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Rhodium-doped barium titanate for beam control of neodymium lasers

A Brignon and J-P Huignard

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Photorefractive properties of have been studied at 1064 nm using radiation from Nd:YAG lasers in both CW and repetitively pulsed regimes. Two-beam coupling and self-pumped phase conjugation are investigated at this wavelength for application to laser beam control. We thus investigate Q-switched Nd:YAG MOPA arrangements using as a phase-conjugate mirror. Alternatively, two-wave coupling is used to clean up the beam of a CW Nd:YAG laser. In both techniques, reasonable extraction efficiency and good correction of phase aberrations are demonstrated.


Dates

Issue 2 (March 1998)

Received 30 July 1997



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