Design and analysis of a highly efficient coupler between a micro/nano optical fiber and an SOI waveguide |
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| Authors: | Hong Zehua Zhou Linjie Li Xinwan Zou Weiwen Sun Xiaomeng Li Shuguang Shen Jianguo Luo Haimei Chen Jianping |
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| Affiliation: | State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, China. |
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| Abstract: | 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 ～4.5 μm. |
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