Cross-Polarization Modulation in Polarization-Division Multiplex Transmission

We show theoretically and with the aid of computer simulations that the nonlinear depolarization induced by cross-polarization modulation leads to crosstalk between the polarization-division multiplex (PolDM) subchannels during their demultiplexing. This additive crosstalk can be approximated as add...

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Bibliographic Details
Published in:IEEE photonics technology letters 2010-04, Vol.22 (8), p.538-540
Main Authors: Winter, M., Setti, D., Petermann, K.
Format: Article
Language:English
Subjects:
Additive noise
Additives
Conferences
Cross-polarization modulation (XPolM)
Crosstalk
Demultiplexing
Fiber nonlinear optics
Fiber optics
Modulation
Multiplexing
Nonlinear optics
Optical crosstalk
optical fiber communication
Optical fiber polarization
Optical fibers
optical Kerr effect
Optical modulation
Optical polarization
Optical receivers
Polarization mode dispersion
polarization-division multiplex (PolDM)
Probes
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Summary:We show theoretically and with the aid of computer simulations that the nonlinear depolarization induced by cross-polarization modulation leads to crosstalk between the polarization-division multiplex (PolDM) subchannels during their demultiplexing. This additive crosstalk can be approximated as additive Gaussian noise, and we derive expressions to estimate its variance. It can lead to significant penalties of up to several decibels for PolDM transmission and must be properly accounted for. We also show why time-interleaving both subchannels can significantly reduce these penalties.
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2010.2042164