Automatic gain control and dynamic equalization of erbium doped optical amplifiers in wavelength multiplexing networks
US6751014B2 · kind B2 · utility
10Cited by
60References
21Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 19, 2001 |
| Grant date | Jun 15, 2004 |
| Priority date | — |
| Expiry date | Aug 10, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/0687
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A system and method for controlling alignment of laser center wavelengths and filter passband center wavelengths in optical amplifiers for purposes of providing automatic gain control and eliminating unwanted noise. The system and method exploits a wavelength-locked loop servo-control circuit and methodology that enables real time mutual alignment of a laser pump signal having a peaked spectrum function including a center wavelength and a wavelength selective device such as an optical filter implementing a peaked passband function including a center wavelength in an optical amplifier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.