Adapter for interfacing optical fiber connectors with one another, and a method

Patent metadata

Field	Value
Publication number	US-9335488-B2
Application number	US-201414258111-A
Country	US
Kind code	B2
Filing date	Apr 22, 2014
Priority date	Apr 22, 2014
Publication date	May 10, 2016
Grant date	May 10, 2016

Abstract

An adapter is provided for interfacing MOF connectors with one another where the MOF connectors have optical pathways that bend by a non-zero-degree angle (e.g., 90°±15°) in between the ends of the optical fibers held in the connectors and the output facets of the connectors. The adapter is configured to mate with two such connectors and to bring their optical pathways into precise optical alignment with one another.

First claim

What is claimed is:

1. An adapter for optically interfacing a first multi-optical fiber (MOF) connector with a second MOF connector, the first and second MOF connectors being identical in type and having first and second optics systems, respectively, that bend light at non-zero-degree angles, the adapter comprising:
a first mounting surface disposed on a first side of the adapter, the first side of the adapter having at least one mating feature thereon for mating with at least one mating feature of the first MOF connector, wherein an optical window of the adapter passes through the first mounting surface, wherein when said at least one mating feature of the first mounting surface is mated with said at least one mating feature of the first MOF connector, a first optical facet of the first MOF connector is adjacent to and aligned with the optical window; and
a second mounting surface disposed on a second side of the adapter opposite the first mounting surface, the second side of the adapter having at least one mating feature thereon for mating with at least one mating feature of the second MOF connector, wherein the optical window passes through the second mounting surfaces such that the first and second mounting surfaces are optically interconnected by the optical window, wherein when said at least one mating feature of the second side is mated with said at least one mating feature of the second MOF connector, a second optical facet of the second MOF connector is adjacent to and aligned with the optical window and with the first optical facet of the first MOF connector to allow optical signals to be optically coupled between the facets of first and second MOF connectors via the optical window of the adapter.

2. The adapter of claim 1 , wherein the first and second MOF connectors each have a plurality of optical pathways, the first MOF connector is connected to proximal ends of a first plurality of optical fibers, and wherein the second MOF connector is connected to proximal ends of a second plurality of optical fibers, and wherein light passing out of the proximal ends of the first plurality of optical fibers is reflected by an optics system of the first parallel optical connector module at a non-zero angle toward the first facet of the first MOF connector and passes through the optical window of the first facet, through the optical window of the adapter, through the second facet of the second MOF connector, and wherein an optics system of the second MOF connector reflects the light that enters therein through the second facet by the non-zero angle into the proximal ends of the second plurality of optical fibers.

3. The adapter of claim 2 , wherein said at least one mating feature of the first side of the adapter is a first pair of guide holes and wherein said at least one mating feature of the first MOF connector is a first pair of guide pins that are shaped and sized to mate with the first pair of guide pins, and wherein said at least one mating feature of the second side is a second pair of guide holes and wherein said at least one mating feature of the second MOF connector is a second pair of guide pins that are shaped and sized to mate with the second pair of guide holes.

4. The adapter of claim 3 , wherein the first and second mounting surfaces are parallel to one another.

5. The adapter of claim 3 , wherein the guide holes of the first pair of guide holes have axes that are normal to the first mounting surface of the adapter, and wherein the guide holes of the second pair of guide holes have axes that are normal to the second mounting surface of the adapter.

6. The adapter of claim 2 , wherein the first and second MOF connectors include first and second connector dust covers, respectively.

7. The adapter of claim 6 , wherein the adapter includes first and second adapter dust covers, the first adapter dust cover being pivotally coupled to the adapter by a first pivot-coupling feature disposed on the first side of the adapter on a first end of the adapter, and wherein the first pivot-coupling feature enables the first adapter dust cover to be pivoted from a closed position into an opened positioned and from the opened position into the closed position, wherein in the closed position, the first MOF connector is encapsulated in between inner surfaces of the first adapter dust cover and the first mounting surface, and wherein the second adapter dust cover is pivotally coupled to the adapter by a second pivot -coupling feature disposed on the second side of the adapter on a second end of the adapter, and wherein the second pivot-coupling feature enables the second adapter dust cover to be pivoted from a closed position into an opened positioned and from the opened position into the closed position, wherein in the closed position of the second adapter dust cover, the second MOF connector is encapsulated in between inner surfaces of the second adapter dust cover and the second mounting surface.

8. The adapter of claim 7 , wherein the first pivot-coupling feature is also configured to pivotally couple to the first connector dust cover to assist in mounting the first MOF connector on the first mounting surface, and wherein the second pivot-coupling feature is also configured to pivotally couple to the second connector dust cover to assist in mounting the second MOF connector on the second mounting surface.

9. The adapter of claim 6 , wherein the adapter includes first and second adapter dust covers, the first adapter dust cover being pivotally coupled to the adapter by a first pivot-coupling feature disposed on the first side of the adapter on a first end of the adapter, and wherein the first pivot-coupling feature enables the first adapter dust cover to be pivoted from a closed position into an opened positioned and from the opened position into the closed position, wherein in the closed position, the first MOF connector is encapsulated in between inner surfaces of the first adapter dust cover and the first mounting surface, and wherein the second adapter dust cover is pivotally coupled to the adapter by a second pivot -coupling feature disposed on the second side of the adapter on the first end of the adapter, and wherein the second pivot-coupling feature enables the second adapter dust cover to be pivoted from a closed position into an opened positioned and from the opened position into the closed position, wherein in the closed position of the second adapter dust cover, the second MOF connector is encapsulated in between inner surfaces of the second adapter dust cover and the second mounting surface.

10. The adapter of claim 9 , wherein the first pivot-coupling feature is also configured to pivotally couple to the first connector dust cover to assist in mounting the first MOF connector on the first mounting surface, and wherein the second pivot-coupling feature is also configured to pivotally couple to the second connector dust cover to assist in mounting the second MOF connector on the second mounting surface.

11. The adapter of claim 1 , wherein said at least one mating feature of the first side of the adapter is a first pair of guide holes and wherein said at least one mating feature of the first MOF connector is a first pair of guide pins that are shaped and sized to mate with the first pair of guide pins, and wherein the first MOF connector is a Prizm® connector, and wherein said at least one mating feature of the second side is a second pair of guide holes and wherein said at least one mating feature of the second MOF connector is a second pair of guide pins that are shaped and sized to mate with the second pair of guide holes, and wherein the second MOF connector is a Prizm® connector.

12. A metho

Assignees

• Avago Technologies General Ip

Inventors

• Chan Seng-Kum

Classifications

• G02B6/3885

  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

• G02B6/3825 Primary

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

• G02B6/3879

  Linking of individual connector plugs to an overconnector, e.g. using clamps, clips, common housings comprising several individual connector plugs · CPC title