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Proceedings Paper

Phase Conjugate Interferometry
Author(s): W. H. Chen; P. J. Wang; P. C. San; P. Yeh
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Paper Abstract

A Michelson Interferometer using two photorefractive BaTiO3 crystals was studied in which one BaTiO3 was used to generate a self-pumped phase-conjugate wave. This conjugate wave forms theone arm of the interferometer and was also used as one of the pumping beams to pump the other BaTiO3 crystal which generated the other phase-conjugate wave through four-wave mixing. The output from the two arms are therefore both phase-conjugate waves. The interference pattern shows excellent spatial intensity distribution and is insensitive to the reciprocal noises and optical path length. Absolute phase of the phase conjugator was also measured which is a function of the crystal orientation and can be used to bias the interferometer by simply rotating the crystal to obtain an operating point of highest sensitivity and linear response.

Paper Details

Date Published: 22 April 1988
PDF: 4 pages
Proc. SPIE 0739, Phase Conjugation, Beam Combining, and Diagnostics, (22 April 1988); doi: 10.1117/12.939710
Show Author Affiliations
W. H. Chen, Chung Cheng Institute of Technology (Taiwan)
P. J. Wang, Chung Cheng Institute of Technology (Taiwan)
P. C. San, Chung Cheng Institute of Technology (Taiwan)
P. Yeh, Rockwell International Science Center (United States)


Published in SPIE Proceedings Vol. 0739:
Phase Conjugation, Beam Combining, and Diagnostics
Ira Abramowitz; Robert A. Fisher, Editor(s)

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