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Modal structure from far-field measurements

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1 Author(s)
R. T. Hammond ; US Naval Air Dev. Center, Warminster, PA, USA

It is shown how and to what extent the modal structure of a multimode fiber may be found from the far-field radiation pattern. Although specific inverse integral coefficient type formulas are not obtained for each modal weight, the analysis shows how to mathematically isolate the L from m modes using a polarizer, and then deduce the modal coefficients from the result

Published in:

IEEE Journal of Quantum Electronics  (Volume:24 ,  Issue: 12 )