Paper
23 February 1989 Applications Of Optical Phase Conjugation To Coherent Communications
Yves Champagne, Michel Piche, Nathalie McCarthy
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Abstract
We describe an all-optical method to transform a weak incident optical beam with constant amplitude and pulsated phase jumps into an amplified optical beam with amplitude modulation. The proposed method uses either the reflected or the transmitted beams by a phase-conjugate mirror. Our analysis assumes that the operation of optical phase conjugation is due to nearly degenerate four-wave mixing where two monochromatic pump fields are mixed in a Kerr-like material with the incident field, producing a transmitted field and a "phase-conjugate" reflected field. Numerical results show that the depth of amplitude modulation decreases with the gain of the phase-conjugate mirror, while the duration of the amplitude pulses increases along with that gain. An original configuration with a single output beam is proposed. The equivalence of the device with coherent detection schemes is discussed.
© (1989) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Yves Champagne, Michel Piche, and Nathalie McCarthy "Applications Of Optical Phase Conjugation To Coherent Communications", Proc. SPIE 0988, Components for Fiber Optic Applications III and Coherent Lightwave Communications, (23 February 1989); https://doi.org/10.1117/12.959774
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KEYWORDS
Phase conjugation

Mirrors

Phase shift keying

Optical communications

Amplitude modulation

Modulation

Fiber optic communications

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