Polarization modulation of supervisory signals for reducing interference with data signals
US10230472B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Feb 22, 2017 |
| Grant date | Mar 12, 2019 |
| Priority date | — |
| Expiry date | Feb 22, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J14/06
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A system and method including polarization modulation of supervisory signals for reducing interference with data signals in a wavelength division multiplexed optical communication system. At least one supervisory signal for monitoring a transmission path and/or elements coupled to the transmission path is fast polarization modulated and launched with data signals onto the path. Polarization modulating of the supervisory signal reduces impact of the supervisory signal on the data signals and improves system performance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.