光学
谐振器
多模光纤
硫系化合物
材料科学
波导管
硫系玻璃
光电子学
物理
光纤
作者
Zhiyuan Wang,Zhen Yang,Haoxian Wang,Wei Zhang,Rongping Wang,Peipeng Xu
出处
期刊:Applied Optics
[The Optical Society]
日期:2023-03-17
卷期号:62 (9): 2278-2278
摘要
We propose and demonstrate a high quality (Q) factor racetrack resonator based on uniform multimode waveguides in high-index contrast chalcogenide glass film. Our design features two carefully designed multimode waveguide bends based on modified Euler curves, which enable a compact 180° bend and reduce the chip footprint. A multimode straight waveguide directional coupler is utilized to couple the fundamental mode without exciting higher-order modes in the racetrack. The fabricated micro-racetrack resonator shows a record-high intrinsic Q of 1.31×106 for selenide-based devices, with a relatively low waveguide propagation loss of only 0.38 dB/cm. Our proposed design has potential applications in power-efficient nonlinear photonics.
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