Optical waveguide substrate and harmonics generating device

Details Optical waveguide substrate and harmonics generating device Optical waveguide substrate and harmonics generating device

2008-05-13

2008-05-13

Song, Sarah (Department: 2874)

Optical waveguides

Planar optical waveguide

Reexamination Certificate

active

07373065

ABSTRACT:
It is provided a structure capable of reducing the loss of incident light propagating in a three-dimensional optical waveguide in a optical waveguide substrate having a ridge type optical waveguide. An optical waveguide substrate has a ferroelectric layer3made of a ferroelectric material, a ridge portion formed on a surface of the layer3and protrusions provided in both sides of the ridge portion. A three-dimensional optical waveguide is provided in the ridge portion. Alternatively, the substrate has a ridge portion15formed on a surface of the layer3and step portions provided in both sides of the ridge portion15and lower than the ridge portion15.Grooves16are formed in the outsides of the step portions, respectively, and a three-dimensional optical waveguide is provided in the ridge portion15.

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