Optical fiber amplifier
US5218608A · kind A · utility
41Cited by
3References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 28, 1992 |
| Grant date | Jun 8, 1993 |
| Priority date | — |
| Expiry date | Jan 28, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S2303/00
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A signal light is coupled by a light coupler/splitter (31) with a 0.98 micron first pumping light (.lambda..sub.1) generated by a first pumping light source (21), and the coupled light is launched into an Er-doped optical fiber (1). The signal light is optically amplified in the Er-doped optical fiber. A 1.48 micron second pumping light (.lambda..sub.2) generated by second pumping light source (22) is launched into the Er-doped optical fiber (1) with a light coupler/splitter (32). This 1.48 micron pumping light contributes boost the amplified signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.