Optical switch and optical communication system

Details Optical switch and optical communication system Optical switch and optical communication system

2005-12-06

2005-12-06

Le, Thien M. (Department: 2876)

Optical waveguides

With optical coupler

Particular coupling structure

C385S016000, C385S021000

Reexamination Certificate

active

06973238

ABSTRACT:
A directional coupler type optical modulator with traveling-wave electrodes includes a first directional coupler region, a waveguide wave coupling region, a second directional coupler region, and a set of noncrossing traveling-wave electrodes disposed along the outside of the waveguides. The electrodes of each directional coupler are connected to the traveling-wave electrodes via air-bridges. The waveguide structures are of the P-I-N type having a common N-type conducting layer which provides delta-beta operation of the directional coupler, and both cross and bar states are controlled by a single input signal.

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