Distributed Measurement of Rayleigh Backscattered Crosstalk for Bidirectional Multicore Fiber Transmissions Using Multi-Channel Optical Time Domain Reflectometry

Yuto Kobayashi,Tetsuya Hayashi,Takemi Hasegawa,Takahiro Suganuma,Inoue Ayumi,Takuji Nagashima,Hirotaka Sakuma,Takahiro Kikuchi,Osamu Shimakawa,Hidehisa Tazawa,Masato Yoshida,Masataka Nakazawa

2022 EUROPEAN CONFERENCE ON OPTICAL COMMUNICATION (ECOC)（2022）

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Abstract

We experimentally demonstrate the in-span nonlinear accumulation of Rayleigh backscattered crosstalk in multicore fibers by novel distributed evaluation technique using multi-channel OTDR, which validates the previously-reported theoretical prediction. We also present the impact of fan-in/fan-out crosstalk on the backscattered crosstalk with experimentally-validated prediction formula. (C) 2022 The Author(s)

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Key words

bidirectional multicore fiber transmissions,distributed evaluation technique,distributed measurement,experimentally-validated prediction formula,fan-in crosstalk,fan-out crosstalk,in-span nonlinear accumulation,multichannel optical time domain reflectometry,multichannel OTDR,Rayleigh backscattered crosstalk

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