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1 April 2022 Comparison of ZGP and CSP for generation of high average power mid IR light
Kevin T. Zawilski, Peter Schunemann, Spencer Horton, Leonard Pomeranz, Lew Goldberg, Brian Cole, Jonathan Slagle, Kent Averett
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Proceedings Volume PC11985, Nonlinear Frequency Generation and Conversion: Materials and Devices XXI; PC1198502 (2022) https://doi.org/10.1117/12.2609222
Event: SPIE LASE, 2022, San Francisco, California, United States
Abstract
CdSiP2 (CSP) is a nonlinear optical crystal developed as a wider-band-gap analog of ZnGeP2 (ZGP) to enable mid-infrared generation. A direct comparison of the performance of ZGP and CSP crystals in mid-IR generating OPOs was performed with a 4 W Tm:YAP pump laser. CSP was shown to outperform ZGP in this configuration. A ring OPO using CSP with a 2.09 micron pump and 80W of power was used to generate 27 W of mid-IR light demonstrating CSP’s viability for high average power generation. An OPO seeded OPA was then used to directly compare CSP and ZGP with this same source as well as with an upgraded 140W source.
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Kevin T. Zawilski, Peter Schunemann, Spencer Horton, Leonard Pomeranz, Lew Goldberg, Brian Cole, Jonathan Slagle, and Kent Averett "Comparison of ZGP and CSP for generation of high average power mid IR light", Proc. SPIE PC11985, Nonlinear Frequency Generation and Conversion: Materials and Devices XXI, PC1198502 (1 April 2022); https://doi.org/10.1117/12.2609222
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KEYWORDS
Mid-IR
Crystals
Optical parametric oscillators
Laser crystals
Laser development
Laser sources
Optical semiconductors
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