Optical waveguides – Temporal optical modulation within an optical waveguide – Electro-optic
Reexamination Certificate
2005-04-12
2005-04-12
Ullah, Akm Enayet (Department: 2874)
Optical waveguides
Temporal optical modulation within an optical waveguide
Electro-optic
C385S027000, C385S005000, C385S009000, C385S014000, C359S244000, C359S237000, C359S279000
Reexamination Certificate
active
06879738
ABSTRACT:
An apparatus and method for modulating an optical beam. In one embodiment, a method according to embodiments of the present invention includes splitting first and second optical beams having first wavelength and second wavelengths, respectively, into split first and second optical beams that co-propagate through first and second waveguides disposed in semiconductor material. The first optical beam having a signal encoded thereon. Free charge carriers are generated in response to the signal encoded on the first optical beam in first and second multiple quantum well (MQW) p-i-n structures disposed in the first and second waveguides, respectively. The split second optical beams are phase shifted in response to the generated free charge carriers in the first and second MQW p-i-n structures. The phase shifted split second optical beams are combined to modulate the second optical beam.
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Blakely , Sokoloff, Taylor & Zafman LLP
Intel Corporation
Rojas Omar
Ullah Akm Enayet
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