1 mJ single-rod fiber Er:glass laser for rangefinding

Andrey A. Mak; Vadim M. Polyakov; Vladimir V. Vitkin; Artem A. Kharitonov; Vyacheslav A. Buchenkov; Andrey Yu. Rodionov; Irina P. Alekseeva; Olga S. Dymshits; Alexander A. Zhilin

doi:10.1117/12.2077657

11 March 2015 1 mJ single-rod fiber Er:glass laser for rangefinding

Andrey A. Mak, Vadim M. Polyakov, Vladimir V. Vitkin, Artem A. Kharitonov, Vyacheslav A. Buchenkov, Andrey Yu. Rodionov, Irina P. Alekseeva, Olga S. Dymshits, Alexander A. Zhilin

Author Affiliations +

Proceedings Volume 9342, Solid State Lasers XXIV: Technology and Devices; 93421K (2015) https://doi.org/10.1117/12.2077657
Event: SPIE LASE, 2015, San Francisco, California, United States

Abstract

We demonstrate a compact Er:glass single-rod fiber laser for rangefinding with 1 mJ energy Q-switched at 1.54μm. Double-pass pumping with 16 W power and 5 ms pulse duration was used. Active medium was enveloped with diffuse reflector. Thus efficient output power operation achieved. Free-running mode output pulse energy was 12 mJ with a slope efficiency of 16%. Transparent glass-ceramics containing Co₂+:MgAl₂O₄ nanocrystals were selected as the optimal passive gate to ensure Q-switching in a temperature range and transverse mode selection. The Q-switch mode had steady operation at 1 Hz repetition rate with thermal effects playing no visible role.

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Andrey A. Mak, Vadim M. Polyakov, Vladimir V. Vitkin, Artem A. Kharitonov, Vyacheslav A. Buchenkov, Andrey Yu. Rodionov, Irina P. Alekseeva, Olga S. Dymshits, and Alexander A. Zhilin "1 mJ single-rod fiber Er:glass laser for rangefinding", Proc. SPIE 9342, Solid State Lasers XXIV: Technology and Devices, 93421K (11 March 2015); https://doi.org/10.1117/12.2077657

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