Optical waveguides – Planar optical waveguide – Thin film optical waveguide
Reexamination Certificate
2008-09-30
2008-09-30
Leung, Quyen (Department: 2874)
Optical waveguides
Planar optical waveguide
Thin film optical waveguide
C385S037000
Reexamination Certificate
active
10595991
ABSTRACT:
A method of fabricating an optical waveguide (18) comprises providing a sample of lithium niobate (10) that has one or more periodically poled gratings made by electric field poling, applying a patterned surface layer of metallic zinc (16) to a z-face of the sample so that the layer (16) has a pattern corresponding to an intended pattern of waveguides (18) to be written int lithium niobate, and heating the sample to diffuse the metallic zinc (16) into the lithium niobate so as to form an optical waveguiding structure (18) within the sample.
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Gawith Corin Barry Edmund
Ming Lu
Smith Peter George Robin
Leung Quyen
Renner, Otto, Boisselle & Sklar, LLP.
University of Southampton
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