Optical amplifying transmission system and optical amplifier
US6115173A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 7, 1998 |
| Grant date | Sep 5, 2000 |
| Priority date | — |
| Expiry date | Dec 7, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/2557
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
In an optical fiber transmission line between two terminal stations, an input side wavelength converter for up-shifting a wavelength of a signal light is inserted at a front part of each of the optical amplifiers and an output side wavelength converter for down-shifting a wavelength of a signal light is inserted at a rear step of the optical amplifiers. Signal lights transmit in a wavelength band shorter or longer than the zero dispersion wavelength of the transmission optical fiber on said transmission optical fibers. The input side wavelength converter converts the wavelength of the signal lights from the transmission optical fibers within the amplifying bandwidth of the optical amplifiers and the output side wavelength converter returns the wavelength of the signal lights optically amplified by the optical amplifiers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.