Self-regulating multiwavelength optical amplifier module for scalable lightwave communications systems
US5392154A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 30, 1994 |
| Grant date | Feb 21, 1995 |
| Priority date | — |
| Expiry date | Mar 30, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2210/258
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
In a multiwavelength lightwave communications system automatic self-power regulation on a channel-by-channel basis is achieved with a cascade of multiwavelength amplifier modules (200), wherein each multiwavelength amplifier module in the cascade includes a plurality of pump-shared parallel fiber amplifiers (208) operated in gain-saturation and connected between an optical demultiplexer (203) and multiplexer (209). An optional first gain stage (202) improves performance with higher optical signal-to-noise ratio. By self-regulating the power in each channel, the communications system is scalable, allowing the system to grow without deleterious effects due to power spread.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.