典型文献
High efficiency,small size,and large bandwidth vertical interlayer waveguide coupler
文献摘要：
Since the advent of three-dimensional photonic integrated circuits,the realization of efficient and compact optical interconnection between layers has become an important development direction.A vertical interlayer coupler between two silicon layers is presented in this paper.The coupling principle of the directional coupler is analyzed,and the traditional method of using a pair of vertically overlapping inverse taper structures is improved.For the coupling of two rectangular waveguide layers,a pair of nonlinear tapers with offset along the transmission direction is demonstrated.For the coupling of two ridge waveguide layers,a nonlinear taper in each layer is used to achieve high coupling efficiency.The simulation results show that the coupling efficiency of the two structures can reach more than 90％ in a wavelength range from 1500 nm to 1650 nm.Moreover,the crosstalk is reduced to less than-50 dB by using multimode waveguides at intersections.The vertical interlayer coupler with a nonlinear taper is expected to realize the miniaturization and dense integration of photonic integrated chips.
文献关键词：
中图分类号：
作者姓名：
Shao-Yang Li;Liang-Liang Wang;Dan Wu;Jin You;Yue Wang;Jia-Shun Zhang;Xiao-Jie Yin;Jun-Ming An;Yuan-Da Wu
作者机构：
State Key Laboratory of Integrated Optoelectronics,Institute of Semiconductors,Chinese Academy of Sciences,Beijing 100083,China;College of Materials Science and Opto-Electronic Technology,University of Chinese Academy of Sciences,Beijing 100049,China;Center of Materials Science and Optoelectronics Engineering,University of Chinese Academy of Sciences,Beijing 100049,China
文献出处：
引用格式：
[1]Shao-Yang Li;Liang-Liang Wang;Dan Wu;Jin You;Yue Wang;Jia-Shun Zhang;Xiao-Jie Yin;Jun-Ming An;Yuan-Da Wu-.High efficiency,small size,and large bandwidth vertical interlayer waveguide coupler)[J].中国物理B（英文版）,2022(02):367-374
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B类：
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AB值：
0.549797
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