High-power CO2 laser with VRM unstable resonator: beam quality control and characterization

Nikolai A. Generalov; Nikolai G. Solov'yov; Mikhail Yu. Yakimov; Vladimir P. Zimakov

doi:10.1117/12.394123

27 July 2000 High-power CO₂ laser with VRM unstable resonator: beam quality control and characterization

Nikolai A. Generalov, Nikolai G. Solov'yov, Mikhail Yu. Yakimov, Vladimir P. Zimakov

Proceedings Volume 4165, Progress in Research and Development of High-Power Industrial CO2 Lasers; (2000) https://doi.org/10.1117/12.394123
Event: Progress in Research and Development of High-Power Industrial CO2 Lasers, 2000, Russia, Russian Federation

Abstract

Variable reflectivity output mirros (VRM) provide a good possibility for output coupling of diffraction limited beams both from gas and solid state laser media. A set of VRM resonators was designed and tested in fast-transverse-flow CO₂ laser. It was shown that the phase profile of the output beam in VRM resonator may be improved by the appropriate design of the VRM output coupler. The results of experimental and theoretical studies of unstable VRM resonators operation in CW CO₂ lasers with output power up to 3 kW are presented. It was shown that beam generated in VRM unstable resonator may be characterized correctly in terms of M² and K factors.

Citation Download Citation

Nikolai A. Generalov, Nikolai G. Solov'yov, Mikhail Yu. Yakimov, and Vladimir P. Zimakov "High-power CO₂ laser with VRM unstable resonator: beam quality control and characterization", Proc. SPIE 4165, Progress in Research and Development of High-Power Industrial CO2 Lasers, (27 July 2000); https://doi.org/10.1117/12.394123

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