Fixture for fabricating a fiber optic connector ferrule

• US 5,867,620 A
• Filed: 07/28/1997
• Issued: 02/02/1999
• Est. Priority Date: 07/28/1997
• Status: Expired due to Fees

• Current Assignee: Molex Incorporated
• Original Assignee: Molex Incorporated
• Inventors: Bunin, Gregory, Makhlin, Ilya, Margolin, Mark, Roth, Richard F., Grois, Igor
• Primary Examiner(s): Ullah, Akm E.
• Application Number:
  US08/901,850
• Time in Patent Office: 554 Days
• Field of Search: 385/50-53, 385/129-132, 385/147
• US Class Current: 385/53
• CPC Class Codes: G02B 6/3834 Means for centering or aligning the light guide within the ferrule

Abstract

A fixture is disclosed for use in fabricating a connector ferrule for a fiber optic cable which includes a plurality of generally parallel optical fibers. The fixture includes a base, with a receptacle on the base for receiving and properly positioning a ferrule body. A cable locator is provided on the base at one side of the receptacle for positioning the cable inserted in the ferrule body, with exposed end portions of the optical fibers projecting from the ferrule body at an opposite side of the receptacle. A fiber aligner is provided on the base at the opposite side of the receptacle for aligning the exposed end portions of the optical fibers relative to each other and relative to the properly positioned ferrule body.

Claims

1. A fixture for use in fabricating a connector ferrule for a fiber optic cable which includes a plurality of generally parallel optical fibers, comprising:

a base;

a receptacle on the base for receiving and properly positioning a ferrule body;

a cable locating means on the base at one side of the receptacle for positioning the cable inserted in the ferrule body, with exposed end portions of the optical fibers projecting from the ferrule body at an opposite side of the receptacle; and

a fiber aligning means on the base at said opposite side of the receptacle for aligning the exposed end portions of the optical fibers relative to each other and relative to the properly positioned ferrule body.

2. The fixture of claim 1 wherein said cable locating means include a cable channel leading away from the receptacle.

3. The fixture of claim 2 wherein said fiber optic cable is a ribbon cable, and said cable channel has a major width and a minor depth.

4. The fixture of claim 2, including a cable clamp on the base for holding the cable in the cable channel.

5. The fixture of claim 4 wherein said cable clamp is pivotally mounted on the base for movement between an open position exposing the cable channel to allow positioning the cable therein and a clamping position holding the cable in the channel.

6. The fixture of claim 1 wherein said fiber aligning means include a plurality of generally parallel grooves in a surface adjacent said opposite side of the receptacle.

7. The fixture of claim 6 wherein said fiber aligning means comprises a metal component and said grooves are precision formed in a surface thereof.

8. The fixture of claim 6 wherein said fiber aligning means comprises a crystalline component and said grooves are precision formed in a surface thereof.

9. The fixture of claim 6, including a fiber clamp on the base for holding the fibers in said grooves.

10. The fixture of claim 9 wherein said fiber clamp is pivotally mounted on the base for movement between an open position exposing the grooves to allow positioning the fibers therein and a clamping position holding the fibers in the grooves.

11. The fixture of claim 1 wherein said fiber aligning means is on a carriage movably mounted on the base for movement toward and away from the receptacle.

12. The fixture of claim 11 wherein said ferrule body includes at least one alignment hole, and said carriage includes an alignment post for movement into the hole when the carriage is moved toward the receptacle.

13. A fixture for use in fabricating a connector ferrule for a fiber optic ribbon cable which includes a plurality of generally parallel optical fibers in a line, comprising:

a base;

a receptacle on the base for receiving and properly positioning a ferrule body;

a cable locating means on the base at one side of the receptacle for positioning the cable inserted into the ferrule body, with exposed end portions of the optical fibers projecting from the ferrule body in a line at an opposite side of the receptacle, the cable locating means being in the form of a cable channel leading away from the receptacle, with the cable channel having a major width and a minor depth for receiving and properly positioning the ribbon cable; and

a fiber aligning means on the base at said opposite side of the receptacle for aligning the exposed end portions of the optical fibers relative to each other and relative to the properly positioned ferrule body, the fiber aligning means including a row of generally parallel grooves in a surface adjacent said opposite side of the receptacle for positioning the line of exposed fiber end portions therein.

14. The fixture of claim 13, including a cable clamp on the base for holding the cable in the cable channel.

15. The fixture of claim 14 wherein said cable clamp is pivotally mounted on the base for movement between an open position exposing the cable channel to allow positioning the cable therein and a clamping position holding the cable in the channel.

16. The fixture of claim 13, including a fiber clamp on the base for holding the fibers in said grooves.

17. The fixture of claim 16 wherein said fiber clamp is pivotally mounted on the base for movement between an open position exposing the grooves to allow positioning the fibers therein and a clamping position holding the fibers in the grooves.

18. The fixture of claim 13 wherein said fiber aligning means is on a carriage movably mounted on the base for movement toward and away from the receptacle.

19. The fixture of claim 18 wherein said ferrule body includes at least one alignment hole, and said carriage includes an alignment post for movement into the hole when the carriage is moved toward the receptacle.

20. The fixture of claim 13 wherein said fiber aligning means comprises a metal component and said grooves are precision formed in a surface thereof.

21. The fixture of claim 13 wherein said fiber aligning means comprises a crystalline component and said grooves are precision formed in a surface thereof.