Electromagnetic radiation shield for an optical subassembly
View Patent ↗In one example embodiment, an electromagnetic radiation (EMR) shield includes a central portion, an opening defined in the central portion, a wing attached to and extending outward from the central portion, and a protrusion defined in the wing. The perimeter of the EMR shield is approximately the same size and shape as that of a portion of an associated optical subassembly (OSA).
1. An electromagnetic radiation (EMR) shield comprising:
a central portion;
an opening defined in the central portion;
a wing attached to and extending outward from the central portion; and
a protrusion defined in the wing;
wherein a perimeter of the EMR shield is approximately the same size and shape as that of a portion of an associated optical subassembly (OSA), wherein the opening has a diameter that is smaller than a diameter of a fiber port.
2. The EMR shield as recited in claim 1 , wherein the EMR shield comprises stamped sheet metal.
3. The EMR shield as recited in claim 1 , wherein a portion of a fluid passageway is defined along the perimeter of the central portion of the EMR shield.
4. The EMR shield as recited in claim 1 , wherein each wing is configured to mate with a corresponding structure of an insert mold.
5. The EMR shield as recited in claim 1 , wherein the opening defined in the central portion is substantially centrally located with respect to the central portion.
6. The EMR shield as recited in claim 1 , further comprising one or more additional wings extending outward from the central portion at substantially regular intervals.
7. The EMR shield as recited in claim 1 , further comprising a plurality of bent portions located along the perimeter of the central portion of the EMR shield.
8. An OSA comprising:
a body comprising:
a receptacle that defines a connector port;
a flange extending from the receptacle;
a first barrel extending from the flange and defining a lens;
a second barrel defined within the connector port that defines a fiber port configured to receive an optical fiber, the fiber port having a diameter; and
an EMR shield at least partially embedded in the body, the EMR shield comprising:
a central portion;
a wing attached to and extending outward from the central portion;
a protrusion connected to the wing and/or the central portion that extends outside the body; and
an opening defined in the central portion, wherein the opening has a diameter that is smaller than the diameter of the fiber port.
9. The OSA as recited in claim 8 , wherein the receptacle, flange, first barrel, lens, and second barrel comprise an optically transmissive thermoplastic material.
10. The OSA as recited in claim 8 , wherein the receptacle, flange, first barrel, lens, and second barrel are integral with each other and comprise an optically transmissive thermoplastic material.
11. The OSA as recited in claim 10 , wherein the EMR shield further comprises a plurality of notches located along the perimeter of the central portion of the EMR shield, and embedded in the thermoplastic material.
12. The OSA as recited in claim 8 , further comprising a plurality of bent portions located along the perimeter of the central portion of the EMR shield.
13. The OSA as recited in claim 8 , further comprising a transducer housed in the first barrel.
14. The OSA as recited in claim 8 , wherein the EMR shield comprises stamped stainless steel sheet metal.
15. An optoelectronic device comprising:
a faceplate;
a printed circuit board (PCB); and
an OSA attached to the faceplate and electrically connected to the PCB, the OSA comprising:
a body comprising:
a receptacle that defines a connector port;
a flange extending from the receptacle;
a first barrel extending from the flange and defining a lens;
a second barrel defined within the connector port that defines a fiber port configured to received an optical fiber, the fiber port having a diameter; and
an EMR shield at least partially embedded in the body, the EMR shield comprising:
a central portion;
a wing attached to and extending outward from the central portion;
a protrusion connected to the wing and/or the central portion that extends outside the body and is in electrical contact with the faceplate; and
an opening defined in the central portion, wherein the opening has a diameter that is smaller than the diameter of the fiber port.
16. The optoelectronic device as recited in claim 15 , wherein the OSA has a bulkhead form factor.
17. The optoelectronic device as recited in claim 15 , wherein the receptacle, flange, first barrel, lens, and second barrel are integral with each other and comprise an optically transmissive thermoplastic material.
18. The optoelectronic device as recited in claim 17 , wherein the EMR shield further comprises a plurality of notches located along the perimeter of the central portion of the EMR shield, and embedded in the thermoplastic material.