A comparison of equalizers for compensating polarization-mode dispersion in 40-Gb/s optical systems

A system-level analysis of first-order polarization-mode dispersion (PMD) effects in a 40-Gbit/s optical system is used to compare quantitatively different electronic equalizer architectures as potential PMD compensators. It is found that a decision feedback equalizer (DFE) consisting of a 3-tap fee...

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Bibliographic Details
Main Authors: Sewter, J., Carusone, A.C.
Format: Conference Proceeding
Language:English
Subjects:
Decision feedback equalizers
Fiber nonlinear optics
High speed optical techniques
Nonlinear optics
Optical feedback
Optical fiber polarization
Optical fibers
Optical refraction
Optical variables control
Polarization mode dispersion
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Summary:A system-level analysis of first-order polarization-mode dispersion (PMD) effects in a 40-Gbit/s optical system is used to compare quantitatively different electronic equalizer architectures as potential PMD compensators. It is found that a decision feedback equalizer (DFE) consisting of a 3-tap feedforward equalizer (FFE) and a 1-tap feedback equalizer (FBE) is able to increase the useful length of an optical system by more than eight times when PMD is the dominant limiting factor.
ISSN:0271-4302
2158-1525
DOI:10.1109/ISCAS.2005.1464889