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Conferences > CLEO_Europe > 1994 > CTuK > CTuK37

300-W Nd-YAG laser with reduced output beam divergence

S. A. Dimakov, A. V. Gorlanov, S I. Kliment'ev, L. V. Kovalchuk, I. B. Orlova, and N. A. Sventsitskaya

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Abstract

Usually power Nd-YAG lasers with stable resonators work in multimode operation and show divergence 20–100 times larger than the diffraction limit. Use of unstable resonators in such lasers is not trivial because of strong thermal lenses induced in active crystals. In Ref. 1 an unstable resonator for a laser based on two active rods was proposed and investigated. Output beam divergence in excess of the diffraction limit by 2 times with output power of 160 W was obtained.

© 1994 IEEE

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