Dual-stage low power optical amplifier
US5280383A · kind A · utility
46Cited by
3References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 2, 1992 |
| Grant date | Jan 18, 1994 |
| Priority date | — |
| Expiry date | Dec 2, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/06758
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A two-stage optical fiber amplifier requiring substantially reduced power comprises a pre-amplifier first-stage operating in the linear region within the small signal limits, and a post-amplifier second-stage operating in a saturated regime providing significant gain compression. The pump power for the pre-amp stage is minimized, and all of the gain compression occurs in the second stage. Minimum pump power and the corresponding amplifier fiber length needed to achieve a predetermined optimum amount of small signal gain required in a given amplifier application may be achieved in variations of the design.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.