Optical waveguide formed of compound semiconductor materials and

Details Optical waveguide formed of compound semiconductor materials and Optical waveguide formed of compound semiconductor materials and

1992-01-17

1993-08-17

Healy, Brian

Optical waveguides

Planar optical waveguide

Thin film optical waveguide

385 14, 385130, 372 43, 372 50, 372 44, 437 51, 437129, G02B 612, H01S 318, H01L 2170

Patent

active

052376397

ABSTRACT:
An optical waveguide is fabricated on a substrate of n-type indium phosphide, and comprises a guiding layer of intentionally undoped indium gallium arsenide sandwiched between lower and upper cladding layers of intentionally undoped indium phosphide, wherein the upper cladding layer has a ridge epitaxially grown on a part of an upper surface of the upper cladding layer so that the optical waveguide achieves low propagation losses.

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patent: 5179615 (1993-01-01), Tanaka et al.
Hiroaki Takeuchi and Kunishige O. E., "Low-Loss Single-Mode GaAs/AlGaAs Miniature Optical Waveguides with Straight and Bending Structures," Journal of Lightwave Technology, Jul. 7, 1989.

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