Subwavelength structure engineered grating coupler for the 2-μm waveband

Wenchang He, Yuhan Sun,Lipeng Xia,Peiji Zhou,Yi Zou

Frontiers in Optics + Laser Science 2022 (FIO, LS)（2022）

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摘要

We experimentally demonstrate a subwavelength structure engineered focusing grating coupler on an SOI platform for the 2-μm waveband. The measurement results show a high coupling efficiency of -4.0 dB at 2.037 μm and a 1-dB bandwidth of 70 nm.

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关键词

grating coupler

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