Methods for laser processing arrayed optical fibers along with splicing connectors

• US 9,268,091 B2
• Filed: 02/16/2011
• Issued: 02/23/2016
• Est. Priority Date: 02/18/2010
• Status: Active Grant

• Current Assignee: Corning Optical Communications LLC (Corning Incorporated)
• Original Assignee: Corning Cable Systems LLC (Corning Incorporated)
• Inventors: Jong, Michael de, Hall, Radawan, Isenhour, Micah C., Knecht, Dennis M., Luther, James P.
• Primary Examiner(s): Ross, Dana
• Assistant Examiner(s): MAYE, AYUB A
• Application Number:
  US13/028,799
• Publication Number:
  US 20110198324A1
• Time in Patent Office: 1,833 Days
• Field of Search: 219/121.6, 219/121.67, 219/121.72
• US Class Current: 1/1
• CPC Class Codes: G02B 6/245 Removing protective coverings of light guides before coupling
• CPC Class Codes: G02B 6/25 Preparing the ends of light guides for coupling, e.g. cutting
• CPC Class Codes: G02B 6/2555 Alignment or adjustment devices for aligning prior to splicing
• CPC Class Codes: G02B 6/32 having lens focusing means positioned between opposed fibre ends with lens being an integral part of the single fibre end G02B6/262
• CPC Class Codes: G02B 6/3809 without a ferrule embedding the fibre end, i.e. with bare fibre end
• CPC Class Codes: G02B 6/3825 with an intermediate part, e.g. adapter, receptacle, linking two plugs

Abstract

A method for laser processing arrays of optical fibers and high-fiber count splicing connectors and adapters are disclosed. The method includes the steps of providing a structure having optical fibers arranged in a plurality of rows and placing a protection element adjacent to a first row of optical fibers and a second row of optical fibers. Thereafter, the first row of optical fibers can be processed using the laser. The protection element may also be used to move optical fibers. In one embodiment, the protection element has a first portion and a second portion that have relative movement therebetween. In other variations, an absorption element may be provided adjacent the first row of optical fibers for inhibiting incidental damage to the structure.

Claims

1. A method for laser processing a plurality of optical fibers comprising the steps of:

providing a structure having a plurality of optical fibers arranged in a plurality of rows;

inserting a protection element between a first row of optical fibers and a second row of optical fibers;

laser processing the first row of optical fibers with laser energy; and

shielding the second row of optical fibers from the laser energy during the laser processing step, wherein the step of shielding comprises;

the protection element being positioned between the first row of optical fibers and the second row of optical fibers during the step of laser processing, and

the laser energy impacting the protection element while the protection element is positioned between the first row of optical fibers and the second row of optical fibers during the step of laser processing.

2. The method of claim 1, further including the step of providing an absorption element adjacent to the first row of optical fibers.

3. The method of claim 1, further including the step of using the protection element to move the second row of optical fibers.

4. The method of claim 1, wherein the protection element is a reflection element.

5. The method of claim 1, wherein the protection element is an absorption element.

6. The method of claim 1, wherein the protection element is a dispersion element.

7. The method of claim 1, wherein the protection element has a first portion and a second portion.

8. The method of claim 1, further including the step of repositioning the protection element for laser processing the second row of optical fibers.

9. The method of claim 1, wherein the structure secures the optical fibers at a common location for inhibiting relative movement among the optical fibers in the plurality of rows.

10. The method of claim 1, wherein:

the step of providing the structure is comprised of;

removing a portion of a cable jacket within which the optical fibers are initially disposed, and

inserting the optical fibers into the structure so that the optical fibers are arranged in the plurality of rows; and

the method further comprises using the structure with a fiber optic connector.

11. The method of claim 1, further comprising creating space between the second row of optical fibers and the first row of optical fibers, wherein the creating of the space is comprised of pushing the second row of optical fibers away from the first row of optical fibers with the protection element.

12. The method of claim 7, further including the step of moving the first portion of the protection element relative to the second portion of the protection element.

13. The method of claim 7, wherein the protection element includes a hinge and a space therebetween.

14. The method of claim 7, further including the step of inserting one or more optical fibers into a space between the first portion and the second portion of the protection element.

15. The method of claim 11, further comprising using the protection element to maintain the space between the second row of optical fibers and the first row of optical fibers during the step of laser processing.

16. A method for laser processing a plurality of optical fibers comprising the steps of:

providing a structure having a plurality of optical fibers arranged in a plurality of rows;

presenting a first row of optical fibers for laser processing by a laser and shielding a second row of optical fibers from the laser, wherein;

the presenting of the first row of optical fibers and the shielding of the second row of optical fibers are comprised of inserting a protection element between the plurality of optical fibers, the protection element having a first portion and a second portion attached to the first portion by a hinge,

the inserting of the protection element is comprised of inserting the first row of optical fibers into a space between the first and second portions of the protection element,

the presenting of the first row of optical fibers and the shielding of the second row of optical fibers are further comprised of causing relative movement between the first row of optical fibers and the second row of optical fibers, and

the causing of the relative movement is comprised of causing relative pivoting between the first and second portions of the protection element, and the pivoting being about the hinge; and

laser processing the first row of optical fibers with the laser while the second row of optical fibers is shielded from the laser by the protection element.

17. The method of claim 16, further including the step of providing an absorption element adjacent to the first row of optical fibers.

18. The method of claim 16, wherein the protection element includes one or more of a reflection element, an absorption element and a dispersion element.

19. The method of claim 16, wherein the shielding of the second row of optical fibers is comprised of laser energy impacting the protection element during the step of laser processing.

20. The method of claim 16, wherein the structure secures the optical fibers at a common location for inhibiting relative movement among the optical fibers in the plurality of rows.

21. The method of claim 16, wherein:

the step of providing the structure is comprised of;

removing a portion of a cable jacket within which the optical fibers are initially disposed, and

inserting the optical fibers into the structure so that the optical fibers are arranged in the plurality of rows; and

the method further comprises using the structure with a fiber optic connector.

22. A method for laser processing a plurality of optical fibers comprising the steps of:

providing a structure having a plurality of optical fibers arranged in a plurality of rows;

inserting a protection element between the plurality of optical fibers so that a first row of optical fibers is presented for laser processing by a laser and a second row of optical fibers is shielded from the laser, the protection element having a first portion and a second portion attached to the first portion by a hinge, wherein the first row of optical fibers is inserted into a space between the first and second portions of the protection element when presented for laser processing;

laser processing the first row of optical fibers with the laser while the second row of optical fibers is shielded from the laser by the protection element;

moving the protection element outward from between the plurality of optical fibers;

repositioning the protection element to align the second row of optical fibers with the space between the first and second portions;

inserting the protection element between the plurality of optical fibers so that the second row of optical fibers is presented for laser processing by the laser and the first row of optical fibers is shielded from the laser; and

laser processing the second row of optical fibers with the laser while the first row of optical fibers is shielded from the laser by the protection element.