A novel few mode fiber with low loss and low crosstalk

A novel six-cores few-mode fiber with low loss and low crosstalk is proposed in this paper. The fiber characteristics based on the full-vector Finite Element Method (FEM) show that two supermodes with low loss, low crosstalk and low Differential Mode Group Delay (DMGD) are achieved. The proposed fiber performs DMGD flattened profile at a large wavelength range.