Analysis of Orbital Angular Momentum Channels in Bent Inverse Raised Cosine fiber

Abstract

Orbital angular momentum (OAM) has gained a widespread interest in diverse areas especially in telecommunication due to its capability to elevate the capacity transmission and substantially improving the spectral efficiency of optical communication in optical fibers. In this work, we numerically investigate the bending impacts on OAM channels transmitted through inverse raised cosine few mode fiber (IRC-FMF). The obtained results show that the investigated OAM-Fiber supports 8 OAM data carriers, already presented in straight case, even under tight bend (i.e. at bending radius Rb=4 mm) with maximum loss of 0.0001 dB/m. This confirms the great tolerance of IRC-FMF to bending condition and confirms the capability of such fiber to handle robust OAM channels even under realistic environment.