Optical head capable of being fitted into a hybrid circuit
US5123067A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 13, 1990 |
| Grant date | Jun 16, 1992 |
| Priority date | — |
| Expiry date | Nov 13, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/4246
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optic head designed to be fitted into a hybrid circuit. This optic head includes at least one optoelectronic semiconductor assembly and one optic fiber in alignment. In order to attach it to a hybrid circuit, the elements are all mounted on a metal wafer which serves as a reference plane. The fiber is brazed or bonded to the wafer by means of a metal tube which supports a lens. Optic head has a second optoelectronic assembly also fixed to the metal wafer, a dichroic mirror or a semi-reflecting plate sends the light beam back to the second assembly. A filter may be provided to improve the separation of the light beams. The present invention finds application to multiplexers, demultiplexers, duplexers and optic couplers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.