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The new “multilevel” DP-QPSK coherent modulation scheme improves “traditional” approaches to line-side transponder testing. But manufacturers still require a simple way to test transmitters in manufac...

Service providers must manage and monitor real-time services across complex, multivendor environments to continuously assure customer/user experience expectations are met. Gain end-to-end visibility o...

Applying service assurance early in a VoIP rollout ensures the service is ready at the same time as the network. Operators will be trained. Metrics will be relevant. Critical parameters will be captur...

BrixNGN continually monitors the performance and quality of converged services from the provider edge to end-users to effectively guarantee service level agreements and meet customer requirements, whi...

This article reports and analyzes states of polarization (SOP) and polarization mode dispersion (PMD) measurements on aerial fiber under moderate to severe wind conditions.

This article shows the importance to perform reliability testing in order to determine the long-term behavior of passive components.

This article simplifies polarization mode dispersion, using specific examples and formulas.

This article presents how to measure polarization dependence of DWDM passive devices with the IQS-12004B DWDM Passive Component Test System.