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26 March 2016Modified technique for differential mode delay map measurement by scanning of input/output ends of tested multimode fiber
We present modified technique for differential mode delay map measurement. Here according to well-known methods a
fast laser pulse is also launched into a tested multimode fiber (MMF) via single mode fiber (SMF), which scans core of
MMF under precision offset positions. However unlike known technique formalized in ratified standards, proposed
modification differs by addition scanning of the output end of tested MMF by short tail of SMF. Therefore for each
radial offset position at the input/output MMF ends, the shape of pulse response of launched optical signal is recorded,
that provides to get more informative differential mode delay map. This work presents some results of experimental
approbation of proposed modified technique for differential mode delay map measurement.
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Anton V. Bourdine, Vladimir A. Burdin, Stanislav S. Pashin, Denis E. Praporshchikov, Nikita L. Sevruk, "Modified technique for differential mode delay map measurement by scanning of input/output ends of tested multimode fiber," Proc. SPIE 9807, Optical Technologies for Telecommunications 2015, 98071C (26 March 2016); https://doi.org/10.1117/12.2234576