Semiconductor laser array device
US4903274A · kind A · utility
17Cited by
1References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 18, 1988 |
| Grant date | Feb 20, 1990 |
| Priority date | — |
| Expiry date | May 18, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/4068
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A semiconductor laser array device comprising a substrate with a plurality of grooves and an active layer disposed over the substrate, resulting in optical waveguides within the active layer corresponding to the grooves, wherein the grooves are disposed over the entire area of the substrate and a means for preventing the injection of current into some of the grooves that are positioned outside of the central area of the substrate is disposed whereby the other grooves positioned in the central area of the substrate consitute a laser array portion of the semiconductor laser array device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.