Multi-core optical fiber

Details Multi-core optical fiber Multi-core optical fiber

1998-07-23

2000-08-01

Lee, John D.

Optical waveguides

Optical fiber waveguide with cladding

Utilizing multiple core or cladding

385127, G02B 622

Patent

active

060978686

ABSTRACT:
The multi-core optical fiber comprises cores embedded in common cladding, with each core containing a dopant. A "peculiar" one of the cores has a central zone that is not doped by the dopant, the other cores all being completely doped by the dopant, thereby enabling the peculiar core to be used as a local reference point in order to locate the cores of the optical fiber individually.

REFERENCES:
patent: 4436368 (1984-03-01), Keck
patent: 5566196 (1996-10-01), Scifres
patent: 5689578 (1997-11-01), Yamauchi et al.
patent: 5712941 (1998-01-01), Imoto et al.
Patent Abstracts of Japan, vol. 011, No. 087 (P-557) Mar. 17, 1987 corresponding to JP 61 241705 A (Sumitomo Electric Ind Ltd) Oct. 28, 1986.
Patent Abstracts of Japan, vol. 005, No. 056 (P-057) Apr. 17, 1981 corresponding to JP 56 009707 A (Sumitomo Electric Ind Ltd) Jan. 31, 1981.
Patent Abstracts of Japan, vol. 097, No. 005 May 30, 1997 corresponding to JP 09 005539 A (Hitachi Cable Ltd; Shinetsu Chem Co LTd) Jan. 10, 1997.
Patent Abstracts of Japan, vol. 005, No. 001 (P-043) Jan. 8, 1981 corresponding to JP 55 133003 A (Furukawa Electric Co Ltd) Oct. 16, 1981.

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