Method of manufacturing a multi-fiber optical cross-coupler, and

Details Method of manufacturing a multi-fiber optical cross-coupler, and Method of manufacturing a multi-fiber optical cross-coupler, and

1995-12-20

1997-01-14

Ngo, John

Optical waveguides

With optical coupler

Particular coupling structure

385 48, 385115, 65409, 65411, G02B 626

Patent

active

055948235

ABSTRACT:
The multi-fiber optical cross-coupler includes N peripheral fibers and a central fiber that are coupled together optically. The method of the invention for manufacturing such a cross-coupler consists in forming a multi-waveguide conductor by drawing a composite primary preform, the waveguides of the conductor being cylindrical elementary fibers embedded so that they are mutually parallel in mechanical and optical coupling cladding, said waveguides defining the fibers of the cross-coupler, and having opto-geometrical characteristics so that they are optically coupled over a defined length of said conductor, which length is cut off accordingly. Application to an optical coupler.

REFERENCES:
patent: 5212452 (1992-06-01), Stowe et al.
patent: 5268979 (1993-12-01), Weidman
patent: 5353365 (1994-10-01), Dumas et al.
patent: 5454057 (1995-09-01), Arima et al.
Washington, K. Himeno et al, "Novel optical-fiber-coupler fabrication technique using multicore fibers", OFC/100C, '93, San Jose, CA Feb. 21-26, 1993, Technical Digest Series, vol. 4, Conference Edition, Optical Society of America, pp. 98-99.
Patent Abstracts of Japan, vol. 12, No. 408 (P-778) 28 Oct. 1988 corresponding to JP-A-63 147 110 (Furukawa Electric).

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