Fiber optic connectors employing moveable optical interfaces with fiber protection features and related components and methods

Patent metadata

Field	Value
Publication number	US-9304265-B2
Application number	US-201213558978-A
Country	US
Kind code	B2
Filing date	Jul 26, 2012
Priority date	Jul 26, 2012
Publication date	Apr 5, 2016
Grant date	Apr 5, 2016

Abstract

Embodiments disclosed herein include fiber optic connectors employing a movable optical interface connected by optical fibers to a fiber optic cable, components and methods. In one embodiment, the movable optical interface moves between an extended position for cleaning by the user of the movable optical interface and a retracted position to optically connect the fiber optic connector to an optical device in a mechanically-secure manner. Because the fiber optic cable employs the movable optical interfaces, embodiments described herein involve one or more fiber protection features to prevent optical fiber attenuation and/or damage to the end portions of the optical fibers.

First claim

We claim:

1. A fiber optic connector, comprising:
a fiber optic connector body comprising a ferrule opening, a fiber optic cable opening, and an internal chamber;
a fiber optic cable comprising optical fibers; and
a movable optical interface configured to move within the internal chamber, the movable optical interface comprising a ferrule and a fiber bend control body, wherein:
the ferrule comprises a mating face configured to be accessible to a user for cleaning, and at least one optical fiber opening configured to receive end portions of the optical fibers into fiber chambers optically aligned with fiber lenses disposed in the mating face of the ferrule,
the fiber bend control body is disposed adjacent to the at least one fiber opening, wherein the fiber control body is configured to turn and guide end portions of optical fibers disposed in the internal chamber, and to provide optical fiber bend control of the end portions of the optical fibers, and
the movable optical interface is configured to transmit optical signals from the end portions of the optical fibers to an optical device.

2. The fiber optic connector of claim 1 , wherein the fiber bend control body comprises at least one arcuate surface configured to turn and guide the end portions of the optical fibers from a direction aligned with the fiber lenses to a direction angled from the fiber lenses.

3. The fiber optic connector of claim 2 , wherein the at least one arcuate surface turns the end portions of the optical fibers ninety (90) degrees.

4. The fiber optic connector of claim 1 , wherein the movable optical interface is movable between an extended position and a retracted position.

5. The fiber optic connector of claim 4 , wherein the extended position and retracted position are separated by at least two (2) millimeters.

6. The fiber optic connector of claim 4 , further comprising at least one alignment member configured to align the movable optical interface with the optical device when moved from the extended position to the retracted position.

7. The fiber optic connector of claim 6 , wherein the end portions of the optical fibers are routed through one of the at least one alignment member.

8. The fiber optic connector of claim 6 , wherein the end portions of the optical fibers are routed across one of the at least one alignment member.

9. The fiber optic connector of claim 1 , wherein the fiber bend control body comprises a separation plate including a boss, and the boss is configured to restrict movement of the end portions of optical fibers.

10. The fiber optic connector of claim 9 , wherein the boss is disposed within a loop formed of the end portions of the optical fibers and the loop abuts against at least one side of the separation plate.

11. A method for making a fiber optic cable that provides fiber bend control of an optical fiber disposed in the fiber optic connector employing a movable optical interface, comprising:
providing a fiber optic connector body comprising a ferrule opening, a fiber optic cable opening, and an internal chamber;
disposing a movable optical interface in the internal chamber, the movable optical interface comprising a ferrule and a fiber bend control body, wherein:
the ferrule comprises at least one optical fiber opening and a mating face configured to be accessible to a user for cleaning, and
the fiber bend control body is disposed adjacent to the at least one optical fiber opening of the ferrule; and

receiving end portions of optical fibers of a fiber optic cable into fiber chambers through the at least one optical fiber opening of the ferrule, wherein the fiber chambers are optically aligned with fiber lenses disposed in the mating face of the ferrule; and
turning and guiding end portions of optical fibers disposed in the fiber optic connector body with the fiber bend control body,
wherein the movable optical interface is configured to transmit optical signals from the end portions of the optical fibers to an optical device.

12. The method of claim 11 , further comprising moving the movable optical interface between an extended position and a retracted position.

13. The method of claim 11 , further comprising:
aligning and terminating the end portions of the optical fibers with the fiber lenses; and
turning the end portions of the optical fibers with at least one arcuate surface of the movable optical interface from a direction aligned with the fiber lenses to a direction angled from the fiber lenses.

14. The method of claim 13 , wherein in the turning the end portions, the at least one arcuate surface turns the end portions of the optical fibers ninety (90) degrees.

15. The method of claim 13 , wherein the moving the movable optical interface further comprises:
guiding the movable optical interface between the extended position to the retracted position with at least one alignment member of the fiber optic connector, and
routing the end portions of the optical fibers through one of the at least one alignment member of the fiber optic connector.

Assignees

• Isenhour Micah C
• Knecht Dennis M
• Luther James P
• Corning Cable Sys Llc

Inventors

• Isenhour Micah C
• Knecht Dennis M
• Luther James P

Classifications

• G02B6/3885 Primary

  Multicore or multichannel optical connectors, i.e. one single ferrule containing more than one fibre, e.g. ribbon type (optical ribbon cable G02B6/4403, G02B6/448) · CPC title

• G02B6/3853

  Lens inside the ferrule (lensed connectors G02B6/32) · CPC title

• G02B6/3829

  Bent or angled connectors (G02B6/3827 takes precedence) · CPC title

• Y10T29/49826

  Assembling or joining · CPC title

• G02B6/3821

  with axial spring biasing or loading means (G02B6/3847 takes precedence) · CPC title