High speed optical phase modulator

Details High speed optical phase modulator High speed optical phase modulator

2008-05-21

2009-06-02

Pak, Sung H (Department: 2874)

Optical waveguides

Temporal optical modulation within an optical waveguide

Electro-optic

C385S002000, C385S040000

Reexamination Certificate

active

07542630

ABSTRACT:
An optical device includes a phase modulator having a waveguide on a substrate. The phase modulator also includes an n-type region having a proximity to a p-type region that causes formation of a depletion region when a bias is not applied to the modulator. The depletion region is at least partially positioned in the light signal carrying region of the waveguide. The phase modulator is tuned by applying a reverse bias to the phase modulator. The reverse bias changes the size of the depletion region.

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