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A New Test Method for the Quantitative Determination of “Bad” PMD Sections Along an Installed Fiber Link

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A New Test Method for the Quantitative Determination of “Bad” PMD Sections Along an Installed Fiber Link

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  • Author: André Girard, Francis Audet, Hongxin Chen, Gregory W. Schinn
This white paper introduces a novel measurement method using a tunable random-scrambling POTDR (RS-POTDR) [2-4] . The test method is based on the recently-developed theory of random scrambled state-of-polarization analysis (SSA) [5-10] and is implemented in a compact, robust and economical design suitable for field applications: EXFO’s FTB-5600 Distributed PMD Analyzer. Experimental results demonstrate its capability for measuring distributed PMD along fibers. Field trial measurements have enabled to identify ‘bad’ PMD sections. Once identified, these ‘bad’ sections can then be replaced.

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