Title

2 μm laser damage and 3-6 μm optical parametric oscillation in AgGaSe2

Abstract

We have demonstrated a silver gallium selenide (AgGaSe2) based optical parametric oscillator (OPO) tunable from 2.75 μm to longer than 6 μm (limited by the measuring spectrometer) with greater than 1 mJ per pulse output energy in this range. The crystal used was 8×8×27 mm. We used a 60 mJ, near Gaussian, 2.09 μm 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.

Publication Date

7-28-1994

Publication Title

Proceedings of SPIE - The International Society for Optical Engineering

Volume

2114

Number of Pages

69-81

Document Type

Article; Proceedings Paper

Identifier

scopus

Personal Identifier

scopus

DOI Link

https://doi.org/10.1117/12.180911

Socpus ID

0028748434 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0028748434

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