Double phase-conjugate mirror: two-dimensional analysis

Abstract

The double phase-conjugate mirror (DPCM) is an oscillator in the framework of a one-dimensional theoretical model. The results of a more consistent two-dimensional approach qualitatively differ from those of a one-dimensional analysis, indicating that the DPCM is a convective amplifier. Predictions of both one- and two-dimensional models are presented and compared. A correct physical picture of scattering development is revealed, and transverse profiles of scattered beams and the dynamics of nonlinear reflectivity are calculated.