Method for measuring dispersion coefficient of optical fiber and network device
US10659153B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 6, 2019 |
| Grant date | May 19, 2020 |
| Priority date | — |
| Expiry date | Jul 6, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/27
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The application provides a method for measuring a dispersion coefficient of an optical fiber. A network device sends a first optical supervisory channel (OSC) measurement signal and a second OSC measurement signal, where wavelengths of the first OSC measurement signal and the second OSC measurement signal are different. The network device receives the returned first OSC measurement signal and second OSC measurement signal, where the first OSC measurement signal and the second OSC measurement signal are transmitted through a first optical fiber and a second optical fiber to return to the network device, and the first optical fiber and the second optical fiber are a to-be-tested optical fiber. The network device determines a delay difference between the received first OSC measurement signal and second OSC measurement signal. The network device determines a dispersion coefficient of the to-be-tested optical fiber based on the delay difference.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.