Wave-guide structure with a multi-layer system and methods for p

Details Wave-guide structure with a multi-layer system and methods for p Wave-guide structure with a multi-layer system and methods for p

1975-04-17

1976-07-20

Corbin, John K.

350 96C, G02B 514, G02B 520, G02B 530

Patent

active

039703606

ABSTRACT:
A wave-guide structure for use in optical communications and a method of producing the wave-guide structure characterized by a substrate of a given index of refraction, a wave-guide layer having lateral edges and a different index of refraction disposed on a surface of the substrate and a multi-layer system extending through the wave-guide layer between the lateral edges to separate the wave-guide layer into two wave-guide portions which are integral with the multi-layer system and in planar alignment with each other, the multi-layer system comprises a plurality of layers with different indexes of refraction which layers extend at either a right angle or oblique angle to the surface of the wave-guide layer and at either a right angle or an oblique angle to the lateral edges so that radiation transmitted in one of the wave-guide portions has an angle of incident with the multi-layer system. The multi-layer system may extend partially ito the substrate or completely therethrough. The method of producing the various wave-guide structures includes providing a substrate having at least one flat surface, either cutting a groove in the substrate to subdivide the flat surface or cutting the substrate into a pair of substrate portions, applying the multi-layer system either to a side wall of the groove or one of the cut surfaces, and providing the formation of wave-guide layers on the flat surface.

REFERENCES:
patent: 3760292 (1973-09-01), Kogelnik et al.
patent: 3826992 (1974-07-01), Friedl
patent: 3868589 (1975-02-01), Wang
patent: 3884549 (1975-05-01), Wang et al.

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