Novel Inverse Hyperbolic Tangent Fiber For Next Generation Mode Group & Mode Division Multiplexing systems

In this paper, a novel type of multimode fiber (MMF), characterized by an inverse hyperbolic tangent (IHTAN) index profile is proposed and designed for the robust transmission of 14 orbital angular momentum (OAM) mode groups (MG). Large inter group separation (≥1×10-4) is numerically achieved between OAM-MG (14 MG). This clearly outperforms the currently available data channels supported by the standard graded index MMF (OM3) and recent designed OAM-fibers. Various performance metrics such as chromatic dispersion (-76.53 [ps/nm.km]), differential group delay (-10.28 [ps/m]), and the possible use of small-scale multiple input multiple output digital signal processing (MIMO DSP) blocks are evaluated showing that the proposed IHTAN-MMF could be a viable candidate for next generation short haul optical interconnect.