Abstract
Spatially and spectrally resolved imaging has become an important tool for
multimode fiber characterization, both in the realms of group index dispersion
measurement and modal geometry analysis. However, limited resolution in group delay
space, distributed scattering and noise sometimes make the task of identifying
meaningful modal interference figures difficult. In this paper, an application of
multivariate statistical analysis to S2 datasets that effectively isolates mode pair interferences, both
spectrally and spatially, is presented. A method to use those components to retrieve the
power in each mode is also shown.
© 2014 IEEE
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