Estimating optical transmission system penalties induced by polarization mode dispersion (PMD)
US7256876B1 · kind B1 · utility
8Cited by
3References
20Claims
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Key dates
| Filing date | Oct 20, 2005 |
| Grant date | Aug 14, 2007 |
| Priority date | — |
| Expiry date | Oct 20, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/2569
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Polarization mode dispersion (PMD) induced system penalty ε is determined from optical characteristics of an optical wavelength division multiplexed (WDM) signal that is carried on a network. The method involves tapping the optical WDM signal, separating an optical channel from the tapped optical WDM signal, performing a frequency-resolved state of polarization (SOP) measurement on the channel, and computing the PMD-induced system penalty as ε=AL2+BL4, in which A and B are predetermined parameters and L is an SOP string length based on the SOP measurement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.