Latching and emi shielding mechanism for an optical module

Patent metadata

Field	Value
Publication number	US-2016266340-A1
Application number	US-201514643933-A
Country	US
Kind code	A1
Filing date	Mar 10, 2015
Priority date	Mar 10, 2015
Publication date	Sep 15, 2016
Grant date	—

Abstract

An example embodiment includes a pluggable active optical cable product configured to maintain engagement of an optical interface included in an optoelectronic module. The pluggable active optical cable product includes a lens connection section which connects a plurality of optical fibers to the optical interface, a clip configured to surround the lens connection section and the optical interface so as to apply a compressive force which urges the lens connection section to connect to the optical interface, an bottom shell which houses the lens connection section, optical interface, and clip, and an upper shell which is configured to be disposed on a surface of the bottom shell when assembled with the bottom shell so as to form an enclosure for the lens connection section, the optical interface, and the clip.

First claim

What is claimed is:

1 . A pluggable active optical cable product configured to maintain engagement of an optical interface included in an optoelectronic module of the pluggable active optical cable product, the pluggable active optical cable product comprising:
a lens connection section which connects a plurality of optical fibers to the optical interface; a clip configured to surround the lens connection section and the optical interface so as to apply a compressive force which urges the lens connection section to connect to the optical interface; a bottom shell which houses the lens connection section, optical interface, and clip; and a top shell which is configured to be disposed on a surface of the bottom shell when assembled with the bottom shell so as to form an enclosure for the lens connection section, the optical interface, and the clip.

2 . The pluggable active optical cable product of claim 1 , wherein the lens connection section comprises a MT ferrule and the optical interface comprises a lens which directs an optical signal from an optical transceiver towards the lens connection section.

3 . The pluggable active optical cable product of claim 1 , the lens connection section further comprising a cable boot section which encloses the plurality of optical fibers and provides a transition between a cable section and the upper shell and bottom shell, the cable boot section including a ferrule and a cable locking mechanism which engages with a portion of at least one of the bottom shell or top shell so as to prevent the ferrule and plurality of optical fibers from moving.

4 . The pluggable active optical cable product of claim 3 , the cable locking mechanism comprising a pair of ramped prongs which extend from opposing sides of the cable boot and which are housed and engaged with slots formed in the bottom shell when the pluggable active optical cable product is assembled.

5 . The pluggable active optical cable product of claim 3 , further comprising an electromagnetic interference shielding material disposed in the interior of the top shell and bottom shell between the lens connection section and the cable boot section.

6 . The pluggable active optical cable product of claim 5 , the electromagnetic interference shielding material comprising an electromagnetic interference shielding gasket disposed on an upper surface of the optical fibers in the interior of the top shell and bottom shell between the lens connection section and the cable boot section.

7 . The pluggable active optical cable product of claim 6 , the electromagnetic interference shielding material further comprising electromagnetic interference shielding tape disposed on an upper surface of the electromagnetic interference shielding gasket in the interior of the top shell and bottom shell between the lens connection section and the cable boot section and being compressed by a rib formed on an interior surface of the top shell when the top shell is assembled on the bottom shell.

8 . The pluggable active optical cable product of claim 7 , the electromagnetic interference shielding material further comprising electromagnetic interference shielding paste disposed along each side of the interior of the top shell and bottom shell between the lens connection section and the cable boot section in a direction parallel to a direction that the plurality of optical fibers extend.

9 . The pluggable active optical cable product of claim 1 , further comprising a latching mechanism, the latching mechanism comprising:
a driver configured to rotate about an axis; and a follower operably connected to the driver, the follower comprising a pair of follower arms each comprising a ramp facing away from the driver and a shoulder facing toward the driver that is configured to engage with a host device to prevent an electronic device from being removed from the host device, wherein, the driver is further configured to slide the follower axially toward a front of the electronic device as the driver slide the follower axially away from the front of the electronic device, the driver further configured to position the follower axially farther away from the front of the electronic device when the driver is positioned in the unlatched position than when the driver is positioned in the latched position.

10 . An integrated active optical cable and optoelectronic module comprising:
an optical interface which interfaces with a port of a host device; a lens connection section which connects a plurality of optical fibers to the optical interface; a clip configured to surround the lens connection section and the optical interface so as to apply a compressive force which urges the lens connection section to connect to the optical interface; a bottom shell which houses the lens connection section, optical interface, and clip; a top shell which is configured to be disposed on a surface of the bottom shell when assembled with the bottom shell so as to form an enclosure for the lens connection section, the optical interface, and the clip; and a latching mechanism configured to rotate about an axis, the latching mechanism comprising a pair of follower arms which engage with the host device when the latching mechanism is in latched position and disengages with the host device when the latching mechanism is in the unlatched position.

11 . The integrated active optical cable of claim 10 , wherein the lens connection section comprises a MT ferrule and the optical interface comprises a lens which directs an optical signal from an optical transceiver towards the lens connection section.

12 . The integrated active optical cable of claim 10 , the lens connection section further comprising a cable boot section which encloses the plurality of optical fibers and provides a transition between a cable section and the top shell and bottom shell, the cable boot section including a ferrule and a cable locking mechanism which engages with a portion of at least one of the bottom shell or top shell so as to prevent the ferrule and plurality of optical fibers from moving.

13 . The integrated active optical cable of claim 12 , the cable locking mechanism comprising a pair of ramped prongs which extend from opposing sides of the cable boot and which are housed and engaged with slots formed in the bottom shell when the pluggable active optical cable product is assembled.

14 . The integrated active optical cable of claim 12 , further comprising an electromagnetic interference shielding material disposed in the interior of the top shell and bottom shell between the lens connection section and the cable boot section.

15 . The integrated active optical cable of claim 14 , the electromagnetic interference shielding material comprising an electromagnetic interference shielding gasket disposed on an upper surface of the optical fibers in the interior of the top shell and bottom shell between the lens connection section and the cable boot section.

16 . The integrated active optical cable of claim 15 , the electromagnetic interference shielding material further comprising electromagnetic interference shielding tape disposed on an upper surface of the electromagnetic interference shielding gasket in the interior of the top shell and bottom shell between the lens connection section and the cable boot section and being compressed by a rib formed on an interior surface of the top shell when the top shell is assembled on the bottom shell.

17 . The integrated active optical cable of claim 16 , the electromagnetic interference shielding material further co

Assignees

• Finisar Corp

Inventors

• Zhang Ranran
• Shi Shamei
• Wang William H

Classifications

• G02B6/4284

  of optical modules with disconnectable electrical connectors (latching arms for electrical connectors H01R13/627) · CPC title

• G02B6/4204

  the coupling comprising intermediate optical elements, e.g. lenses, holograms (encapsulated active devices H01S5/02208) · CPC title

• G02B6/4292 Primary

  the light guide being disconnectable from the opto-electronic element, e.g. mutually self aligning arrangements · CPC title

• G02B6/4245

  Mounting of the opto-electronic elements · CPC title

• G02B6/3893

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