Optical waveguide

Details Optical waveguide Optical waveguide

1997-01-07

1998-11-17

Ngo, John

Optical waveguides

With optical coupler

Particular coupling structure

385 46, 385 48, 385 43, 385 49, 385 14, G02B 626

Patent

active

058388532

ABSTRACT:
An optical waveguide having stable low branching ratio is disclosed, which includes a primary optical waveguide portion coupled at a input end thereof to an input-side optical fiber. branched optical waveguide portions each having one end continuously connected to a output end of the primary optical waveguide portion and the other ends coupled to a plurality of output-side optical fibers and an introductory waveguide portion coupled to the input end of the primary optical waveguide portion and having a width substantially identical with a core diameter of the input-side optical fiber. Further, there is provided a method of producing an optical branching device in which the optical waveguide is formed.

REFERENCES:
patent: 5091986 (1992-02-01), Arii et al.
patent: 5570442 (1996-10-01), Arii et al.
patent: 5673345 (1997-09-01), Saito et al.

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