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Proceedings Paper

Optical linking mobile carriers by means of phase conjugation in photorefractive crystals
Author(s): A. V. Mamaev; Vladimir V. Shkunov
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Paper 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.

Paper Details

Date Published: 11 April 1996
PDF: 13 pages
Proc. SPIE 2771, Laser Optics '95: Phase Conjugation and Adaptive Optics, (11 April 1996); doi: 10.1117/12.238062
Show Author Affiliations
A. V. Mamaev, Institute for Problems in Mechanics (Russia)
Vladimir V. Shkunov, Institute for Problems in Mechanics (Russia)

Published in SPIE Proceedings Vol. 2771:
Laser Optics '95: Phase Conjugation and Adaptive Optics
Vladimir E. Sherstobitov, Editor(s)

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