Electro-optic connector module

• US 6,588,943 B1
• Filed: 08/07/2000
• Issued: 07/08/2003
• Est. Priority Date: 08/07/2000
• Status: Active Grant

• Current Assignee: Amphenol Corporation
• Original Assignee: Teradyne Incorporated
• Inventors: Howard, William E.
• Primary Examiner(s): Sanghavi, Hemang
• Assistant Examiner(s): Knauss, Scott A
• Application Number:
  US09/633,626
• Time in Patent Office: 1,065 Days
• Field of Search: 385/88-94, 385/49, 385/53, 385/14, 257/80-82, 257/431-433
• US Class Current: 385/88
• CPC Class Codes: G02B 6/4201 Packages, e.g. shape, construction, internal or external details
• CPC Class Codes: G02B 6/428 containing printed circuit boards [PCB]
• CPC Class Codes: G02B 6/4284 of optical modules with disconnectable electrical connectors latching arms for electrical connectors H01R13/627
• CPC Class Codes: G02B 6/4292 the light guide being disconnectable from the opto-electronic element, e.g. mutually self aligning arrangements
• CPC Class Codes: G02B 6/43 Arrangements comprising a plurality of opto-electronic elements and associated optical interconnections
• CPC Class Codes: H01R 12/721 cooperating directly with the edge of the rigid printed circuits

Abstract

An electro-optical connector is described that provides a separable electrical interface for connecting to a circuit board. The optical connection between the fiber and the connector are semi-permanent. Also described is an electro-optical system that transfers signals between two circuit board over an optical fiber where the separable interface within the system is electrical rather than optical. Further described is a fixture with pivoting actuation and retraction for connecting a z-axis pressure mount connector to a circuit board.

Claims

1. A backplane electro-optical connector assembly, which comprises:

a backplane having an optical signal carrier, the optical signal career carrying an optical signal in a first direction parallel to a surface of the backplane;

an actuatable connector fixture mounted on the backplane, the actuatable connector fixture providing an interface capable of receiving a daughter card;

a connector held by the actuatable connector fixture, the connector including an optical/electrical converter coupled to the optical signal carrier and a substrate having a plurality of electrical connection elements; and

the daughter card receivable by the interface of the actuatable connector fixture, the reception of the daughter card by the interface actuating the connector fixture to cause the daughter card to couple with the electrical connection elements of the substrate.

2. The backplane electro-optical connector assembly of claim 1, wherein the optical signal carrier is an optical fiber.

3. The backplane electro-optical connector assembly of claim 1, wherein the optical signal carrier is an array of optical fibers.

4. The backplane electro-optical connector assembly of claim 1, wherein the actuatable connector fixture includes a spring member, the biasing of the spring member causing the daughter card to couple with the plurality of electrical connection elements of the substrate.

5. The backplane electro-optical connector assembly of claim 1, wherein the plurality of electrical connection elements comprises self-retained pressure connection elements.

6. The backplane electro-optical connector assembly of claim 5, wherein the daughter card includes contact pads mateable with the self-retained pressure connection elements of the connector.

7. The backplane electro-optical connector assembly of claim 1, wherein the optical/electrical converter of the connector includes a VCSEL clement.

8. The backplane electro-optical connector assembly of claim 1, wherein the daughter card and the electrical connection elements of the substrate couple in a second direction that is perpendicular to the first direction.

9. The backplane electro-optical connector assembly of claim 1, which further comprises driver electronics for;

the optical/electrical converter attached to the daughter card.

10. The backplane electro-optical connector assembly of claim 1, which further comprises driver electronics for the optical/electrical converter attached to the connector.

11. The backplane electro-optical connector assembly of claim 1, wherein the backplane includes a cut-out portion, the cut-out portion allowing the substrate of the connector to be removable therethrough.

12. An electro-optical connector assembly that provides communication between printed circuit boards where one of the printed circuit boards has an optical signal carrier, the electro-optical connector assembly comprising:

an actuatable connector fixture, the actuatable connector fixture providing an interface capable of receiving one of the printed circuit boards;

a connector including an optical/electrical converter coupled to the optical signal carrier; and

the connector also including a substrate having a plurality of electrical connection elements, the reception of one of the printed circuit boards by the interface of the actuatable connector fixture actuating the connector fixture to cause the electrical connection elements of the substrate to couple with the printed circuit board;

wherein the actuatable connector fixture and connector are mounted on a common substrate.

13. The electro-optical connector assembly of claim 12, wherein the plurality of electrical connection elements comprises self-retained pressure connection elements.

14. The electro-optical connector assembly of claim 12, wherein the optical/electrical converter of the connector includes a VCSEL element.

15. The electro-optical connector assembly of claim 12, which further comprises:

a second actuatable connector fixture, the second actuatable connector fixture providing a second interface capable of receiving one of the printed circuit boards;

a second connector including a second optical/electrical converter coupled to the optical signal carrier; and

the second connector also including a second substrate having a second plurality of electrical connection elements, the reception of one of the printed circuit boards by the second interface of the second actuatable connector fixture actuating the second connector fixture to cause the second electrical connection elements of the second substrate to couple with the printed circuit board.

16. The electro-optical connector assembly of claim 12, which further comprises driver electronics for the optical/electrical converter.