Synthesis of unstable resonator output mirrors with phase front compensation

E. N. Kotlikov; V. N. Prokashev; E. V. Khonineva

doi:10.1117/12.417715

2 March 2001 Synthesis of unstable resonator output mirrors with phase front compensation

E. N. Kotlikov, V. N. Prokashev, E. V. Khonineva

Proceedings Volume 4353, Laser Optics 2000: Control of Laser Beam Characteristics and Nonlinear Methods for Wavefront Control; (2001) https://doi.org/10.1117/12.417715
Event: Laser Optics 2000, 2000, St. Petersburg, Russian Federation

Abstract

The phase distortion's influence on the radial luminosity of the laser radiation in distant zone occurred in mirrors with radial reflection coefficient has been investigated. It was shown that the radial luminosity diminished 1.5 - 2 times in comparison with mirrors characterized by constant or having spherical front radial phase's distribution along a mirror coating. New methods of radial phase distortion compensation are suggested for increasing of the radial luminosity of the phase front: (1) a deposition of additional layers with required radial thickness function, (2) a special choice of reflective coating's structure. Examples of the synthesis and practical making of output mirrors of CO₂-laser's unstable resonators are demonstrated. Due to the mirrors with phase distortion compensation of laser radiation the radial luminosity increased 3 time in comparison with the usual mirrors.

Citation Download Citation

E. N. Kotlikov, V. N. Prokashev, and E. V. Khonineva "Synthesis of unstable resonator output mirrors with phase front compensation", Proc. SPIE 4353, Laser Optics 2000: Control of Laser Beam Characteristics and Nonlinear Methods for Wavefront Control, (2 March 2001); https://doi.org/10.1117/12.417715

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