Monolithic multi-emitting laser device
US4255717A · kind A · utility
42Cited by
7References
53Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 30, 1978 |
| Grant date | Mar 10, 1981 |
| Priority date | — |
| Expiry date | Oct 30, 1998 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/4068
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A monolithic laser device produces a plurality of spatially displaced emitting cavities in an active layer of a semiconductor body acting as a waveguide for light wave propagation under lasing conditions. Various means are disclosed to deflect and directly couple a portion of the optical wave propagation into one or more different spatially displaced emitting cavities to improve coherence and reduce beam divergence.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.