Optical communications – Transmitter and receiver system – Including optical waveguide
Reexamination Certificate
2007-10-30
2007-10-30
Vanderpuye, Kenneth (Department: 2613)
Optical communications
Transmitter and receiver system
Including optical waveguide
C398S158000, C398S149000
Reexamination Certificate
active
10715557
ABSTRACT:
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.
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Buchali Fred
Bülow Henning
Alcatel
Le Thi Q.
Sughrue Mion Pllc.
Vanderpuye Kenneth
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