Silicon waveguide grating coupler based on a segmented grating structure

Hong Jianxun; Qiu Feng; Spring Andrew M.; Yokoyama Shiyoshi

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Silicon waveguide grating coupler based on a segmented grating structure

机译：基于分段光栅结构的硅波导光栅耦合器

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We present the simulation, fabrication, and experimental results of a high-efficiency and wide-bandwidth segmented waveguide grating coupler on a silicon-on-insulator platform for near vertical optical coupling between the waveguide and optical fiber. The coupler comprises segmented gratings, which can increase vertical coupling to the optical fiber and reduce backward reflection. The proposed grating coupler has a 3 dB bandwidth of 71.4 nm and a coupling efficiency of 51.7% at a wavelength of 1550 nm. Compared with the standard uniform waveguide grating coupler, the coupling efficiency was improved by 25.64%. (C) 2018 Optical Society of America

机译：我们在硅与光纤之间的垂直光学耦合附近，我们在绝缘体平台上提出了一种高效和宽带宽分段波导光栅耦合器的模拟，制造和实验结果。耦合器包括分段的光栅，可以将垂直耦合增加到光纤并减少向后反射。所提出的光栅耦合器具有3dB带宽为71.4nm，波长为1550nm的耦合效率为51.7％。与标准均匀波导光栅耦合器相比，耦合效率提高了25.64％。（c）2018年光学学会

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《Applied optics》 |2018年第12期|共5页
作者
Hong Jianxun; Qiu Feng; Spring Andrew M.; Yokoyama Shiyoshi;
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Kyushu Univ Inst Mat Chem &

Engn 6-1 Kasuga Koen Kasuga Fukuoka 8168580 Japan;

Kyushu Univ Inst Mat Chem &

Engn 6-1 Kasuga Koen Kasuga Fukuoka 8168580 Japan;

Kyushu Univ Inst Mat Chem &

Engn 6-1 Kasuga Koen Kasuga Fukuoka 8168580 Japan;

Wuhan Univ Technol Sch Informat Engn Wuhan 430070 Hubei Peoples R China;

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Silicon waveguide grating coupler based on a segmented grating structure

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