Wavelength division multiplexing optical transmission system and wavelength division multiplexing optical transmission method
US5956166A · kind A · utility
12Cited by
6References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 7, 1996 |
| Grant date | Sep 21, 1999 |
| Priority date | — |
| Expiry date | Aug 7, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J14/0298
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
At a transmission section, different frequencies ranging from f1 to fn corresponding to n channels are generated as channel information, respectively. The signal light (.lambda.1 to .lambda.n) of each channel is modulated at the corresponding frequency (f1 to fn) and multiplexed. At a reception section, in case of selecting the channel of the signal light .lambda.1, the wavelength selection characteristic of a filter is sweep controlled for detecting the frequency f1. The wavelength selection characteristic at the f1 detection is kept as the wavelength selection characteristic of the filter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.