Field terminable ST format optical fiber connector

Patent metadata

Field	Value
Publication number	US-8998506-B2
Application number	US-201314022288-A
Country	US
Kind code	B2
Filing date	Sep 10, 2013
Priority date	Sep 14, 2012
Publication date	Apr 7, 2015
Grant date	Apr 7, 2015

Abstract

An ST format optical connector for terminating an optical fiber comprises a housing configured to mate with an ST receptacle or coupling, the housing having an ST bayonet-style format. The ST format optical connector also includes a collar body and a retainer disposed in the housing, where the collar body is retained between the housing and the retainer. The housing is prevented from fully rotating about the collar body and retainer. In addition, the connector can be deactivated for fiber repositioning or reuse.

First claim

We claim:

1. An ST format optical connector for terminating an optical fiber, comprising:
a housing configured to mate with an ST receptacle or coupling, the housing having an ST bayonet-style format;
a collar body disposed in the housing;
a retainer disposed in the housing, wherein the retainer is disposed between the collar body and the housing, and wherein the housing is prevented from fully rotating about the collar body and retainer; and
a fiber boot to restrict a lateral motion of the optical fiber, the fiber boot mountable to a portion of the retainer,
wherein the collar body further includes a buffer clamp configured within a third portion of the collar body, the buffer clamp configured to clamp at least a portion of a buffer cladding of the optical fiber upon actuation; and a buffer clamp actuation sleeve configured to be received on an outer surface of the third portion of the collar body and configured to slidably actuate the buffer clamp, the buffer clamp actuation sleeve including a flange portion formed on one end thereof, and
wherein the fiber boot further includes one or more access slots formed through the outer surface thereof configured to permit access to the flange portion of the buffer clamp actuation sleeve when the buffer clamp actuation sleeve is mounted on the buffer clamp.

2. The ST format optical connector of claim 1 , wherein the collar body includes a fiber stub disposed in a first portion of the collar body, the fiber stub being mounted in a ferrule and having a first end proximate to an end face of the ferrule and a second end, wherein the collar body further includes a mechanical splice disposed in a second portion of the collar body, the mechanical splice configured to splice the second end of the fiber stub to the optical fiber.

3. The ST format optical connector of claim 2 , wherein the housing includes a housing slot positionable over the mechanical splice.

4. The ST format optical connector of claim 1 , wherein the housing includes an inner tab receivable within a retention slot formed on an outer surface of the retainer when the connector is in an unconnected state.

5. The ST format optical connector of claim 4 , wherein, during a connection with an ST coupling, when the housing is moved toward the ST coupling, the inner tab is released from the retention slot.

6. The ST format optical connector of claim 5 , therein the collar body further includes a key structure formed on an outer surface configured to be received by a slot formed in the ST coupling.

7. The ST format optical connector of claim 5 , wherein the retainer further includes a ledge formed on an outer surface thereof configured to contact the inner tab to prevent additional rotation of the housing.

Assignees

• 3M Innovative Properties Co

Inventors

• Pepin Ronald P
• Pratt Jerome A

Classifications

• G02B6/3624 Primary

  Fibre head, e.g. fibre probe termination (optical details of light guide terminations G02B6/241; reshaping of light guides G02B6/2552; optical details of coupling light into or out of fibre end G02B6/262) · CPC title

• G02B6/3846 Primary

  with fibre stubs · CPC title

• G02B6/3891

  Bayonet type · CPC title

• G02B6/38875

  Protection from bending or twisting · CPC title