Effective control algorithm for optical polarization mode...

Optical communications – Transmitter and receiver system – Including optical waveguide

Reexamination Certificate

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C398S158000, C398S159000, C398S161000, C398S162000, C398S152000, C398S065000, C398S081000, C398S029000, C398S202000, C398S205000, C398S208000, C398S209000, C385S011000, C385S024000, C385S027000, C385S031000, C385S122000, C385S123000, C385S014000, C385S124000

Reexamination Certificate

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07486895

ABSTRACT:
The present invention includes apparatus and method of a variable step size dithering control algorithm for polarization mode dispersion controllers (PMDCs). The dithering step size of the PCs is adjusted according to the feedback signal including degree of polarization (DOP).

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patent: 2007/0110451 (2007-05-01), Rasmussen et al.
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D. L. Peterson, Jr. et al., “Field Measurements of State of Polarization and PMD From a Tier-1 Carrier,” Proc. OFC'2004, paper F11, 2004.
C. Xie et al., “Two-Stage Optical Polarization Mode Dispersion Compensators for NRZ-DPSK Signals,” ITD-05-46284J, 2005.
P. J. Leo et al., “State of Polarization Changes: Classification and Measurement,” J. of Lightwave Tech., vol. 21, No. 10, Oct. 2003, pp. 2189-2193.
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