Polarization-independent fiber-chip grating couplers optimized by the adaptive genetic algorithm

Wang Xiaofei; Yu Hui; Huang Qikai; Zhang Zhaoyang; Zhou Zhiyan; Fu Zhilei; Xia Penghui; Wang Yuehai; Jiang Xiaoqing; Yang Jianyi

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Polarization-independent fiber-chip grating couplers optimized by the adaptive genetic algorithm

机译：由自适应遗传算法优化的极化无关的光纤光栅耦合器

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One-dimensional polarization-independent grating couplers are demonstrated with the aid of the adaptive genetic algorithm optimization. By adjusting the relative weight between the coupling efficiency and the bandwidth of the polarization-dependent loss (PDL), we control the evolution direction and customize the final performance of the device. Two specific designs are generated by giving more weight to the coupling efficiency and the PDL bandwidth, respectively. Coupling efficiencies of the first design are measured to be -7.6 dB and -7.9 dB at 1550 nm for TE and TM polarizations, respectively, while its 1.0 dB PDL bandwidth is 25.0 nm. In contrast, the second design presents higher coupling efficiencies of -7.6 dB and -7.2 dB at 1550 nm for TE and TM polarizations, respectively. However, its 1.0 dB PDL bandwidth is 22.0 nm. (C) 2021 Optical Society of America

机译：利用自适应遗传算法优化了一维偏振无关光栅耦合器。通过调整耦合效率和偏振相关损耗（PDL）带宽之间的相对权重，我们可以控制演化方向并定制器件的最终性能。通过分别赋予耦合效率和PDL带宽更大的权重，产生了两种特定的设计。第一种设计的耦合效率在1550nm处分别为-7.6dB和-7.9dB，用于TE和TM极化，而其1.0dB PDL带宽为25.0nm。相比之下，第二种设计在1550 nm处分别为TE和TM偏振提供了更高的耦合效率，分别为-7.6 dB和-7.2 dB。然而，它的1.0dB PDL带宽是22.0nm。（2021）美国光学学会

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《Optics Letters》 |2021年第2期|共4页
作者
Wang Xiaofei; Yu Hui; Huang Qikai; Zhang Zhaoyang; Zhou Zhiyan; Fu Zhilei; Xia Penghui; Wang Yuehai; Jiang Xiaoqing; Yang Jianyi;
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Zhejiang Univ Coll Informat Sci &

Elect Engn Inst Integrated Microelect Syst Hangzhou 310027 Peoples R China;

Zhejiang Univ Coll Informat Sci &

Elect Engn Inst Integrated Microelect Syst Hangzhou 310027 Peoples R China;

Zhejiang Univ Coll Informat Sci &

Elect Engn Inst Integrated Microelect Syst Hangzhou 310027 Peoples R China;

Zhejiang Univ Coll Informat Sci &

Elect Engn Inst Integrated Microelect Syst Hangzhou 310027 Peoples R China;

Zhejiang Univ Coll Informat Sci &

Elect Engn Inst Integrated Microelect Syst Hangzhou 310027 Peoples R China;

Zhejiang Univ Coll Informat Sci &

Elect Engn Inst Integrated Microelect Syst Hangzhou 310027 Peoples R China;

Zhejiang Univ Coll Informat Sci &

Elect Engn Inst Integrated Microelect Syst Hangzhou 310027 Peoples R China;

Zhejiang Univ Coll Informat Sci &

Elect Engn Inst Integrated Microelect Syst Hangzhou 310027 Peoples R China;

Zhejiang Univ Coll Informat Sci &

Elect Engn Inst Integrated Microelect Syst Hangzhou 310027 Peoples R China;

Zhejiang Univ Coll Informat Sci &

Elect Engn Inst Integrated Microelect Syst Hangzhou 310027 Peoples R China;

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正文语种 eng
中图分类计量学;光学;
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Polarization-independent fiber-chip grating couplers optimized by the adaptive genetic algorithm

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