Semiconductor laser module and optical fiber amplifier
US5845030A · kind A · utility
37Cited by
3References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 8, 1997 |
| Grant date | Dec 1, 1998 |
| Priority date | — |
| Expiry date | Apr 8, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/02415
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A semiconductor laser module includes a semiconductor laser having an active region between a light-reflecting surface and a light-exit surface thereof, and an optical fiber optically coupled to the semiconductor laser and including an optical fiber diffraction grating. The optical fiber diffraction grating selectively reflects light within a predetermined wavelength band. The wavelength band has a width larger than a wavelength interval of a longitudinal mode of light resonating between the light-reflecting surface and the light-exit surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.