Optical waveguides – Integrated optical circuit
Reexamination Certificate
2006-10-31
2006-10-31
Font, Frank G. (Department: 2883)
Optical waveguides
Integrated optical circuit
C372S050121
Reexamination Certificate
active
07130499
ABSTRACT:
An optical communication module comprises a plurality of monolithic semiconductor transmitter photonic integrated circuit (TxPIC) chips each having a plurality of optical signal channels approximating wavelengths on a standardized grid. Each of the channels comprises a laser source optically coupled to an electro-optic modulator. The outputs of the electro-optic modulators are coupled to inputs of an optical combiner integrated on each of the chips for combining the inputs to form a combined signal output from the chip. A second optical combiner combines the combined signal outputs from the TxPICs to form a combined optical signal group output. A booster optical amplifier is optically coupled to the second optical combiner to receive and amplify the combined optical signal group output from the second optical combiner.
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Chiang Ting-Kuang
Dominic Vincent G.
Grubb Stephen G.
Mitchell Matthew L.
Taylor Robert B.
Carothers, Jr. W. Douglas
Font Frank G.
Hughes James P.
Infinera Corporation
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