.1117/12.180911
Show Author Affiliations
Madhu A. Acharekar, Schwartz Electro-Optics, Inc. (United States)
L. H. Morton, Schwartz Electro-Optics, Inc. (United States)
Eric W. Van Stryland, CREOL/Univ. of Central Florida (United States)


Published in SPIE Proceedings Vol. 2114:
Laser-Induced Damage in Optical Materials: 1993
Harold E. Bennett; Lloyd L. Chase; Arthur H. Guenther; Brian Emerson Newnam; M. J. Soileau, Editor(s)

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