Method and apparatus for reducing nonlinear penalties by proper arrangement of the dispersion map in an optical communication system
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United States of America Patent
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Oct 30, 2001
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N/A
app pub date -
Dec 1, 1998
filing date -
Dec 1, 1998
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Abstract
A method and apparatus is provided for compensating for dispersion in a wavelength division multiplexed (WDM) optical communication system. The system includes a transmitting and receiving terminal for transmitting and receiving, respectively, an optical signal having a plurality of channels, and an optical fiber transmission path coupling the first and second terminals. The fiber transmission path has a dispersion substantially equal to zero for a selected channel, positive dispersion for a first set of channels, and negative dispersion for a second set of channels. The method begins by providing positive dispersion compensation to the second set of channels at one of the terminals. Negative dispersion compensation is provided to the first set of channels, also at one of the terminals.
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