Optical coupling

• US 5,835,654 A
• Filed: 11/06/1997
• Issued: 11/10/1998
• Est. Priority Date: 12/08/1995
• Status: Expired due to Term

• Current Assignee: Avago Technologies General IP PTE Limited (Broadcom, Inc.)
• Original Assignee: Lucent Technologies, Inc. (Nokia Corporation)
• Inventors: Bergmann, Ernest Eisenhardt
• Primary Examiner(s): Ullah, Akm E.
• Application Number:
  US08/965,219
• Time in Patent Office: 369 Days
• Field of Search: 385/56, 385/76, 385/88-93, 385/139, 385/147
• US Class Current: 385/88
• CPC Class Codes: G02B 2006/4297 having protection means, e.g. protecting humans against accidental exposure to harmful laser radiation
• CPC Class Codes: G02B 6/3809 without a ferrule embedding the fibre end, i.e. with bare fibre end
• CPC Class Codes: G02B 6/3813 for transmission of high energy beam coupling high energy sources and light guides G02B6/4296
• CPC Class Codes: G02B 6/383 Hermaphroditic connectors, i.e. two identical plugs mating with one another, each plug having both male and female diametrically opposed engaging parts; electric hermaphroditic coupling H01R24/84, H01R13/28

Abstract

An optical coupling prevents light from entering free space when disengaged. The optical coupling includes a receptacle and a connector plug. The receptacle has an opening and includes an optical radiation source, and a beam stop. The optical radiation engages the beam stop when the receptacle is disengaged from the connector plug. When the connector plug is engaged into the receptacle opening, optical radiation from the receptacle is emitted on the radiation receptor.

Claims

1. A hermaphroditic connector comprising a body member and an opening adapted for engaging another hermaphroditic connector, an optical radiation source mounted in the body member, said body member including a reflecting surface spaced from the optical radiation source for reflecting optical radiation substantially toward the opening, and including a beam stop for receiving reflected optical radiation from the reflecting surface when the connector is disengaged to another hermaphroditic connector, wherein said beam stop comprises a wall that encloses at least a portion of said opening.

2. The hermaphroditic connector according to claim 1 including a lock for securing the two connectors so that optical radiation reflected from one reflecting surface engages the other reflecting surface to form an optical radiation path from one connector to the other.

3. The hermaphroditic connector according to claim 1 wherein said reflecting surface comprises a concave surface.

4. The hermaphroditic connector according to claim 1 wherein said reflecting surface includes a surface finish for reflecting optical radiation.

5. The hermaphroditic connector according to claim 1 including a radiation receptor for receiving optical radiation emitted from a connected coupling.

6. A hermaphroditic connector comprising a body member and an opening adapted for engaging another hermaphroditic connector, a support for mounting an optical radiation source in the body member, and said body member including a reflecting surface spaced from the optical radiation source for reflecting optical radiation substantially toward the opening, and including a beam stop for receiving reflected optical radiation from the reflecting surface when the connector is disengaged to another hermaphroditic connector, wherein said beam stop comprises a wall that encloses at least a portion of said opening.

7. The hermaphroditic connector according to claim 6 including a lock for securing the two connectors so that optical radiation reflected from one reflecting surface engages the other reflecting surface to form an optical radiation path from one connector to the other.

8. The hermaphroditic connector according to claim 6 wherein said reflecting surface comprises a concave surface.

9. The hermaphroditic connector according to claim 6 wherein said reflecting surface includes a surface finish for reflecting optical radiation.

10. A hermaphroditic connector comprising a body member and an opening adapted for engaging another hermaphroditic connector, a fiber mounted in the body member and adapted for carrying optical radiation, and said body member including a reflecting surface spaced from the fiber for reflecting optical radiation substantially toward the opening, and including a beam stop comprising a wall that encloses at least a portion of said opening for receiving reflected optical radiation from the reflecting surface when the connector is disengaged to another hermaphroditic connector.

11. The hermaphroditic connector according to claim 10 including a lock for securing the two connectors so that optical radiation reflected from one reflecting surface engages the other reflecting surface to form an optical radiation path from one connector to the other.

12. The hermaphroditic connector according to claim 10 wherein said reflecting surface comprises a concave surface.

13. The hermaphroditic connector according to claim 10 wherein said reflecting surface includes a surface finish for reflecting optical radiation.