Small form factor fiber optic connector with crossed angle polished ferrules and polishing cap therefor

Patent metadata

Field	Value
Publication number	US-12197017-B2
Application number	US-202318224421-A
Country	US
Kind code	B2
Filing date	Jul 20, 2023
Priority date	Jul 13, 2020
Publication date	Jan 14, 2025
Grant date	Jan 14, 2025

Abstract

A fiber optic connector housing has a first portion to receive fiber optic ferrule holders and fiber optic ferrules. The fiber optic connector housing also includes a second portion for use during polishing and before one of the fiber optic ferrule holders is rotated 180°. The second portion is, removed to allow for rotation and a third portion is attached to the first portion for connection with another fiber optic connector or assembly.

First claim

We claim:

1. A small form factor fiber optic connector, comprising:
a first fiber optic ferrule and a second fiber optic ferrule;
a body of the small form factor fiber optic connector, wherein the body has a pair of short sides separated by a height of the body and a pair of long sides separated by a width of the body, the height being more than the width, and
two ferrule assemblies disposed within an opening of the body, each of the two ferrule assemblies comprising respectively the first fiber optic ferrule and the second fiber optic ferrule, the first fiber optic ferrule spaced apart from the second fiber optic ferrule along the height and a first ferrule holder and a second ferrule holder to respectively hold the first fiber optic ferrule and the second fiber optic ferrule, the first fiber optic ferrule and the second fiber optic ferrule each extending forwardly of and away from a front end of the respective first ferrule holder and the second ferrule holder;
a latch positioned on one of the pair of short sides and configured to attach the small form factor fiber optic connector to an adapter or a receptacle, the latch located on a same side relative to each of the first fiber optic ferrule and the second fiber optic ferrule and generally extending longitudinally along the body of the small form factor fiber optic connector, the latch having a clearance between the latch and the body and is deflectable under an external force to a stressed release position from a relaxed locking position that restricts longitudinal movement when attached to the adapter or receptacle; and
a pair of lead-in tubes extending respectively rearward of the first fiber optic ferrule and the second fiber optic ferrule, each of the pair of lead-in tubes having an opening at a rear end to respectively receive a first optical fiber and a second optical fiber for termination at the first fiber optic ferrule and the second fiber optic ferrule, respectively,
wherein an end face of the first fiber optic ferrule is at a first orientation and an end face of the second fiber optic ferrule is at a second orientation relative to a longitudinal axis, the second orientation being different from the first orientation in the small form factor fiber optic connector.

2. The small form factor fiber optic connector of claim 1 , wherein each of the pair of lead-in tubes is engaged with a respective flange rearward of the first fiber optic ferrule and the second fiber optic ferrule.

3. The small form factor fiber optic connector of claim 1 , wherein the latch has a free end.

4. The small form factor fiber optic connector of claim 1 , wherein the first orientation is 180° from the second orientation relative to the longitudinal axis.

5. The small form factor fiber optic connector of claim 1 , wherein the first fiber optic ferrule and the second fiber optic ferrule are disposed on opposite sides of the longitudinal axis.

6. The small form factor fiber optic connector of claim 1 , wherein the first fiber optic ferrule is closer to a top than to a bottom of the body.

7. The small form factor fiber optic connector of claim 6 , wherein the latch is closer to the first fiber optic ferrule than to the second fiber optic ferrule.

8. The small form factor fiber optic connector of claim 1 , wherein the latch is closer to the first fiber optic ferrule than to the second fiber optic ferrule.

9. The small form factor fiber optic connector of claim 1 , wherein the body has an opening to accept a tuning tool to turn the first fiber optic ferrule or the second fiber optic ferrule.

10. The small form factor fiber optic connector of claim 9 , wherein the body has an opening to accept a tuning tool to turn only one of the first fiber optic ferrule or the second fiber optic ferrule.

11. The small form factor fiber optic connector of claim 1 , wherein the body is a two-piece body.

12. A small form factor fiber optic connector, comprising:
a first fiber optic ferrule and a second fiber optic ferrule;
a body of the small form factor fiber optic connector, wherein the body has a pair of short sides separated by a height of the body and a pair of long sides separated by a width of the body, the height being more than the width, and
two ferrule assemblies disposed within the body, each of the two ferrule assemblies comprising respectively the first fiber optic ferrule and the second fiber optic ferrule, the first fiber optic ferrule spaced apart from the second fiber optic ferrule along the height and a first ferrule holder and a second ferrule holder to respectively hold the first fiber optic ferrule and the second fiber optic ferrule, the first fiber optic ferrule and the second fiber optic ferrule each extending forwardly of and away from a front end of the respective first ferrule holder and the second ferrule holder;
a latch positioned on one of the pair of short sides and configured to attach the small form factor fiber optic connector to an adapter or a receptacle, the latch extending substantially longitudinally along the body of the small form factor fiber optic connector, at least a portion of the latch separated by a clearance from the body and is deflectable under an external force to a stressed release position from a relaxed locking position that restricts longitudinal movement when attached to the adapter or receptacle; and
a pair of lead-in tubes extending respectively rearward of the first fiber optic ferrule and the second fiber optic ferrule, each of the pair of lead-in tubes having an opening at a rear end to respectively receive a first optical fiber and a second optical fiber for termination at the first fiber optic ferrule and the second fiber optic ferrule, respectively,
wherein an end face of the first fiber optic ferrule is at a first orientation and an end face of the second fiber optic ferrule is at a second orientation relative to a longitudinal axis, the second orientation being different from the first orientation in the small form factor fiber optic connector.

13. The small form factor fiber optic connector of claim 12 , wherein each of the pair of lead-in tubes is engaged with a respective flange rearward of the first fiber optic ferrule and the second fiber optic ferrule.

14. The small form factor fiber optic connector of claim 12 , wherein the latch has a free end.

15. The small form factor fiber optic connector of claim 12 , wherein the first orientation is 180° from the second orientation relative to the longitudinal axis.

16. The small form factor fiber optic connector of claim 12 , wherein the first fiber optic ferrule and the second fiber optic ferrule are disposed on opposite sides of the longitudinal axis.

17. The small form factor fiber optic connector of claim 12 , wherein the first fiber optic ferrule is closer to a top than to a bottom of the body.

18. The small form factor fiber optic connector of claim 17 , wherein the latch is closer to the first fiber optic ferrule than to the second fiber optic ferrule.

19. The small form factor fiber optic connector of 12 , wherein the latch is closer to the first fiber optic ferrule than to the second fiber optic ferrule.

20. The small form factor fiber optic connector of claim 12 , wherein the body has an opening to accept a tuning tool to turn the first fiber optic ferrule or the second fiber optic ferrule.

21. The small form factor fiber optic connector of claim 20 , wherein the body has an opening to accept a tuning tool to turn only one of the first fiber optic ferrule or the s

Assignees

• Us Conec Ltd

Inventors

• Higley Jason
• Cloud Mitchell
• Childers Darrell R

Classifications

• G02B6/3863

  fabricated by using polishing techniques (grinding of the fibre ends B24B19/226) · CPC title

• G02B6/3825

  with an intermediate part, e.g. adapter, receptacle, linking two plugs · CPC title

• G02B6/3893

  Push-pull type, e.g. snap-in, push-on · CPC title

• G02B6/3878

  comprising a plurality of ferrules, branching and break-out means · CPC title

• G02B6/3871 Primary

  Ferrule rotatable with respect to plug body, e.g. for setting rotational position (adjusting fibre within the ferrule, G02B6/3843); Fixation of ferrules after rotation · CPC title