Tunable dispersion compensator and method of manufacturing...

Details Tunable dispersion compensator and method of manufacturing... Tunable dispersion compensator and method of manufacturing...

2008-05-27

2008-05-27

Healy, Brian (Department: 2883)

Optical waveguides

With optical coupler

Input/output coupler

C385S001000, C385S004000, C385S008000, C385S010000, C385S014000, C385S015000, C385S031000, C385S039000, C385S040000, C398S079000, C398S080000, C398S081000

Reexamination Certificate

active

07379640

ABSTRACT:
A tunable dispersion compensator in which a heater portion can be easily constructed to reduce cost. A tunable dispersion compensator includes: an optical fiber having a grating portion; a heating unit for heating the grating portion to apply a temperature distribution to the grating portion; and a control unit for controlling the temperature distribution applied by the heating unit to control the group delay time characteristic of the grating portion. The heating unit includes: a heater including a single conductor having electrical resistors and which extends in a longitudinal direction of the grating portion over at least the entire length of the grating portion; and wirings electrically connected with the heater in respective positions along the longitudinal direction. The control unit supplies a voltage to each of the wirings.

REFERENCES:
patent: 6275629 (2001-08-01), Eggleton et al.
patent: 6643430 (2003-11-01), Matsumoto et al.
patent: 6778734 (2004-08-01), Baldwin et al.
patent: 2003/0123800 (2003-07-01), Hashimoto et al.
patent: 2004/0017972 (2004-01-01), Lelievre et al.
patent: 2003-195234 (2003-07-01), None
patent: 2004-191510 (2004-07-01), None
patent: 2004-258462 (2004-09-01), None
patent: 2004-334052 (2004-11-01), None

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