Features of noncollinear parametric generation light in LiNbO3 crystal pumped by the fundamental radiation of Nd:YAG laser

N. V. Kondratiuk; A. A. Shagov; V. N. Belyi; A. Mashchenko; Yu. A. Bakhirkin; P. Philippow

doi:10.1117/12.420957

23 March 2001 Features of noncollinear parametric generation light in LiNbO₃ crystal pumped by the fundamental radiation of Nd:YAG laser

N. V. Kondratiuk, A. A. Shagov, V. N. Belyi, A. Mashchenko, Yu. A. Bakhirkin, P. Philippow

Author Affiliations +

Proceedings Volume 4350, Laser Optics 2000: Solid State Lasers; (2001) https://doi.org/10.1117/12.420957
Event: Laser Optics 2000, 2000, St. Petersburg, Russian Federation

Abstract

Theoretical and experimental studies the features of parametric generation light in LiNbO₃ with non-collinear phase matching from non-collinear angle i₂₃, i.e. angle between pump wave vector and resonant signal wave vector, are presented. It was shown that at the small angle i_{23<0,3 degrees} four nonlinear processes can simultaneously take place: these processes are non-collinear parametric conversion of the 1.0642 micrometers into the signal and an idler waves; second-harmonic generation of the signal; non- collinear difference-frequency mixing of the doubled signal and the idler; parametric conversion of the doubled signal into new pair: the signal and an idler waves. It is shown that the maximum efficiency of non-collinear OPO takes place for tangential phase-matching at (formula available in paper). Spectral broadening of the signal wave of LiNbO₃ non-collinear OPO was studied. Theoretically it is shown that the spectral bandwidth of the signal wave depends on the divergence of the signal wave.

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N. V. Kondratiuk, A. A. Shagov, V. N. Belyi, A. Mashchenko, Yu. A. Bakhirkin, and P. Philippow "Features of noncollinear parametric generation light in LiNbO₃ crystal pumped by the fundamental radiation of Nd:YAG laser", Proc. SPIE 4350, Laser Optics 2000: Solid State Lasers, (23 March 2001); https://doi.org/10.1117/12.420957

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