Optical ferrule

Details Optical ferrule Optical ferrule

1992-03-11

1993-02-16

Ullah, Akm E.

Optical waveguides

With disengagable mechanical connector

Optical fiber/optical fiber cable termination structure

G02B 600, G02B 636

Patent

active

051877627

ABSTRACT:
An optical ferrule including a non-metallic sleeve 11 formed with a through bore having a small bore portion 14 and a large bore portion 1. A bare fiber 13 and a coating 15 of an optical fiber 12 are adhesively fixed in the small bore portion and the large bore portion, respectively. The large bore portion 16 has at least one groove 17 formed in the inner surface thereof, the optical fiber has a rough surface portion 20 formed in the coating in at least a portion opposing to the groove, a glass tube 18 is inserted in the large bore portion between the small bore portion and the end face of the coating of the optical fiber and has an outer diameter larger than the inner diameter of the small bore portion and an inner diameter adapted for insertion of the bare fiber, and an adhesive 21 is filled between the components including the inner surface of the sleeve. The optical ferrule has superior reliability, durability and stability.

REFERENCES:
patent: 4422716 (1983-12-01), Morimoto et al.
patent: 4447121 (1984-05-01), Cooper et al.
patent: 4673242 (1987-06-01), Logan et al.
patent: 4743084 (1988-05-01), Manning
patent: 4744621 (1988-05-01), Tanabe et al.
patent: 4875754 (1989-10-01), Rao et al.
patent: 5029966 (1991-07-01), Serapins et al.
patent: 5080460 (1992-01-01), Erdman et al.

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