Methods and apparatus for compensating chromatic and polarization mode dispersion
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United States of America Patent
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Issued Date -
Oct 11, 2001
app pub date -
Mar 5, 2001
filing date -
Mar 3, 2000
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Integrated and stand-alone methods and apparatus for adaptively compensating for DGD, SOPMD, and CD in optical communication networks are provided. One apparatus includes at least three optical compensators that are optically coupled together in series and a feedback controller. Each compensator includes a variable optical controller that is optically coupled in series to a birefringent element. An optical communication network is also provided that at least includes an optical transmission line, at least two network terminals, and at least one static compensation module. At least one terminal includes an optical demultiplexer that is coupled to that element, a plurality of .lambda.-compensators, and, optionally, a static optical dispersion compensation element.
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