Optical waveguides – Planar optical waveguide – Thin film optical waveguide
Reexamination Certificate
2008-03-04
2008-03-04
Song, Sarah (Department: 2874)
Optical waveguides
Planar optical waveguide
Thin film optical waveguide
C385S140000, C385S014000, C372S003000
Reexamination Certificate
active
07340143
ABSTRACT:
A semiconductor-based optical amplifier/attenuator is disclosed. An apparatus according to aspects of the present invention includes an optical waveguide disposed in semiconductor material. A first optical beam having a first wavelength is to be directed through the optical waveguide. The optical waveguide is optically coupled to receive a pump optical beam having a pump wavelength. The pump optical beam also has a power level sufficient to amplify the first optical beam via stimulated Raman scattering (SRS) in the optical waveguide. A diode structure is disposed in the optical waveguide. The diode structure coupled is to be selectively biased to selectively control free carrier lifetimes of the free carriers in the optical waveguide. This enables to selective amplification or attenuation of the first optical beam output from the optical waveguide.
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Jones Richard
Koehl Sean M.
Blakely , Sokoloff, Taylor & Zafman LLP
Intel Corporation
Song Sarah
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