Optical fiber terminal with optical isolator and semiconductor l

Details Optical fiber terminal with optical isolator and semiconductor l Optical fiber terminal with optical isolator and semiconductor l

1997-06-03

1998-11-24

Palmer, Phan T. H.

Optical waveguides

With disengagable mechanical connector

Optical fiber/optical fiber cable termination structure

385 73, 385 33, 385 88, 372703, G02B 636

Patent

active

058419225

ABSTRACT:
An optical fiber terminal provided with an optical isolator having a Faraday rotator, including an optical fiber retained in a ferrule, an optical isolator element, and a permanent magnet for applying a magnetic field to the Faraday rotator is improved to provide a minimum possible outer diameter. The fiber terminal comprises an attaching member for fixedly attaching the optical isolator and the permanent magnet to the ferrule together; an air layer between an end of said optical fiber and said optical isolator element; a first outer diameter of said ferrule on the side of the optical isolator constituting a maximum diameter of the optical fiber terminal, a second outer diameter of said ferrule on the side of the optical fiber being smaller than the first maximum diameter; and the periphery of the permanent magnet being exposed to the air.

REFERENCES:
patent: 5359689 (1994-10-01), Iwatsuka et al.
patent: 5500915 (1996-03-01), Iwatsuka et al.
patent: 5691845 (1997-11-01), Iwatsuka et al.

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