Increase in phase-conjugate reflectivity of a holographic Nd:YAG oscillator due to resonant refractive-index grating

被引:3
|
作者
Antipov, OL [1 ]
Chausov, DV [1 ]
Yarovoy, VV [1 ]
机构
[1] Russian Acad Sci, Inst Appl Phys, Nizhnii Novgorod 603600, Russia
基金
俄罗斯基础研究基金会;
关键词
phase conjugation; holographic gratings of refractive inbex and gain; Nd : YAC laser oscillator; cavity with nonlinear dynamic mirrors;
D O I
10.1016/S0030-4018(01)00996-8
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We have studied both experimentally and numerically the role of resonant refractive-index gratings (RIGs) 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 the recording of a holographic nonlinear mirror by an external beam. An increase in the phase-conjugate reflectivity at a delay time of about 3 mus was measured. The numerical calculation confirmed the additional contribution that the resonant RIG formed in a pumped Nd:YAG crystal because of excitation of a higher-lying level of Nd3+ ions make to the efficiency of phase conjugation. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:143 / 150
页数:8
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