Highly Efficient Reciprocal Mode Converters

Abstract

Multimode photonics have obtained enormous attention from researchers in the past decade, making mode converters essential for photonic integrated circuits. We, in this paper, are proposing arc bent waveguide-based, highly efficient, compact $(5.5\mu \mathrm{m})$, and reciprocal $\text{TE}_{0}-\text{TE}_{1}$ and $\text{TE}_{1}-\text{TE}_{0}$ mode converter with a conversion efficiency of 96.28% and 95.73%, respectively.