Optical transmission system and method using wavelength division multiplex
US5937116A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 26, 1997 |
| Grant date | Aug 10, 1999 |
| Priority date | — |
| Expiry date | Nov 26, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J14/0201
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A system for transmitting, over an optical transmission path using an optical fiber, wavelength-multiplex signals of a plurality of channels to which different wavelengths are assigned, the system comprising an optical transmission terminal station for transmitting the wavelength-multiplex signals to the optical transmission path, an optical reception terminal station for receiving the wavelength-multiplex signals from the optical transmission path, and at least one of ADD/Drop-Multiplexer nodes each including at least a demultiplexer unit for demultiplexing a plurality of channels to a channel in accordance with a given wavelength and a multiplexer unit for multiplexing a plurality of channels in accordance with a given wavelength, wherein optical pulses having pulse waveforms with an equal full-width at half-maximum are applied to the optical signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.