Optical waveguides – Directional optical modulation within an optical waveguide – Electro-optic
Reexamination Certificate
2004-09-22
2008-10-14
Connelly-Cushwa, Michelle R. (Department: 2874)
Optical waveguides
Directional optical modulation within an optical waveguide
Electro-optic
Reexamination Certificate
active
07437026
ABSTRACT:
A device with optical switching between multiple layers of a semiconductor die is disclosed. In one aspect of the present invention, the disclosed apparatus includes a first semiconductor material layer of a semiconductor die. The first semiconductor material layer has a first optical waveguide. A second semiconductor material layer is also included in the semiconductor die. The second semiconductor material layer has a second optical waveguide. An insulating layer is disposed between the first and second semiconductor material layers such that there is an evanescent coupling between the first and second semiconductor material layers. There are modulated charge layers proximate to the insulating layer such that a coupling length of the evanescent coupling is controlled in response to the modulated charge layers.
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Nicolaescu Remus
Paniccia Mario J.
Blakely , Sokoloff, Taylor & Zafman LLP
Chu Chris
Connelly-Cushwa Michelle R.
Intel Corporation
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