A general theory of two-wave mixing in nonlinear media

被引:27
|
作者
Chi, Mingjun [1 ]
Huignard, Jean-Pierre [2 ]
Petersen, Paul Michael [1 ]
机构
[1] Tech Univ Denmark, Dept Photon Engn, DK-4000 Roskilde, Denmark
[2] Thales Res & Technol, RD 128, F-91767 Palaiseau, France
关键词
AREA SEMICONDUCTOR AMPLIFIER; BI12SIO20; CRYSTALS; SELF-OSCILLATION; GAIN; INSTABILITIES; AMPLIFICATION;
D O I
10.1364/JOSAB.26.001578
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
A general theory of two-wave mixing (TWM) in nonlinear media is presented. Assuming a gain (or absorption) grating and a refractive index grating are generated because of the nonlinear process in a nonlinear medium, the coupled-wave equations of TWM are derived based on Maxwell's wave equation. The coupled-wave equations can be decoupled as coupled equations for the intensity and coupled equations for the phase of both beams, and these two sets of coupled equations can be solved analytically by using average total intensity in the medium instead of using the total intensity. Compared with the previous theory of TWM, the theory presented here is more general, and the applications of the theory to photorefractive materials, Kerr media, and semiconductor broad-area amplifiers are described. (C) 2009 Optical Society of America
引用
收藏
页码:1578 / 1584
页数:7
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