OSNR measuring apparatus and OSNR measuring method
US8073325B2 · kind B2 · utility
5Cited by
5References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 31, 2007 |
| Grant date | Dec 6, 2011 |
| Priority date | — |
| Expiry date | Jul 31, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/07953
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An apparatus for measuring an OSNR for a communication channel in a WDM optical communications system includes a signal control unit, a receiving unit, and a measuring unit. The signal control unit controls spectral width reduction for an optical signal sent through a target channel. The receiving unit receives spectral data measured from the optical signal received by the target channel under control of the control unit. The measuring unit, based on the spectral data received by the receiving unit, measures the OSNR of the target channel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.