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using an OSA to Measure Pmd in the Field-test Case

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using an OSA to Measure Pmd in the Field-test Case

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  • Author: Francis Audet, Raymond Roberge
Polarization mode dispersion1 (PMD) is a critical parameter that can potentially limit fiber-based SONET/SDH transmission rates, as high levels of PMD prevent the transmission of high-speed DWDM, OC-192/STM-64 (10 Gb/s) and OC-768/STM-256 (40 Gb/s) signals. When classifying fibers for these high-revenue applications, it is critical to verify and understand the PMD level, as it has a considerable impact on quality of service (QoS) metrics due to its effect on system bit error rate.

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