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US 2004/0105683 A1Published application
Polarization mode dispersion controller device and method for its operation
AssigneeAlcatel
InventorsHenning Bulow, Fred Buchali
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AssigneeAlcatel
InventorsHenning Bulow, Fred Buchali
Estimating the term…
A polarization mode dispersion (PMD) controller device for controlling the state of polarization of an optical light wave comprising a dispersion compensation unit (2; 25; 40) and an adaptation control unit (6; 28; 44), wherein the dispersion compensation unit (2; 25; 40) comprises a multitude of compensation stages processing the optical light wave, and wherein the adaptation control unit (6; 28; 44) controls the dispersion compensation unit (2; 25; 40) is characterized in that at least one feed-forward signal tap (4; 26a-26c, 73a-73c) is provided tapping the optical light wave inserted into one of the compensation stages, that the feed-forward signal(s) is(are) fed into a distortion analyzer unit (5; 27; 66) and that the distortion analyzer unit (5; 27; 66) provides the adaptation control unit (6; 28; 44) with information about the incoming optical light wave. It accelerates the adaptation speed and lowers the costs of a high-speed PMD controller device.
Polarization mode dispersion controller device for controlling the state of polarization of an optical light wave, in particular in a terabit optical network, comprising a dispersion compensation unit and an adaptation control unit, wherein the dispersion compensation unit is fed with an incoming optical light wave, wherein the dispersion compensation unit comprises a multitude of compensation stages processing the optical light wave, wherein the dispersion compensation unit provides an equalized optical light wave, and wherein the adaptation control unit controls the dispersion compensation unit,
Dependencies are inferred from the claim text.