Method for transmitting WDM optical signal to be amplified by optical amplification repeaters and systems used in same
US5912754A · kind A · utility
32Cited by
6References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 17, 1996 |
| Grant date | Jun 15, 1999 |
| Priority date | — |
| Expiry date | Oct 17, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/2912
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
It is the object of the invention to eliminate a limitation on the transmission distance of a WDM optical transmission system caused by wavelength dependencies of gains of optical amplification repeaters. The transmission characteristic of optical signal of the transmission system against the signal wavelength can be flatted by using plural kinds of the optical amplification repeaters with different gain peak wavelengths, and the longer transmission distance can be obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.