Angled physical contact ferrule and associated method and...

Details Angled physical contact ferrule and associated method and... Angled physical contact ferrule and associated method and...

2005-04-12

2005-04-12

Le, Thanh-Tam (Department: 2839)

Optical waveguides

With disengagable mechanical connector

Optical fiber/optical fiber cable termination structure

Reexamination Certificate

active

06877909

ABSTRACT:
A ferrule is provided that can be fabricated in a repeatable and an efficient manner so as to have a relatively small apex offset. The ferrule includes a front face having a plateau defining a plane that extends perpendicular to the longitudinal axis and a hemispherical portion through which a longitudinal bore opens. The hemispherical portion is generally angled relative to the plateau and to the plane perpendicular to the longitudinal axis defined by the plateau. In this regard, a plane coincident with the centerline of the ferrule is disposed at an offset angle, typically between 8° and 12°, relative to the plane perpendicular to the longitudinal axis such that the resulting ferrule is an angled physical contact (APC) ferrule. A method and apparatus for fabricating the ferrule are also provided that grind a portion of the front face of the ferrule into a hemispherical shape with a relatively small apex offset regardless of the amount of material that is removed from the front face of the ferrule.

REFERENCES:
patent: 5245684 (1993-09-01), Terao et al.
patent: 5351327 (1994-09-01), Lurie et al.
patent: 6126519 (2000-10-01), Minami et al.

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