Special mirrors for cw CO2 high-power lasers

Victor Rares Medianu; Iulian Gutu; Geo Georgescu; Mihail F. Lazarescu

doi:10.1117/12.312723

2 July 1998 Special mirrors for cw CO₂ high-power lasers

Victor Rares Medianu, Iulian Gutu, Geo Georgescu, Mihail F. Lazarescu

Proceedings Volume 3405, ROMOPTO '97: Fifth Conference on Optics; (1998) https://doi.org/10.1117/12.312723
Event: ROMOPTO '97: Fifth Conference on Optics, 1997, Bucharest, Romania

Abstract

`Special mirror' concept is presented as a `spare module' for a GaAs extracting mirror technological processed with GaAs thin films, mounted within two kinds of c.w. CO₂ laser resonators: U-type resonator (with optical pathlength L_r equals 4 m) and U- type folded resonator with V-discharge on each branch, reversal mirror provided (with the optical pathlength L_r equals 8 m), experimentally used to obtain good quality laser beam. The extracting mirror presents variable reflectivity, acting as a super-Gaussian mirror and working as an output coupler in the resonator, providing total compensation of the refractive index and of the small gain asymmetries.

Citation Download Citation

Victor Rares Medianu, Iulian Gutu, Geo Georgescu, and Mihail F. Lazarescu "Special mirrors for cw CO₂ high-power lasers", Proc. SPIE 3405, ROMOPTO '97: Fifth Conference on Optics, (2 July 1998); https://doi.org/10.1117/12.312723

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