Arrangement for interconnecting an optical fiber to an optical component

• US 5,625,733 A
• Filed: 02/09/1995
• Issued: 04/29/1997
• Est. Priority Date: 02/09/1995
• Status: Expired due to Term

• Current Assignee: Lucent Technologies, Inc. (Nokia Corporation)
• Original Assignee: Lucent Technologies, Inc. (Nokia Corporation)
• Inventors: Frigo, Nicholas J., Walker, James A., Miller, David A. B., Goossen, Keith W.
• Primary Examiner(s): Lee, John D.
• Application Number:
  US08/385,946
• Time in Patent Office: 810 Days
• Field of Search: 385/76-78, 385/88-94, 385/123, 385/139
• US Class Current: 385/88
• CPC Class Codes: G02B 6/3845 ferrules comprising functional elements, e.g. filters
• CPC Class Codes: G02B 6/421 the intermediate optical component consisting of a short length of fibre, e.g. fibre stub
• CPC Class Codes: G02B 6/423 using guiding surfaces for the alignment
• CPC Class Codes: G02B 6/4232 using the surface tension of fluid solder to align the elements, e.g. solder bump techniques flip-chip mounting techniques in assembly of semiconductor devices H01L24/81
• 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

Abstract

An optical subsystem arrangement enables the electrical conductive or non-conductive bonding of an optical device to ferrules containing an optical fiber or to the optical fiber itself. In one embodiment, one or more contacts deposited on an end-face of the ferrule is bonded to one or more contacts on the optical component. Another embodiment is an opto/electrical connector for interconnecting an optical fiber through an optoelectronic component to one or more electrical facilities. Another arrangement enables the interconnecting of a plurality of optical devices to a plurality of optical fibers.

Claims

1. An arrangement for interconnecting a ferrule including an optical fiber to an optical component, comprising

at least two electrically isolated contacts deposited on an end-face of a non-conductive ferrule so as not to substantially affect light being coupled to or from the optical fiber and

the optical component having at least two contacts thereon which are bonded to said at least two contacts on the end-face so as to enable light to be coupled between the optical component and the optical fiber.

2. The arrangement of claim 1 wherein at least one contact on either or both the optical component and ferrule is formed from a single deposited metal.

3. The arrangement of claim 1 wherein at least one contact on either or both the optical component and ferrule is formed by depositing multiple metal layers.

4. The arrangement of claim 1 wherein the optical component includes an optical modulator.

5. The arrangement of claim 1 wherein

said at least two electrical contacts on the ferrule extend from the end-face to a section along the length of the ferrule and

the optical component is an optoelectronic component which communicates an electrical signal over said at least two electrical contacts.

6. The arrangement of claim 5 wherein the optical component is a passive optical device.

7. The arrangement of claim 6 wherein the passive optical device has selective wavelength characteristics.

8. The arrangement of claim 6 wherein the optical device is responsive to certain environmental stimuli.

9. The arrangement of claim 5 wherein the optoelectronic component includes a light-emitting device.

10. The arrangement of claim 5 wherein the optoelectronic component includes a light detector.

11. The arrangement of claim 1 wherein

the optical component includes at least one spacer for determining the spacing between the optical component and the optical fiber core.

12. The arrangement of claim 1 wherein

said at least one contact of either the optical component or ferrule includes a solder bump for alignment of the optical component to the optical fiber.

13. The arrangement of claim 1 wherein at least one contact on at least one of either the optical fiber or optical component is made of a nonconducting material.

14. The arrangement of claim 1 wherein at least one contact is a mechanically compliant material.

15. A method of interconnecting a ferrule including an optical fiber to an optical component, comprising the steps of

depositing, during a single depositing step, at least one contact having a contact portion deposited on an end-face of a non-conductive ferrule so as not to substantially affect light being coupled to or from the optical fiber and

bonding an optical component, including at least one contact which enables alignment, to said at least one contact portion, so as to enable light to be coupled between the optical component and the optical fiber.

16. An arrangement for interconnecting an optical fiber to an optical component, comprising

at least two mounting contacts deposited directly on an end-face of the optical fiber so as not to substantially affect light being coupled to or from a core section of the optical fiber and

the optical component having at least two mounting contacts thereon which are bonded to said at least two contacts on the end-face of the optical fiber so as to enable light to be coupled between the optical component and the optical fiber core.

17. An opto/electrical connector apparatus for interconnecting an optical fiber to one or more electrical facilities, comprising

optical fiber connector means including a ferrule having an optical fiber located therein, said ferrule comprising

a first end mounted in the optical connector means to enable connection to a mating optical fiber connector and

a second end having at least two electrical contacts deposited thereon, each contact having a contact portion deposited on the end-face of the second end and extending along a section of the length of the ferrule, each contact positioned on the end-face so as not to substantially affect light being coupled to or from the optical fiber of the ferrule;

an optical component having at least two electrical contacts thereon which are bonded to said at least two contact portions on the second end so as to enable light to be coupled between the optical component and the optical fiber; and

electrical connector means having

a first end for connecting to a mating electrical connector having one or more electrical facilities and

a second end including a plurality of contacts for electrically connecting the one or more electrical facilities to the at least two electrical contacts on the ferrule.

18. The connector apparatus of claim 17 further comprising a molded housing for encapsulating the connector apparatus except for the first end of the optical fiber connector means and the first end of the electrical connector means.

19. The connector apparatus of claim 18 wherein the molded housing does not encapsulate the plurality of contacts on the second end of said electrical connector and said at least two electrical contacts on the second end of the ferrule.

20. The connector apparatus of claim 17 wherein the optical fiber connector means is an ST-type connector.

21. An opto/electrical connector apparatus for interconnecting an optical fiber to one or more electrical facilities, comprising

optical fiber connector means including a ferrule having an optical fiber located therein, said ferrule comprising

a first end mounted in the optical connector means to enable connection to a mating optical fiber connector and

a second end bonded to an optical lens component so as to enable light to be coupled between the optical lens component and the optical fiber;

and

electrical connector means having

a first end for connecting to a mating electrical connector having one or more electrical facilities, and

a second end connected to an opto/electrical device for interfacing the one or more electrical facilities to light passing through the optical lens component.