Optical linking mobile carriers by means of phase conjugation in photorefractive crystals

A. V. Mamaev; Vladimir V. Shkunov

doi:10.1117/12.238062

11 April 1996 Optical linking mobile carriers by means of phase conjugation in photorefractive crystals

A. V. Mamaev, Vladimir V. Shkunov

Proceedings Volume 2771, Laser Optics '95: Phase Conjugation and Adaptive Optics; (1996) https://doi.org/10.1117/12.238062
Event: Laser Optics '95, 1995, St. Petersburg, Russian Federation

Abstract

Principal possibility of real-time low loss optical link between moving objects by means of aberrations cancelling phase conjugation (PC) technique is theoretically analyzed and experimentally verified using photorefractive SBN crystals. Angular tracking rate up to 0.5 degrees per second at 0.2 W light pumping power had been demonstrated in visible. Technical characteristics which are expected for real-time tracking via adaptive PC links are estimated in comparison with conventional electronics tracking systems. It is shown that a combined scheme, which incorporates an additional photorefractive double PC mirror for fine cancelling errors of the basic tracking system, seems to be the most promising one and would result in significant enhancement of a tracking accuracy. PC link between the Earth based multi- channel transmitter and the array of retroreflectors as a passive retranslator which is located at a geostationary orbit and distributes multiplexed signals of all the channels among many users at the Earth is proposed and discussed.

Citation Download Citation

A. V. Mamaev and Vladimir V. Shkunov "Optical linking mobile carriers by means of phase conjugation in photorefractive crystals", Proc. SPIE 2771, Laser Optics '95: Phase Conjugation and Adaptive Optics, (11 April 1996); https://doi.org/10.1117/12.238062

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