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Specialty few mode fiber and its application

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Abstract

We review the design, fabrication and characterization of several specialty few mode fibers (FMFs) including elliptical-core FMF(e-FMF), panda type FMF(P-FMF), and panda type e-FMF(PE-FMF). Then, we demonstrate that the arbitrary spatial rotation for high-order radially asymmetric modes can be simply implemented by manually having the speciality FMF with the capability of mode profile and polarization maintenance twisted. Finally, with benefit of multiple parallel channels within single cladding and easy implementation of multi-input multi-output (MIMO) technique, we present the spatial division multiplexing (SDM) based reflective intensity-modulated fiber optics displacement sensor (RIMFODS). Those specialty FMFs and its corresponding applications have lots of potentials to be further exploited.

© 2018 The Author(s)

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