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

Autor: A. A. Kharitonov, Irina Alekseeva, Vadim M. Polyakov, Andrey Yu. Rodionov, Vladimir Vitkin, Olga Dymshits, Vyacheslav A. Buchenkov, A. A. Mak, Alexander A. Zhilin
Rok vydání: 2015
Předmět:
Zdroj: SPIE Proceedings.
ISSN: 0277-786X
DOI: 10.1117/12.2077657
Popis: 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 Co 2 +:MgAl 2 O 4 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.
Databáze: OpenAIRE