Design and analysis of a highly efficient coupler between a micro/nano optical fiber and an SOI waveguide

作者：Zehua Hong, Linjie Zhou, Xinwan Li*, Weiwen Zou, Xiaomeng Sun, Shuguang Li, et al.
摘要：A compact coupling structure is proposed for highly efficient coupling between a micro/nano fiber and a silicon-on-insulator waveguide. The proposed structure is characterized by high coupling efficiency, wavelength insensitivity, large misalignment tolerance, and easy fabrication. Theoretical analysis and numerical simulation results show that coupling efficiency of >90% can be achieved with a taper length of ～4.5μm.
出版源：Applied Optics, vol. 51, pp. 3410-3415, Jun 1 2012.