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Optimized Polarization Mode Dispersion Measurement with “π-Shifted” White Light Interferometry

✍ Scribed by P. Martin; G. LeBoudec; E. Taufflieb; H.C. Lefevre

Publisher
Elsevier Science
Year
1996
Tongue
English
Weight
272 KB
Volume
2
Category
Article
ISSN
1068-5200

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✦ Synopsis

The interferometric method, based on white light interferometry, is a powerful tool to measure the polarization mode dispersion (PMD) of fibers. We propose an improved setup, based on a Michelson interferometer where a λ/4 waveplate is inserted in one arm of the interferometer. We show both theorically and experimentally that this "π-shifted" configuration is optimized for PMD measurements and that the simplicity of the set up makes it an ideal tool for fast analysis of the PMD of long fiber cables.

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Conventional low-coherence interferometry LCI has been employed in Ž . the measurement of polarization mode dispersion PMD of fiber-optic components and fibers. However, the smallest PMD, which can be measured using this technique, is limited by the coherence length of the source. We propose and stu