Four-wave mixer phase compensation performance

Details Four-wave mixer phase compensation performance Four-wave mixer phase compensation performance

Oct 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982spie..332..276p&link_type=abstract

IN: International Conference on Advanced Technology Optical Telescopes, Tucson, AZ, March 11-13, 1982, Proceedings (A83-30976 13

Physics

Optics

Adaptive Optics, Atmospheric Optics, Mixing Circuits, Optical Communication, Phase Conjugation, Signal Mixing, Telescopes, Atmospheric Turbulence, Nonlinear Optics, Signal To Noise Ratios

Scientific paper

A theoretical study was conducted on the performance of the four-wave mixer as an adaptive optical element in an atmospheric optical communication system. As an active element, the mixer introduced its own quantum noise, and therefore, this noise was considered in the system performance. This analysis is directly applicable to atmospheric compensation for large telescopes in that the four-wave mixer phase conjugation property will restore planar phase fronts to incoming aberrated waves. Results indicated that the average received noise power generated in the four-wave mixer was 60 dB below the average received signal power.

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