Fiber optic connector
View Patent ↗The present invention provides a fiber optic jack for routing optical signals. In another aspect, the present invention provides a fiber optic connector with accurate alignment that may be used with, among other things, the fiber optic jack.
1. A fiber optic connector, comprising:
an optical assembly comprising:
a lens;
a lens holder in which the lens is disposed; and
an optical fiber holder holding an end of an optical fiber, the optical fiber holder being configured and positioned such that light exiting the end of the optical fiber will be received by the lens, wherein
the lens is positioned and configured to substantially collimate light exiting the optical fiber held by the optical fiber holder, and
the optical assembly has an optical axis along which the substantially collimated light will travel; and
an elongate hollow alignment sleeve having a centerline axis extending from a rear end of the sleeve to a front end of the sleeve, wherein
the lens is positioned between the end of the optical fiber and the rear end of the alignment sleeve,
the centerline axis of the alignment sleeve is substantially parallel with the optical axis of the optical assembly so that the substantially collimated light will enter the hollow alignment sleeve at the rear end and exit the hollow alignment sleeve at the front end, and
the alignment sleeve is substantially undeformable.
2. The fiber optic connector of claim 1 , wherein the optical fiber holder is integrally part of the lens holder.
3. The fiber optic connector of claim 1 , wherein the optical fiber holder is a ferrule having a first portion housed within a cavity formed by an end portion of the lens holder and having a second portion defining a cavity for receiving an end of an optical fiber, wherein the first portion has a free optical path that connects the cavity with a hole in the tip of the first portion of the ferrule.
4. The fiber optic connector of claim 3 , wherein the diameter of the free optical path is substantially less than the diameter of the cavity.
5. The fiber optic connector of claim 3 , wherein a front end of the first portion of the ferrule is located at a focal point of the lens so that the lens will collimate the light exiting the front end of the first portion of the ferrule.
6. The fiber optic connector of claim 3 , wherein the lens is a ball lens.
7. The fiber optic connector of claim 1 , wherein the lens is a ball lens.
8. The fiber optic connector of claim 1 , wherein the length of the alignment sleeve is substantially greater than the width of the alignment sleeve.