Computerized intelligent optical amplifier for multi-channel optical networks
US6198571A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 31, 1999 |
| Grant date | Mar 6, 2001 |
| Priority date | — |
| Expiry date | Mar 31, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/1305
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical amplifier having a substantially flat response over a multi-channel bandwidth for signals which have different input levels. It utilizes input and output photodetectors for detecting amplitude variations. The gain can be determined by a microprocessor receiving signals derived from the photodetectors, which causes change in the gain of the amplifier. The microprocessor calculates output ASE noise content at different amplifier input levels and subtracts that noise from the total power received by the output detector thereby determining an accurate amplifier gain value. The gain setting offered by the amplifier will then be the same as what is desired by a network management system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.