PMD Equalization
Henning,
In your presentation to the 802.3ae September Interim on circuit
implementation
of a polarization mode dispersion (PMD) equalizer you showed pulse responses
for 100km lengths of single mode fiber. Did you also characterize the PMD of
these fibers using an interferometric method [ref. 1] or the widely-used
Stokes
Parameter Method [ref. 2]? Can you give some additional information on the
type
of fiber used in this work? The magnitude of PMD seems larger than expected.
Thank you,
Chris
[1] Namihira, Y. and Wakabayashi, H., "Fiber Length Dependence of
Polarization
Mode Dispersion Measurements on Long-Length Optical Fibers and Installed
Optical Submarine Cables", J. Opt. Communications, 12, 1, p. 2-9 (1991).
[2] Poole, C. D., et. al., "Polarization Dispersion and Principal States in
a
147-km Undersea Lightwave Cable", J. Lightwave Tech., v.6, no.7, p. 1185-
90 (1988).
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Christopher J. Madden, Ph.D. 3900 Freedom Circle, Suite
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Principal Engineer/Scientist Santa Clara, CA
95054
Fiber-Optic Data Communications Phone:
408.565.6857
Tripath Technology Inc. Fax:
408.565.6850
http://www.tripath.com
cmadden@xxxxxxxxxxx
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