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Proceedings Paper

Electrical compensation of FWM impairment by phase diversity detection via backward propagation
Author(s): Jing Liang; Katsushi Iwashita
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Paper Abstract

Nonlinear effects induced by Kerr effect in optical fibers result in the severe inter-channel crosstalk and degrade WDM transmission system performances. The electrical post-compensation through backward propagation is demonstrated for nonlinear impairment compensation of FWM via phase diversity detection, whose required bandwidth is less than that of heterodyne detection. By 20-km transmission of dispersion-shifted fiber (DSF), the generated FWM components with both of the original optical signals whose wavelength are around 1550nm are detected by phase diversity detection with one local oscillator. The detected signals are compensated by off-line signal processing using backward propagation, and after compensation there is over 6dB improved for the power difference between signals and FWMs.

Paper Details

Date Published: 1 December 2009
PDF: 7 pages
Proc. SPIE 7632, Optical Transmission Systems, Switching, and Subsystems VII, 76321E (1 December 2009); doi: 10.1117/12.851972
Show Author Affiliations
Jing Liang, Kochi Univ. of Technology (Japan)
Katsushi Iwashita, Kochi Univ. of Technology (Japan)

Published in SPIE Proceedings Vol. 7632:
Optical Transmission Systems, Switching, and Subsystems VII
Dominique Chiaroni, Editor(s)

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