Laser device, notably for optical pumping, and method of fabricating it
US5717711A · kind A · utility
9Cited by
10References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 20, 1996 |
| Grant date | Feb 10, 1998 |
| Priority date | — |
| Expiry date | Nov 20, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S2302/00
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In a laser device, notably for optical pumping, the wafer includes an expansion segment adjacent the exit to prevent degradation of the exit facet of the semiconductor wafer that constitutes the amplifying part of the laser. The other facet is reflective and a Bragg grating is formed in a coupling fiber disposed near the exit facet. Applications include optical pumping of erbium-doped fiber amplifiers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.