Optical coupler

Details Optical coupler Optical coupler

1998-07-08

2000-04-04

Palmer, Phan T. H.

Optical waveguides

With optical coupler

Particular coupling structure

385 41, 385 42, 385 43, G02B 626

Patent

active

060470976

ABSTRACT:
An optical coupler including optical fibers having gaps between first coverings and second coverings corresponding thereto. Each cladding of the two optical fibers is formed into a proper shape, with a taper of a proper thickness. The two optical fibers are then joined together, forming a joined portion which engages an engaging groove in a pair of blocks and the pair of blocks are affixed together by welding. Thereafter, the second coverings are affixed to cutouts in a retainer member. Lastly, the retainer, fitted to the blocks, is affixed thereto. Such an optical coupler is highly practical, does not allow deterioration of light dividing properties caused by changes in the length of the cladding joined portion as a result of an external stress, and prevents breakage of the joined portion.

REFERENCES:
patent: 5261018 (1993-11-01), Suganuma et al.
patent: 5463708 (1995-10-01), Yui et al.
patent: 5479548 (1995-12-01), Cote' et al.
patent: 5694509 (1997-12-01), Uemura et al.

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