Optical communication device and optical device

Details Optical communication device and optical device Optical communication device and optical device

2007-09-13

2010-02-23

Wood, Kevin S (Department: 2874)

Optical waveguides

Temporal optical modulation within an optical waveguide

Electro-optic

C385S008000, C385S014000

Reexamination Certificate

active

07668409

ABSTRACT:
An optical communication device includes a substrate which has electro-optical effect; a first optical modulator which has a pair of waveguides formed in the substrate; a second optical modulator which has a pair of waveguides formed in the substrate; a waveguide coupler which is provided in an output of the first optical modulator, the waveguide coupler being able to couple and branch light propagating through the pair of waveguides of the first optical modulator; and a delay connecting section which gives differential delay to the output branched by the waveguide coupler and inputs the output to the pair of waveguide of the second optical modulator. As a result, the optical communication device and optical device in which insertion loss is reduced compared with the conventional optical modulator can be provided.

REFERENCES:
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patent: 7286727 (2007-10-01), Sugiyama
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Office Action mailed Jun. 23, 2006 in U.S. Appl. No. 11/101,485.
Office Action mailed Oct. 11, 2006 in U.S. Appl. No. 11/101,485.
Office Action mailed Mar. 30, 2007 in U.S. Appl. No. 11/101,485.
Advisory Action mailed Jun. 12, 2007 in U.S. Appl. No. 11/101,485.
Notice of Allowance and Fee(s) Due mailed Jun. 28, 2007 in U.S. Appl. No. 11/101,485.
Issue Notification mailed Oct. 3, 2007 in U.S. Appl. No. 11/101,485.

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