Compact and fabrication tolerant high speed digital optical Y-sw

Optical waveguides – With optical coupler – Particular coupling structure

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385 14, 385 15, 385 16, 385 39, 385131, 385132, G02B 626

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active

056235682

ABSTRACT:
An optical switch provides improved high speed digital optical switching with a compact and fabrication tolerant configuration, and includes a first waveguide portion, a plurality of intermediate waveguide portions connected to the first portion, with each intermediate portion associated with a first angle .theta..sub.1 where the first angle .theta..sub.1 is less than about 2.0.degree.; and a plurality of branch waveguide portions, with each branch waveguide portion connected to a respective intermediate waveguide portion and associated with a second angle .theta..sub.2 where the second angle .theta..sub.2 is less than .theta..sub.1 and is less than about 0.3.degree..

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