Intermodal measurements in few-mode fibers with phase- sensitive OTDR

Markiewicz, KrzysztofKaczorowski, JakubYang, ZhishengSzostkiewicz, LukaszDominguez-Lopez, AlejandroNapierała, MarekNasiłowski, TomaszThévenaz, Luc2021-11-102021-11-102021-11-10202010.1364/OFS.2020.T3.4https://infoscience.epfl.ch/handle/20.500.14299/182973We experimentally verify the possibility of measuring the difference in effective refractive index between higher-order-modes using a phase-sensitive OTDR, indicating that it is possible to measure the average difference over long fiber spans.Intermodal measurements in few-mode fibers with phase- sensitive OTDRtext::conference output::conference proceedings::conference poster