Optoelectronic device with integrated optical guide and photo-de

Details Optoelectronic device with integrated optical guide and photo-de Optoelectronic device with integrated optical guide and photo-de

1992-09-02

1993-11-09

Gonzalez, Frank

Optical waveguides

Integrated optical circuit

385 27, 385 29, 385 30, 385 31, 385 39, 385 48, 385 50, G02B 626

Patent

active

052610144

ABSTRACT:
An optoelectronic device having an optical guide and photodetector integrated on a common substrate is provided with a light coupling means for increasing the absorption of light within the photodetector. This means consists of freeing the lower portion of the guide layer--opposite the photodetector--to bring it into contact with air. The use of air has the effect of repelling the light propagating through the guide layer towards the absorbent layer of the photodetector thereby increasing the photodetector efficiency.

REFERENCES:
patent: 5138676 (1992-08-01), Stowe et al.
patent: 5170448 (1992-12-01), Ackley et al.
Patent Abstracts of Japan, vol. 8, No. 115(E-247)(1552), May 29, 1984, & JP-59-29472, Feb. 16, 1984, Kiyotaka Wasa, et al., "Substrate For Thin Film Optical Waveguide".

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