Role of resonant refractive-index grating in a nonreciprocal Nd:YAG self-pumped phase conjugator

Oleg Leonidovich Antipov; Dmitry Victorovich Chausov; Vladimir V. Yarovoy

doi:10.1117/12.417739

2 March 2001 Role of resonant refractive-index grating in a nonreciprocal Nd:YAG self-pumped phase conjugator

Oleg Leonidovich Antipov, Dmitry Victorovich Chausov, Vladimir V. Yarovoy

Proceedings Volume 4353, Laser Optics 2000: Control of Laser Beam Characteristics and Nonlinear Methods for Wavefront Control; (2001) https://doi.org/10.1117/12.417739
Event: Laser Optics 2000, 2000, St. Petersburg, Russian Federation

Abstract

We have studied both experimentally and numerically the role of resonant refractive index gratings in a self-pumped phase conjugate mirror based on an Nd:YAG amplifier with nonreciprocal feedback loop. In experiment the generation of the phase-conjugating laser was delayed with respect to recording of a holographic nonlinear mirror by an external beam. An increase in the phase-conjugate reflectivity at a delay time of about 3 microseconds was measured. The numerical calculation confirmed the additional contribution of the resonant refractive-index grating, which is formed in the pumped Nd:YAG crystal due to excitation of a higher-lying level of Nd³⁺ ions, to efficiency of phase conjugation.

Citation Download Citation

Oleg Leonidovich Antipov, Dmitry Victorovich Chausov, and Vladimir V. Yarovoy "Role of resonant refractive-index grating in a nonreciprocal Nd:YAG self-pumped phase conjugator", Proc. SPIE 4353, Laser Optics 2000: Control of Laser Beam Characteristics and Nonlinear Methods for Wavefront Control, (2 March 2001); https://doi.org/10.1117/12.417739

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