Distributed feedback laser with loss coupling
US6072812A · kind A · utility
6Cited by
6References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 1, 1997 |
| Grant date | Jun 6, 2000 |
| Priority date | — |
| Expiry date | Aug 1, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/305
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The invention is a semiconductor laser including a grating which is formed by regions of high impurity concentration surrounded by material having a lesser impurity concentration. The use of variations in doping concentration rather than different materials to provide reflection in the grating should simplify device fabrication.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.