Chromatic dispersion compensation control method and apparatus

Details Chromatic dispersion compensation control method and apparatus Chromatic dispersion compensation control method and apparatus

2007-12-05

2010-10-12

Phan, Hanh (Department: 2613)

Optical communications

Transmitter and receiver system

Including optical waveguide

C398S081000, C398S158000, C398S159000

Reexamination Certificate

active

07813647

ABSTRACT:
A chromatic dispersion compensation control method for compensating the chromatic dispersion of an optical transmission path with a variable dispersion compensator inserted in the optical transmission path is disclosed. The method includes a transmitter inserting a fixed data sequence in the rewritable area of a transmission data sequence to be transmitted and transmitting the transmission data sequence to the optical transmission path, the fixed data sequence containing alternating 0-1 data formed of alternating 0s and 1s and alternating 0 series-1 series data formed of alternating series of 0s and 1s; and a receiver determining a direction to increase or decrease the dispersion compensation of the variable dispersion compensator based on the number of error occurrences in the alternating 0-1 data and the number of error occurrences in the alternating 0 series-1 series data, and variably controlling the dispersion compensation of the variable dispersion compensator in accordance with the determined direction.

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International Search Report (PCT/ISA/210) mailed Jul. 26, 2005 for International Application PCT/JP2005/011496.

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