Optical fiber holding component, receptacle-equipped pigtail, patch code, and optical module

Patent metadata

Field	Value
Publication number	US-2016349463-A1
Application number	US-201515111379-A
Country	US
Kind code	A1
Filing date	Jan 19, 2015
Priority date	Jan 20, 2014
Publication date	Dec 1, 2016
Grant date	—

Abstract

An optical fiber holding component includes a ferrule; an optical fiber including a front end portion which is inserted into the ferrule and is fixed thereto, and includes a rear end side drawn to an outside from a rear end of the ferrule; a holder which surrounds part of the optical fiber drawn from the rear end of the ferrule and holds a rear end portion of the ferrule; and a case including a press-fitted region press-fitted to a front end side portion of the holder which is located at a position closer to a front end side than to a rear end surface position of the ferrule, the case including a covering portion situated closer to a rear end side than to the press-fitted region, the covering portion having an inner diameter larger than an outer diameter of the holder and surrounding the holder.

First claim

1 . An optical fiber holding component, comprising:
a ferrule; an optical fiber comprising a front end portion which is inserted into the ferrule and is fixed thereto, and comprises a rear end side drawn to an outside from a rear end of the ferrule; a holder which surrounds part of the optical fiber drawn from the rear end of the ferrule and holds a rear end portion of the ferrule; and a case comprising a press-fitted region press-fitted to a front end side portion of the holder which is located at a position closer to a front end side than to a rear end surface position of the ferrule, the case comprising a covering portion situated closer to a rear end side than to the press-fitted region, the covering portion having an inner diameter larger than an outer diameter of the holder and surrounding the holder.

2 . The optical fiber holding component according to claim 1 , wherein the holder has a large diameter portion having a larger outer diameter than an outer diameter of a front end side of the holder, the large diameter portion is provided in a rear end portion of the holder, a stepped surface is provided at a front end of the large diameter portion, and a rear end surface of the case abuts against the stepped surface.

3 . The optical fiber holding component according to claim 1 , wherein an inner peripheral surface of a rear end portion of the case is supported by an outer peripheral surface of the holder.

4 . The optical fiber holding component according to claim 1 , wherein the holder is provided with a first region situated on the front end side of the holder and a second region situated closer to a rear end side of the holder than to the first region and the second region holds the ferrule by an inner surface thereof, and an inner diameter of the first region is larger than an inner diameter of the second region.

5 . The optical fiber holding component according to claim 4 , wherein the press-fitted region exists within a range of the first region.

6 . A receptacle-equipped pigtail, comprising:
the optical fiber holding component according to claim 1 ; and a sleeve one end of which is placed on a front end of the ferrule.

7 . A patch code, comprising:
the receptacle-equipped pigtail according to claim 6 ; and an external connection ferrule which is inserted into a rear end portion of the optical fiber and fixed thereto.

8 . An optical module, comprising:
the patch code according to claim 7 ; and an optical element connected to the external connection ferrule.

Assignees

• Kyocera Corp

Inventors

• Akashi Tomoyoshi

Classifications

• G02B6/4292

  the light guide being disconnectable from the opto-electronic element, e.g. mutually self aligning arrangements · CPC title

• G02B6/3869 Primary

  Mounting ferrules to connector body, i.e. plugs · CPC title

• G02B6/3861

  Adhesive bonding (adhesives in general C09J) · CPC title

• G02B6/3874

  using tubes, sleeves to align ferrules · CPC title

• G02B6/4285

  Optical modules characterised by a connectorised pigtail · CPC title