Semiconductor laser device
US4984244A · kind A · utility
20Cited by
5References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 13, 1989 |
| Grant date | Jan 8, 1991 |
| Priority date | — |
| Expiry date | Sep 13, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/2275
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A semiconductor laser device is disclosed which comprises a semiconductor substrate, a striped mesa disposed on the substrate and having an active layer for laser oscillation, a current injection layer disposed on the striped mesa and having a width smaller than that of the striped mesa, and a burying layer disposed on both sides of the current injection layer so as to come into contact with the side walls of the current injection layer, the burying layer being capable of absorbing laser light produce in the active layer and of preventing current from flowing through the outside of the striped mesa.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.