Semiconductor laser device having a semiconductor substrate, a laser chip thereon and spaced photo-detecting portions
US4736231A · kind A · utility
17Cited by
3References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 16, 1985 |
| Grant date | Apr 5, 1988 |
| Priority date | — |
| Expiry date | Oct 16, 2005 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2224/48091
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A semiconductor laser device is disclosed herein in which a semiconductor laser chip is mounted on a surface of a semiconductor substrate at one region and a plurality of photo-detecting portions for receiving laser light emitted from the semiconductor laser chip are provided on the surface of the semiconductor substrate at another region separated from the semiconductor laser chip.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.