250-W average-power Nd:YAG laser with self-adaptive cavity completed by dynamic refractive-index gratings

A high average power laser oscillator with a cavity completed by a nonlinear mirror formed by refractive index gratings which accompany population gratings induced in Nd:YAG laser crystals by generating beams themselves is investigated numerically and experimentally. The role of different noise sour...

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Bibliographic Details
Published in:IEEE journal of quantum electronics 2001-05, Vol.37 (5), p.716-724
Main Authors: Antipov, O.L., Chausov, D.V., Kuzhelev, A.S., Vorob'ev, V.A., Zinoviev, A.P.
Format: Article
Language:English
Subjects:
Beams (radiation)
Crystals
Distortion
Gratings
Holes
Laser beams
Laser noise
Lasers
Mirrors
Nonlinear distortion
Nonlinear dynamics
Nonlinearity
Oscillators
Power generation
Power lasers
Refractive index
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Summary:A high average power laser oscillator with a cavity completed by a nonlinear mirror formed by refractive index gratings which accompany population gratings induced in Nd:YAG laser crystals by generating beams themselves is investigated numerically and experimentally. The role of different noise sources at the initial stage of nonlinear cavity formation is studied. The adaptation of the cavity formed by nonlinear dynamic mirrors to intracavity distortions is demonstrated. The generation of beams with average power up to 250 W, near-diffraction-limited divergence, and long coherence length has been achieved.
ISSN:0018-9197
1558-1713
DOI:10.1109/3.918586