Laser/detector hybrid with mirror source and diffracted return beam
US5285062A · kind A · utility
16Cited by
10References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 14, 1992 |
| Grant date | Feb 8, 1994 |
| Priority date | — |
| Expiry date | Apr 14, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/123
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention provides a semiconductor laser and a photodector on a supporting substrate. The supporting substrate is inserted into a housing with a 45 degree mirror for the purpose of redirecting the light emitting through the edge of the laser to propagate along the optical axis of the hybrid device. A hologram lens is mounted at the output end of the hybrid device to diffract the returned beam to the photosensitive ares of the detector without returning through the mirror.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.