Optical guided-wave device and manufacturing method

Details Optical guided-wave device and manufacturing method Optical guided-wave device and manufacturing method

1993-04-21

1995-04-18

Bovernick, Rodney B.

Optical waveguides

Planar optical waveguide

Thin film optical waveguide

385130, 385129, 385 8, G02B 610

Patent

active

054085667

ABSTRACT:
An optical guided-wave device with an electro optic effect is comprised of first and second substrates having first and second refractive indices wherein the second refractive index is larger than the first one. These substrates are made of a single crystal dielectric material such as lithium tantalate or lithium niobate and, if they are made of the same material, they have different crystal orientations resulting in different refractive indices. These substrates are physically bonded directly or via a thin film such as glass, silicon, silicon oxide or silicon nitride and then, the second substrate is thinned and worked to form a wave guide therein.

REFERENCES:
patent: 4679892 (1987-07-01), Haisma et al.
patent: 4728167 (1988-03-01), Soref et al.

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