Polarization properties of optical phase conjugation by two-photon resonant degenerate four-wave mixing


Journal Article

We develop a semiclassical theory of the polarization properties of phase conjugation by two-photon resonant degenerate four-wave mixing. The theory includes the effects of saturation by the pump waves. We solve the density-matrix equations of motion in steady state for a nonlinear medium consisting of stationary atoms with a ground and excited state connected by two-photon transitions. As an illustration of the general results, we consider an S0S0 two-photon transition, which is known to lead to perfect polarization conjugation in the limit of third-order theory. We show that the fidelity of the polarization-conjugation process is degraded for excessively large pump intensities. The degradation can occur both due to transfer of population to the excited state and due to nonresonant Stark shifts. Theoretical results are compared to those of a recent experiment [Malcuit, Gauthier, and Boyd, Opt. Lett. 13, 663 (1988)]. © 1989 The American Physical Society.

Full Text

Duke Authors

Cited Authors

  • Kauranen, M; Gauthier, DJ; Malcuit, MS; Boyd, RW

Published Date

  • January 1, 1989

Published In

Volume / Issue

  • 40 / 4

Start / End Page

  • 1908 - 1917

International Standard Serial Number (ISSN)

  • 1050-2947

Digital Object Identifier (DOI)

  • 10.1103/PhysRevA.40.1908

Citation Source

  • Scopus