Optical fiber array and a method of producing the same

Optical waveguides – With optical coupler – Input/output coupler

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385 74, 385 77, 385 93, 385 94, G02B 636

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055662625

ABSTRACT:
An optical fiber array includes a plurality of optical fibers which are arranged and fixed in a fiber array member. The optical fibers each have an end projecting from an end face of the fiber array member at substantially the same distance, and each have a lens formed at the end thereof. The optical fiber array is produced by arranging and fixing a plurality of optical fibers in the fiber array member such that each end of the optical fibers is projected from the end face of the fiber array member; forming a coating layer of a desired thickness over the end face of the fiber array member and portions of the optical fibers projecting from the end face of the fiber array member; collectively polishing the ends of the optical fibers projecting from the end face of the fiber array member, together with the coating layer, up to a predetermined position, thereby making the lengths of projections of the optical fibers substantially equal; and removing the coating layer and forming a lens at each end of the optical fibers.

REFERENCES:
patent: 4221461 (1980-09-01), Bair
patent: 4265699 (1981-05-01), Ladany
patent: 4290667 (1981-09-01), Chown
patent: 4812002 (1989-03-01), Kato et al.
Patent Abstracts of Japan, vol. 7, No. 274 (P-241) Dec. 7, 1983 & JP-A-58 152 213 (Fujitsu) Sep. 9, 1983.
Applied Optics, vol. 30, No. 15, May 20, 1991, New York USA pp. 1958-1962, C. W. Barnard et al, "Single-Mode Fiber Microlens with Controllable Spot Size" Chapter III.
Patent Abstracts of Japan, vol. 6, No. 53 (P-109) Apr. 8, 1982 & JP-A-56 167 115 (Fujitsu), Dec. 22, 1981.
Patent Abstracts of Japan, vol. 8, No. 82 (P-268), Apr. 14, 1984 & JP-A-59 000 105 (Mitsubishi) Jan. 5, 1984.

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