Distributed measurement of mode group effective refractive index difference in a few mode optical fibers

Markiewicz, KrzysztofSzostkiewicz, ŁukaszKaczorowski, JakubYang, ZhishengDominguez-Lopez, AlejandroNapierała, MarekNasiłowski, TomaszThévenaz, Luc2022-05-042022-05-042022-05-042022-05-0310.1364/OE.455782https://infoscience.epfl.ch/handle/20.500.14299/187561The possibility to perform distributed measurements of the effective refractive index difference between distinct modes in few mode optical fibers is demonstrated using phase sensitive optical time domain reflectometry. Effective refractive index differences between LP02, LP21a and LP21b modes are measured with for a spatial resolution of 24m.Distributed measurement of mode group effective refractive index difference in a few mode optical fiberstext::journal::journal article::research article