Optical waveguides – Temporal optical modulation within an optical waveguide – Electro-optic
Patent
1995-04-28
1996-07-02
Lee, John D.
Optical waveguides
Temporal optical modulation within an optical waveguide
Electro-optic
359321, 385130, 385145, G02B 6122
Patent
active
055331513
ABSTRACT:
Generally, the present invention is an optical waveguide circuit comprising a substrate 30, a non-organic waveguide channel 34 disposed within one or more cladding layers 32, 36 upon the substrate and an active cladding region comprising electro-optic 40, 43 or optically non-linear polymer material 46 adjacent to the waveguide channel wherein the phase of an optical signal within the waveguide channel may be modulated by controlling the index of refraction of the active cladding region. An embodiment of the present invention uses an inorganic optical waveguide 34 with a region of active organic cladding to provide a phase modulator for a Mach-Zender interferometer which can be used to implement high speed low loss switching of optical signals.
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Donaldson Richard L.
Kesterson James C.
Lee John D.
Petersen Bret J.
Texas Instruments Incorporated
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