Adaptive Phase Correction of Optical Wave Distortions  in Random Inhomogeneous Media

doi:10.1117/3.2570042.ch1

Adaptive Phase Correction of Optical Wave Distortions in Random Inhomogeneous Media

Book: Atmospheric Adaptive Optics

Editor(s): Vladimir P. Lukin

Published: 1996

https://doi.org/10.1117/3.2570042.ch1

Abstract

For adaptive optical systems, as systems where optical feedback corrects distortions in the structure of an optical radiation field, one of the most important principles is that of reciprocity or optical reversibility. This principle is based on the identity of the fluctuations in the elementary waves along the forward and return paths. In this chapter this principle and its consequences will be used to establish the possibility of describing adaptive optical systems on the basis of a "reference" source introduced into the circuit to continuously monitor the parameters of the random inhomogeneous medium in which the radiation is propagating.