Noncritically phase-matched self-difference frequency generation using transition-metal doped chalcogenides

Kentaro Miyata; Masaki Yumoto; Yasushi Kawata; Satoshi Wada; Shinichi Imai

doi:10.1117/12.2653039

14 March 2023 Noncritically phase-matched self-difference frequency generation using transition-metal doped chalcogenides

Kentaro Miyata, Masaki Yumoto, Yasushi Kawata, Satoshi Wada, Shinichi Imai

Author Affiliations +

Proceedings Volume 12405, Nonlinear Frequency Generation and Conversion: Materials and Devices XXII; 1240507 (2023) https://doi.org/10.1117/12.2653039
Event: SPIE LASE, 2023, San Francisco, California, United States

Abstract

We revisit self-difference frequency generation –– nonlinear mixing of the lasing field induced by stimulated emission with its pump source in a laser gain medium –– by employing transition-metal doped chalcogenides along with the standard birefringent phase-matching techniques for mid-infrared applications. The use of an a-cut Cr:CdSe crystal under the noncritical PM condition has significantly improved the conversion efficiency compared to the previous results obtained in a Cr:ZnSe slab with Fresnel phase-matching. To generalize the self-mixing design, the phase-matching conditions of solid solutions CdS_xSe_1-x doped with Cr²⁺ and Fe²⁺ ions are characterized in the mid-infrared spectral range.

Conference Presentation

Citation Download Citation

Kentaro Miyata, Masaki Yumoto, Yasushi Kawata, Satoshi Wada, and Shinichi Imai "Noncritically phase-matched self-difference frequency generation using transition-metal doped chalcogenides", Proc. SPIE 12405, Nonlinear Frequency Generation and Conversion: Materials and Devices XXII, 1240507 (14 March 2023); https://doi.org/10.1117/12.2653039

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