Abstract
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.
| Original language | English |
|---|---|
| Journal | Optical Society of America. Journal B: Optical Physics |
| Volume | 26 |
| Issue number | 8 |
| Pages (from-to) | 1578-1584 |
| ISSN | 0740-3224 |
| DOIs | |
| Publication status | Published - 2009 |
Keywords
- semiconductor amplifier
- Kerr media
- Two wave mixing