Method and apparatus for broadband chromatic dispersion slope tuning
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United States of America Patent
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Issued Date -
Nov 18, 2004
app pub date -
Mar 12, 2004
filing date -
Mar 18, 2003
priority date (Note) -
Abandoned
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Abstract
A method and system for dispersion compensation comprises a dispersion compensator (DC) for receiving a train of chromatically dispersed light pulses over a transmission fiber at multiple operational bandwidths and inducing on the train a compensatory dispersion having an adjustable broadband dispersion slope. In one approach, broadband dispersion slope is tuned using a pair of dispersion compensation blocks (DCBs) and mode hopping. In another approach, broadband dispersion slope is tuned using paired DCBs and symmetric intra-channel slope adjustment with mode mismatch. The DCBs are etalon-based. Slope tuning is induced by etalon tuning performed, by way of example, thermally or using microactuators.
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