Volume 53, Number 2, January 2001
|Page(s)||190 - 196|
|Section||Electromagnetism, optics, acoustics, heat transfer, classical mechanics, and fluid dynamics|
|Published online||01 December 2003|
Beam bending in photorefractive conjugators
Faculty of Sciences, University of Kragujevac
P.O. Box 60, 34000 Kragujevac, Yugoslavia
2 Institute of Physics - P.O. Box 57, 11001 Belgrade, Yugoslavia
3 Institute of Applied Physics, University of Technology Darmstadt Hochschulstr. 4a, 64289 Darmstadt, Germany
Accepted: 10 November 2000
Strong bending of laser beams in photorefractive conjugators is explained using the grating action method and Fermat's principle. A bent bidirectional optical path in the crystal consists of a finite number of kinks formed at the double-phase conjugate interaction regions, and straight segments in between. The device in operation strives to minimize the optical path length and maximize the coupling between beams.
PACS: 42.65.Hw – Phase conjugation, optical mixing, and photorefractive effect
© EDP Sciences, 2001
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