Journal of Nonlinear Optical Physics & Materials

AMPLIFICATION AND PHASE CONJUGATION OF WEAK SIGNALS

Oleg V. Kulagin, Guerman A. Pasmanik, Alexander A. Shilov

Published Jan 1, 1993• 1 citation

Abstract

The results of the study on phase conjugation of weak optical signals with the energy of units of photons are considered. Basic concepts of a semi-classical theoretical approach to describe amplification and phase conjugation (PC) of such signals are presented. A review is given on the experimental investigations that allowed for reaching a limit (about 1 photon for a mode) sensitivity of optical systems with PC-mirrors for a large (~ 105) number of resolution elements. High-sensitivity PC-mirror optical systems are demonstrated for a variety of applications.

DOI: 10.1142/s021819919300005x

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