High-Q Subwavelength Grating Racetrack Micro-ring Resonators Based on Bound State in Continuum

Xiaoxuan Wu,Chongbao Fang,Junjia Wang,Na Dong,Weifeng Jiang,Zhaofu Chen,Ningfeng Bai,Xiaohan Sun

2022 Asia Communications and Photonics Conference (ACP)（2022）

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摘要

High-Q resonator is a pivotal component in various optical devices. In this work, we demonstrate high-Q subwavelength grating (SWG) racetrack micro-ring resonators based on bound state in continuum (BIC) waveguide with quality factors up to 7000, which is extremely useful for BIC-based photonic integrated circuits.

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关键词

subwavelength structures,racetrack micro-ring resonator,bound state in continuum,waveguide devices

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