Method of activating optical communication system, channel increasing/decreasing method, and computer-readable recording medium
US6839160B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 26, 2002 |
| Grant date | Jan 4, 2005 |
| Priority date | — |
| Expiry date | Aug 8, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2210/258
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The invention relates to a method of activating an optical communication system comprising a plurality of optical amplifiers having an optical amplifier, between optical transmission lines in which wavelength-division multiplex optical signals are transmitted. The method comprises steps of: generating a desired slope in a desired wavelength range of a gain wavelength curve of the optical amplifier; adjusting an output of the optical amplifier to a desired output level; performing the above two steps in a plurality of optical repeater stations, the steps being carried out in sequence from the first to the last optical repeater stations; and adjusting a level in each optical signal in the wavelength-division multiplex optical signal so as to have substantially constant optical signal-to-noise ratios in the optical signals to be received. Activating the optical communication system according to this procedure allows proper execution of gain slope compensation, output control, and pre-emphasis control.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.