Q-switched regime of 3-um erbium lasers

Serban Georgescu; Voicu Lupei; Claudiu Hapenciuc

doi:10.1117/12.312647

2 July 1998 Q-switched regime of 3-μm erbium lasers

Serban Georgescu, Voicu Lupei, Claudiu Hapenciuc

Proceedings Volume 3405, ROMOPTO '97: Fifth Conference on Optics; (1998) https://doi.org/10.1117/12.312647
Event: ROMOPTO '97: Fifth Conference on Optics, 1997, Bucharest, Romania

Abstract

A mathematical model, based exclusively on spectroscopic data concerning radiative, non-radiative, and energy transfer processes, is proposed and used to simulate the Q-switch regime of three-micron Er:YAG laser. The connection between the main energy transfer mechanisms that make possible generation on the self-saturated transition ⁴I_11/2 yields ⁴I_13/2 (up- conversion from ⁴I_13/2 and ⁴I_11/2, cross- relaxation from ⁴S_3/2) and the giant pulse characteristics is discussed. The radiative as well as non- radiative losses during optical pumping and giant pulse generation are defined and evaluated. A particular attention is given to FTIR Q-switch which demonstrated real qualities for 3- micrometers Erbium lasers. The reasons responsible for experimental performances of Q-switched Er:YAG lasers inferior to those predicted by the mathematical modeling are analyzed.

Citation Download Citation

Serban Georgescu, Voicu Lupei, and Claudiu Hapenciuc "Q-switched regime of 3-μm erbium lasers", Proc. SPIE 3405, ROMOPTO '97: Fifth Conference on Optics, (2 July 1998); https://doi.org/10.1117/12.312647

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