Optical waveguides – Planar optical waveguide – Thin film optical waveguide
Reexamination Certificate
2007-02-27
2007-02-27
Bovernick, Rodney (Department: 2874)
Optical waveguides
Planar optical waveguide
Thin film optical waveguide
C385S129000, C385S030000, C385S043000, C385S050000
Reexamination Certificate
active
10836641
ABSTRACT:
A multiple-core planar optical waveguide comprises: a substantially planar waveguide substrate; a lower waveguide core; an upper waveguide core; lower cladding between the substrate and the lower waveguide core; and upper cladding above the upper waveguide core. At least a portion the upper waveguide core is positioned above and substantially parallel to at least a portion of the lower waveguide core. The lower and upper claddings have refractive indices less than refractive indices of the lower and upper waveguide cores. The width of the lower waveguide core is substantially larger than its thickness along at least a portion of its length, and is substantially flat along that portion of its length, thereby yielding a substantially flat surface for forming at least a portion of the upper waveguide core.
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Blauvelt Henry A.
Paslaski Joel S.
Vernooy David W.
Alavi David S.
Bovernick Rodney
Christie Parker & Hale LLP
Rojas Omar
Xponent Photonics Inc
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