Optical waveguide and method of fabricating the same

Details Optical waveguide and method of fabricating the same Optical waveguide and method of fabricating the same

2006-09-12

2006-09-12

Kianni, Kaveh (Department: 2883)

Optical waveguides

Planar optical waveguide

C385S130000, C385S131000

Reexamination Certificate

active

07106937

ABSTRACT:
An optical waveguide comprises a silica substrate, a buffer layer formed on the silica substrate, cores formed on the buffer layer, and upper cladding layer formed on the buffer layer, covering the cores. The thermal expansion coefficients of the buffer layer and upper cladding layer are set to be substantially equal. As a result, the stresses in the cores are isotropic, effectively suppressing birefringence.

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