Laser damage of the nonlinear crystals CdSiP2 and ZnGeP2 studied with nanosecond pulses at 1064 and 2090 nm

Anne Hildenbrand; Christelle Kieleck; Aleksey Tyazhev; Georgi Marchev; Georg Stöppler; Marc Eichhorn; Peter G. Schunemann; Vladimir L. Panyutin; Valentin P. Petrov

doi:10.1117/1.OE.53.12.122511

21 August 2014 Laser damage of the nonlinear crystals CdSiP₂ and ZnGeP₂ studied with nanosecond pulses at 1064 and 2090 nm

Anne Hildenbrand, Christelle Kieleck, Aleksey Tyazhev, Georgi Marchev, Georg Stöppler, Marc Eichhorn, Peter G. Schunemann, Vladimir L. Panyutin, Valentin P. Petrov

Author Affiliations +

Optical Engineering, Vol. 53, Issue 12, 122511 (August 2014). https://doi.org/10.1117/1.OE.53.12.122511

Abstract

CdSiP ₂ (CSP) is a very promising nonlinear crystal for the mid-infrared spectral range with a nonlinear coefficient slightly larger than that of ZnGeP₂ (ZGP). In contrast to ZGP, CSP is phase-matchable and can be employed in 1.064-μm pumped optical parametric oscillators (OPOs) without two-photon absorption. Although low damage resistivity has been reported in such initial OPO tests of CSP, no reliable data on the damage threshold of uncoated CSP exists. In this work, we compare the damage resistivity of uncoated CSP with ZGP at two wavelengths, 2.09 μm (1 kHz, 21 ns) and 1.064 μm (100 Hz, 8 ns).

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Anne Hildenbrand, Christelle Kieleck, Aleksey Tyazhev, Georgi Marchev, Georg Stöppler, Marc Eichhorn, Peter G. Schunemann, Vladimir L. Panyutin, and Valentin P. Petrov "Laser damage of the nonlinear crystals CdSiP₂ and ZnGeP₂ studied with nanosecond pulses at 1064 and 2090 nm," Optical Engineering 53(12), 122511 (21 August 2014). https://doi.org/10.1117/1.OE.53.12.122511

Published: 21 August 2014

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