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Your search keyword '"Wenchang He"' showing total 2 results
Start Over Author "Wenchang He" Publisher optica publishing group
2 results on '"Wenchang He"'

1. Subwavelength structure engineered grating coupler for the 2-μm waveband

Author

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

Abstract

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.

Published
2022

2. Subwavelength structure engineered passband filter for the 2-µm wave band

Author

Wenchang He, Yuhan Sun, Peiji Zhou, Lipeng Xia, Ting Li, Qiyuan Yi, Li Shen, Zhenzhou Cheng, and Yi Zou

Subjects
Atomic and Molecular Physics, and Optics
Abstract

In this work, we experimentally demonstrate a passband filter for the 2-µm wave band on the silicon-on-insulator platform. The device consists of a strip waveguide and an apodized subwavelength-structured waveguide. Fabricated on a 340-nm-thick silicon membrane, the proposed passband filter shows a 3-dB bandwidth of 16–33 nm, a high sidelobe suppression ratio (SLSR) of 24 dB, and a low insertion loss (IL) of 0.4 dB.

Published
2023

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