Room temperature, 55 mJ/pulse, gain-switched Fe:ZnSe laser system pumped by radiation of electro-optically Q-switched Cr:Er:YSGG MOPA

D. Martyshkin; V. Fedorov; S. J. Hamlin; S. Tochitsky; S. Mirov

doi:10.1117/12.3003481

13 March 2024 Room temperature, 55 mJ/pulse, gain-switched Fe:ZnSe laser system pumped by radiation of electro-optically Q-switched Cr:Er:YSGG MOPA

D. Martyshkin, V. Fedorov, S. J. Hamlin, S. Tochitsky, S. Mirov

Author Affiliations +

Proceedings Volume PC12864, Solid State Lasers XXXIII: Technology and Devices; PC1286403 (2024) https://doi.org/10.1117/12.3003481
Event: SPIE LASE, 2024, San Francisco, California, United States

Abstract

We report 3.8-5.0 μm tunable three-stage double-pass Fe:ZnSe solid-state MOPA with approximately 30-fold overall amplification coefficient operating at RT and pumped by EO Q-switched Cr:Er:YSGG laser system radiation. EO Q-switched Cr:Er:YSGG MOPA with the Q-switch based on a La3Ga5SiO14 crystal providing 90 ns pulses with energy up to 350 mJ at a 3 Hz repetition rate was used as a pump source. The maximum output energies of Fe:ZnSe system in 90 ns pulses exceeded 55 mJ at 4.4 μm under 220 mJ of pumping. The pulse jitter was measured to be ⪅8 ns and was limited by the Er:Cr:YSGG laser jitter.

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Citation Download Citation

D. Martyshkin, V. Fedorov, S. J. Hamlin, S. Tochitsky, and S. Mirov "Room temperature, 55 mJ/pulse, gain-switched Fe:ZnSe laser system pumped by radiation of electro-optically Q-switched Cr:Er:YSGG MOPA", Proc. SPIE PC12864, Solid State Lasers XXXIII: Technology and Devices, PC1286403 (13 March 2024); https://doi.org/10.1117/12.3003481

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