Optical communications – Transmitter and receiver system – Including optical waveguide
Reexamination Certificate
2008-12-05
2010-06-01
Liu, Li (Department: 2613)
Optical communications
Transmitter and receiver system
Including optical waveguide
C398S148000, C398S149000, C398S158000, C398S159000, C398S162000, C398S025000, C398S029000, C398S208000
Reexamination Certificate
active
07729619
ABSTRACT:
In order to enhance dispersion control, the apparatus includes a dispersion controller; a quality index generator generating a quality index representing a quality of an optical signal output from the dispersion controller; and a searching unit searching for an amount of dispersion control applying to the dispersion controller which amount optimizes the quality index, wherein the searching unit includes a splitting-half searching unit roughly searching, in a splitting half method, a range in which dispersion is controllable by the dispersion controller for an amount of dispersion control such that the quality index generated by the quality index generator becomes preferable, and a sweep searching unit thoroughly searching, by sweeping, a limited range based on the amount of dispersion searched by the splitting-half searching unit for an amount of dispersion control that optimizes the quality index generated by the quality index generator.
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International Search Report mailed on Aug. 22, 2006 in connection with International Application No. PCT/JP2006/311346.
Noheji Kiyotoshi
Ooi Hiroki
Fujitsu Limited
Liu Li
Staas & Halsey , LLP
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