Ferrule for an optical fiber connector

Details Ferrule for an optical fiber connector Ferrule for an optical fiber connector

1996-02-09

1998-06-30

Palmer, Phan T. H.

Optical waveguides

With disengagable mechanical connector

Optical fiber/optical fiber cable termination structure

385 85, 385 68, G02B 636

Patent

active

057746133

ABSTRACT:
A ferrule for an optical fiber connector has a cylindrical sleeve or body (1) and a capillary (3) received in the sleeve 1. The sleeve (1) has thereinside a fiber holding portion (2a) adjoining one end of the sleeve (1) and for holding a built-in optical fiber (4), a capillary holding portion (2b) next to the fiber holding portion (2a), and a fiber inserting portion (2c) next to the capillary holding portion (2b) and for inserting an optical fiber (6). The fiber holding portion (2a) and the fiber inserting portion (2c) have the smallest diameter and the largest diameter, respectively. The diameter of the capillary holding portion (2b) is substantially equal to the outside diameter of the capillary 3. The axis of the fiber holding portion (2a) is accurately coincident with the axis of the sleeve (1). The capillary (3) is held in the capillary holding portion (2b) while the fiber (4) extends over the fiber holding portion (2a) and a through bore formed in the capillary 3. A through notch (5) is formed in the capillary (3) and filled with a refractive index matching material (7). The Fiber (6) is inserted into and affixed to the ferrule via the fiber inserting portion (2c).

REFERENCES:
patent: 5018821 (1991-05-01), Kurata
patent: 5499310 (1996-03-01), Ueda

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