Optical amplifier
US5572356A · kind A · utility
6Cited by
4References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 14, 1995 |
| Grant date | Nov 5, 1996 |
| Priority date | — |
| Expiry date | Jul 14, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/1608
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention provide an optical amplifier that excites a rare earth element dopant in a light transmitting medium with exciting light generated from a semiconductor laser such that the light propagating through the light transmitting medium is amplified, wherein drive power being supplied to drive the semiconductor laser is modulated with an AC component having a higher frequency than the frequency corresponding to the lifetime of the excited state of the ion of the rare earth element, and the drive current from the drive power has an amplitude which is higher than the threshold value of the semiconductor laser.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.