QAM optical modulators

Details QAM optical modulators QAM optical modulators

2007-12-31

2009-12-22

Rahll, Jerry T (Department: 2874)

Optical waveguides

Temporal optical modulation within an optical waveguide

Electro-optic

C359S245000, C359S577000

Reexamination Certificate

active

07636501

ABSTRACT:
An exemplary optical modulator includes an interferometer. The interferometer includes an input optical coupler, an output optical coupler, and two or more controllable optical waveguides. Each controllable optical waveguide connects the input optical coupler to the output optical coupler and has an electro-absorption modulator along a segment thereof. Two of the controllable optical waveguides are connected to transmit to an output of the output optical coupler light of substantially different maximum amplitude.

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