Abstract

A fundamental requirement of coherent detection systems for optimal performance is the necessity for wavefront-matching of a received signal to that of a local oscillator. In light of the potential applications of lasers to remote sensing for manufacturing process control using laserbased ultrasound and the renewed interest in free-space optical communication networks, the optics community has been motivated to examine how one can improve the performance of coherent receivers in the face of highly aberrated signal beams.

© 2001 Optical Society of America