Optical fiber cable connector

Patent metadata

Field	Value
Publication number	US-11914199-B2
Application number	US-202017084165-A
Country	US
Kind code	B2
Filing date	Oct 29, 2020
Priority date	Oct 29, 2019
Publication date	Feb 27, 2024
Grant date	Feb 27, 2024

Abstract

A laser light energy coupling with a male launch connecter. The male launch connector having a body portion with the fiber optic line terminating at an optical connection component including a male ferrule. The optical connection component being elongate and generally cylindrical with a central circumferential band. The body portion defining a cavity form fit and spaced about the optical connection component. An elastomeric support engaging the optical connection portion provides compliancy when the coupling is made and provides centration before the coupling is made. The elastomeric support positioned rearward of the optical connection component. The elastomeric support may clamp the fiber optic line therein. A forward facing annular surface displaced rearwardly of a forwardmost portion of the male ferrule provides a stop surface when the coupling is made and provides heat transfer means to dissipate heat from the male ferrule through into a receiving coupling.

First claim

We claim:

1. An optical fiber connector coupling for connecting a laser radiation source to a device, the coupling comprising a launch connector having a forward end, a rearward end and an axis, the launch connector comprising a body portion with an optical fiber extending into the body portion at the rearward end, the launch connector having a mechanical connection portion defined by the body portion and an optical connection portion, the optical connection portion contained within the mechanical connection portion and comprising a male ferrule connected to the optical fiber, the optical fiber having a forwardly exposed facet at a forward end of the ferrule, a block of compliant elastomeric material centrally positioned within the body portion about the launch connector axis, the block configured as a cup with a central aperture, the cup receiving a rearward end of the optical connection portion, the cup positioned at a shoulder of the optical connection portion, and abutting a rearward facing surface of the optical connection portion.

2. The optical fiber connector coupling of claim 1 , wherein the optical connection portion has a forward facing annular face displaced rearwardly from the forward most end of the male ferrule, the annular surface providing a stop surface for the optical connection portion when connecting the launch connector.

3. The laser light energy coupling of claim 1 , wherein the body portion defines a housing with a cavity sized for providing a circumferential gap between the optical portion and the housing, thereby constraining the optical portion within the housing while allowing radial, forward and rearward movement of the optical connection portion.

4. The laser light energy coupling of claim 1 , wherein the body portion has a forward nose piece with a tubular portion containing the optical connection portion, the forward nose piece having a cavity, the forward nose piece form fit to the optical connection portion but with a gap between the optical connection portion and the nose piece, whereby the optical connection portion has constrained movement in the cavity.

5. An optical fiber connector coupling for connecting a laser radiation source to a device, the coupling comprising a launch connector having a forward end, a rearward end and an axis, the launch connector comprising a body portion with an optical fiber extending into the body portion at the rearward end, the launch connector having a mechanical connection portion defined by the body portion and an optical connection portion, the optical connection portion contained within the mechanical connection portion and comprising a male ferrule connected to the optical fiber, the optical fiber having a forwardly exposed facet at a forward end of the ferrule, a block of compliant elastomeric material centrally positioned within the body portion about the launch connector axis and abutting a rearward facing surface of the optical connection portion, wherein the fiber optic line is clamped within the elastomeric block thereby providing axial compliancy to the fiber optic line.

6. An optical fiber connector coupling for connecting a laser radiation source to a device, the coupling comprising a launch connector having a forward end, a rearward end and an axis, the launch connector comprising a body portion with an optical fiber extending into the body portion at the rearward end, the launch connector having a mechanical connection portion defined by the body portion and an optical connection portion, the optical connection portion contained within the mechanical connection portion and comprising a male ferrule connected to the optical fiber, the optical fiber having a forwardly exposed facet at a forward end of the ferrule, a block of compliant elastomeric material centrally positioned within the body portion about the launch connector axis, the block configured as a cup with a central aperture, the cup receiving a rearward end of the optical connection portion and abutting a rearward facing surface of the optical connection portion wherein the body portion has a forward nose piece with a tubular portion containing the optical connection portion, the optical connection portion being generally cylindrical with a central circumferential band, the forward nose piece having a cavity form fit to the optical connection portion but with a gap between the optical connection portion and the nose piece whereby the optical connection piece has constrained movement therein.

7. An optical fiber connector coupling for connecting a laser radiation source to a device, the coupling comprising a launch connector having a forward end, a rearward end and an axis, the launch connector comprising a body portion with an optical fiber extending into the body portion at the rearward end, the launch connector having a mechanical connection portion defined by the body portion and an optical connection portion, the optical connection portion contained within the mechanical connection portion and comprising a male ferrule connected to the optical fiber, the optical fiber having a forwardly exposed facet at a forward end of the ferrule, a block of compliant elastomeric material centrally positioned within the body portion about the launch connector axis, the block configured as a cup with a central aperture, the cup receiving a rearward end of the optical connection portion and abutting a rearward facing surface of the optical connection portion, wherein the body portion has a forward nose piece with a tubular portion containing the optical connection portion, the body portion having a grasping portion rearward of the nose piece, the nose piece having a flange seated in an annular groove of the grasping portion, the connector coupling further comprising an O-ring positioned between the nose piece and the grasping portion.

Assignees

• Ipg Photonics Corp

Inventors

• Gaal Christopher
• Altshuler Gregory
• Kozlov Valery

Classifications

• G02B6/3897

  Connectors fixed to housings, casing, frames or circuit boards (G02B6/44528 takes precedence) · CPC title

• G02B6/3882 Primary

  using rods, pins or balls to align a pair of ferrule ends · CPC title

• G02B6/4296 Primary

  coupling with sources of high radiant energy, e.g. high power lasers, high temperature light sources · CPC title

• A61N2005/063

  comprising light transmitting means, e.g. optical fibres · CPC title

• A61B18/22

  the beam being directed along or through a flexible conduit, e.g. an optical fibre; {Couplings or} hand-pieces therefor · CPC title