Method and apparatus for adjusting filter device

Details Method and apparatus for adjusting filter device Method and apparatus for adjusting filter device

2006-12-05

2006-12-05

Phan, Hanh (Department: 2613)

Optical communications

Transmitter and receiver system

Including optical waveguide

C398S148000, C398S149000, C398S158000, C398S159000, C398S081000, C398S084000, C398S085000, C398S087000, C398S025000, C398S026000, C398S027000, C398S033000, C398S038000, C398S192000, C398S195000, C398S196000, C398S208000, C398S209000, C398S213000, C398S214000, C398S162000, C398S093000, C398S094000, C398S095000, C385S024000, C385S037000

Reexamination Certificate

active

07146107

ABSTRACT:
A tunable dispersion compensator whose passband center wavelength changes when the amount of dispersion compensation is changed is suitably adjusted. The relationship between temperature for keeping the center wavelength constant and the amount of dispersion compensation is stored in advance. After controlling the amount of dispersion compensation to achieve best or optimum transmission quality, the amount of dispersion compensation is converted into temperature in accordance with the stored relationship and, based on that, the temperature is controlled to keep the center wavelength constant.

REFERENCES:
patent: 6871024 (2005-03-01), Nishimoto et al.
patent: 6925262 (2005-08-01), Ooi et al.
patent: 2001/0028759 (2001-10-01), Cao
patent: 2002/0006257 (2002-01-01), Danziger et al.
patent: 1 265 086 (2002-12-01), None
patent: 1 273 937 (2003-01-01), None
patent: 5-268108 (1993-10-01), None
European Search Report dated Mar. 23, 2006 of Application No. EP 03 02 9212.

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