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Optical Engineering

Double phase conjugation in a liquid crystal at 1.5 μm for optical beam tracking
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Paper Abstract

Double phase conjugation (DPC) of two nearly opposite light waves has been theoretically and experimentally studied in a nematic liquid crystal with thermal optical nonlinearity. A model for wave coupling in the material with thermal nonlinearity has been analyzed for the DPC threshold conditions. DPC of two mutually incoherent laser beams has been demonstrated in a nematic liquid crystal (NLC) multilayer structure in good agreement with the model. An all-optical beam tracker consisting of such a structure has been built and demonstrated to compensate for beam/reflector jitter.

Paper Details

Date Published: 1 February 2007
PDF: 8 pages
Opt. Eng. 46(2) 024001 doi: 10.1117/1.2437783
Published in: Optical Engineering Volume 46, Issue 2
Show Author Affiliations
Alexander Sergeevich Koujelev, Canadian Space Agency (Canada)
Alexander E. Dudelzak, Canadian Space Agency (Canada)


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