Fitel USA Corporation

Furukawn Electric North America, Inc.

Yu Lu

Norman Roger Lampert

Naif Taleb Subh

Ian A White

Jinkee Kim

Sean L Jones

A laser cleaving apparatus for use in terminating optical fiber cable ends has a laser beam source, the output of which is directed through a beam distorting member, which produces a beam having a chisel shape with a substantially flat side normal to the axis of a connector fiber containing ferrule and focuses it onto the fiber at a point adjacent the ferrule end face with the flat side also adjacent the end face. A single step polishing stage polishes the cleaved fiber end face to make it flat and flush with the ferrule end face.

Laser cleaving method and apparatus for optical fiber cables

Robust fiber connector

An apparatus for tuning PM optical fiber connections has a first assembly including a light source which is connected to a first coupling stage having a rotatable polarizer, and a second assembly having a second coupling stage and a rotatable polarization analyzer for directing light transmitted through a terminated PM jumper cable coupled between the first and second coupling stages to a power meter. The output of the power meter is applied to a processing unit which, in turn, controls a rotation arrangement for the polarizing and analyzer. Crosstalk of this jumper is determined by ascertaining the angular positions of the maximum and minima outputs of the rotating analyzer, and the terminating connectors of the jumper are turned to the maximum value by aligning with a connector key. The process similarly applies to the connections between two jumper cables, with the alignment of the slow wave vectors thereof having achieved by determining the difference in the angular positions of the maximum output, and determining therefrom the positions of the reference keys of both connectors.

Polarization maintaining optical fiber connector and method of tuning (PM connector)

A connector plug for an optical fiber polarization maintaining connector has a front housing portion from which extends a cantilevered latching arm having a cross-sectional shape of a truncated wedge, and a rear housing portion. A barrel assembly having a flange thereon and a ferrule extending therefrom is housed within said first and second portions and is incrementally rotatable with respect to the first portion of the housing and hence to the latching arm. In a first embodiment the flange is seated in the front portion and prevented from turning with respect thereto. In a second embodiment the rear housing portion is an extender cap having resilient clamping arms which grip the flange. The extender cap is incrementally rotatable with respect to the first portion of the housing and, hence, the ferrule is incrementally rotatable with respect to the latching arm.

Polarization maintaining optical fiber connector plug

An adapter for receiving a connector plug terminating an optical fiber has a body member having at least one opening therein having sidewalls for receiving the plug. The opening has a longitudinally extending channel for receiving the latching arm of the connector plug, the side walls of the channel being angled inwardly to create a channel cross-section in the shape of a truncated wedge. In one of the sidewalls of the plug, preferably an outer side wall, is a cantilevered spring member biased inwardly toward the interim of the adapter for maintaining pressure upon the side of a connector plug when inserted therein. The exterior of the adapter body member has a flange thereon for bearing against a panel member or the like, and a metallic member straddles the body member and ahs cantilever leaf springs forming locking members for bearing against the opposite side of the panel from the flange.

Growing community of inventors

Norcross, GA, United States of America

Yu Lu