26 March 2002 Using SBS for improvement of output beam divergence in excimer laser systems
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Proceedings Volume 4747, International Conference on Atomic and Molecular Pulsed Lasers IV; (2002) https://doi.org/10.1117/12.460104
Event: International Conference on Atomic and Molecular Pulsed Lasers IV, 2001, Tomsk, Russian Federation
Abstract
Formation of a diffraction limited divergence and obtaining a high contrast of radiation in electric-discharge XeCl laser system due to SBS are investigated. Possibility of a correction of laser beam wave-front distortion on an astigmatic and a spherical aberrations and on a refractive coefficient non-uniformity in optics elements and atmosphere is shown. Correction of laser beam wave-front having the 20- fold distortion of diffraction limited angle using phase- conjugate Brillouin mirror allowed to obtain the initial angle of 2 X 10-5 rad divergence of laser beam. Use the threshold conditions of Brillouin scattering allowed to increase the XeCl laser radiation contrast from Pgen/Pnoise approximately 4 up to Pgen/Pnoise equals 106 - 107.
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Nikolai G. Ivanov, Nikolai G. Ivanov, Valery F. Losev, Valery F. Losev, Yury N. Panchenko, Yury N. Panchenko, } "Using SBS for improvement of output beam divergence in excimer laser systems", Proc. SPIE 4747, International Conference on Atomic and Molecular Pulsed Lasers IV, (26 March 2002); doi: 10.1117/12.460104; https://doi.org/10.1117/12.460104
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