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Read between the Lines of PMD-Tester Specifications

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Read between the Lines of PMD-Tester Specifications

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  • Author: Francis Audet
If you have recently looked at the specifications for polarizationmode-dispersion (PMD) test equipment, you might have noticed that some vendors quote PMD uncertainty in “weak-mode coupling” condition, while others talk about “strong-mode coupling” condition. What do these two concepts refer to? This document will explain the two types of mode coupling and show that they are as different as apples and oranges.

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