Optical fiber coupler with overlapping core-extensions, and manu

Details Optical fiber coupler with overlapping core-extensions, and manu Optical fiber coupler with overlapping core-extensions, and manu

Filed on

1992-07-06

Date issued

1994-02-15

Examiner

Gonzalez, Frank

Patent Class

Optical waveguides

SubClass

With optical coupler

SubSubClass

Particular coupling structure

Other Related Categories

385 31, 385 33, 385 50, 385 51, 264 15, G02B 626

Type

Patent

Status

active

Patent number

052874249

Description

ABSTRACT:
The basic embodiment of the present invention comprises an optical fiber having cores and a claddings, and core-extensions, wherein the individual core-extensions are built onto the core end facets in a shape of the diverging horn-like structure, with the sectional area increasing gradually as the individual core-extensions extend farther away from the core end facets to merge together and form a common core-extension for light mixing and coupling. The core-extension may be made of a photo-reactive material to be shaped after the diverging radiation pattern of light emitted from the core end facets.

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patent: 4946239 (1990-08-01), Garmon
patent: 4950045 (1990-08-01), Brichenno et al.
patent: 4961617 (1990-10-01), Shahidi et al.
patent: 5169677 (1992-12-01), Sangyoji et al.

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