Abstract

A general theory of polarization and spatial information recovery by modal dispersal and phase conjugation is presented by means of a coherency matrix formalism. The theory is applied to a system that consists of a multimode modal-scrambling fiber terminated by a conventional phase-conjugate mirror that reflects only one polarization component. The degree of polarization and the signal-to-noise ratio of the reconstructed field are discussed as a function of input-beam launching conditions. Some experimental results are also shown for comparison with the theory.

© 1988 Optical Society of America

Theoretical model for modal dispersal of polarization information and its recovery by phase conjugation

Amnon Yariv, Yasuo Tomita, and Kazuo Kyuma
Opt. Lett. 11(12) 809-811 (1986)

Fidelity of polarization and spatial information recovery using a fiber-coupled phase-conjugate mirror

Yasuo Tomita, Ram Yahalom, and Amnon Yariv
Opt. Lett. 12(12) 1017-1019 (1987)

Nonlinear phase distortion in phase conjugation by degenerate four-wave mixing in Kerr media

S. Trillo and S. Wabnitz
J. Opt. Soc. Am. B 5(2) 195-201 (1988)

Theory of intracavity-pumped photorefractive phase-conjugate mirror

R. Yahalom and A. Yariv
J. Opt. Soc. Am. B 5(8) 1783-1787 (1988)

Phase conjugation to recover from modal dispersion in propagation through fibers

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J. Opt. Soc. Am. B 23(5) 812-816 (2006)