Journal article
A general theory of two-wave mixing in nonlinear media
A general theory of two-wave mixing 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 two-wave mixing are derived based on the 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 the total intensity. Compared to the previous theory of two-wave mixing, the theory presented here is more general and the application of the theory to the photorefractive materials, Kerr media and semiconductor broad-area amplifiers are described.
Language: | English |
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Year: | 2009 |
Pages: | 1578-1584 |
ISSN: | 15208540 and 07403224 |
Types: | Journal article |
DOI: | 10.1364/JOSAB.26.001578 |
ORCIDs: | Chi, Mingjun and Petersen, Paul Michael |