Optical sensors based on cascaded micro-ring resonators with thermo-optical tuning

Zhiping Yang; Yanlu Wang; Chang Su; Jian-Jun He; Mingyu Li

doi:10.1117/12.2573588

10 October 2020 Optical sensors based on cascaded micro-ring resonators with thermo-optical tuning

Zhiping Yang, Yanlu Wang, Chang Su, Jian-Jun He, Mingyu Li

Proceedings Volume 11554, Advanced Sensor Systems and Applications X; 1155415 (2020) https://doi.org/10.1117/12.2573588
Event: SPIE/COS Photonics Asia, 2020, Online Only

Conference Poster

Abstract

Although the cascaded double ring sensor can improve the sensitivity due to the difference between the radii of the reference ring and the sensing ring to produce Vernier effect, a large bandwidth spectrometer or a large tunable range laser is required for the wavelength interrogation. In this paper, the cascaded double ring senor based on silicon on insulator (SOI) with thermo-optical tuning for refractive index sensing is investigated. The peak wavelength shift of the transmission envelope can be converted into the electric power change of the micro-heater. The sensitivity reaches 33.703×10³ mW/RIU by fitting Gaussian function to the spectral envelope for the wavelength interrogation with 7.9 nm wavelength measurement range.

Conference Presentation

Citation Download Citation

Zhiping Yang, Yanlu Wang, Chang Su, Jian-Jun He, and Mingyu Li "Optical sensors based on cascaded micro-ring resonators with thermo-optical tuning", Proc. SPIE 11554, Advanced Sensor Systems and Applications X, 1155415 (10 October 2020); https://doi.org/10.1117/12.2573588

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