A temperature sensor using cascaded microring resonators

2nd International Symposium on Application of Materials Science and Energy Materials

材料科学;能源学

Chen, Xuyu^1 ; Huang, Kun^2 ; Zeng, Zhongliang^1 ; Zeng, Mengshu^1 ; Shen, Changsheng^3 ; Bai, Ningfeng^3

Foshan Power Supply Bureau, Guangdong Power Grid Co. Ltd, Foshan, Guangdong, China^1

Nari Technology Development Co. Ltd., Nanjing, Jiangsu, China^2

Southeast University, Nanjing, Jiangsu, China^3

关键词: Beat frequency;    Bending radius;    Frequency beat;    Microring resonator;    Microwave regime;    Output spectrum;    Thermal-optical effect;    Wavelength spacing;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/490/7/072030/pdf
DOI  :  10.1088/1757-899X/490/7/072030

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

A temperature sensor using cascaded microring resonator based on frequency beat system is presented and simulated in this paper. By changing bending radius of the inner ring, the relations between it and resonator wavelength spacing have been theoretically simulated. The simulation results show that the resonator frequencies of small microring transform to two frequencies and interval of these frequencies is very small which show this structure can be used as a sensor detector in beat frequency sensing system. Considering the thermal-optical effect of silicon, by changing the temperature, the output spectrum response is analysed in optical and microwave regime. The sensitivity is 7.2MHz/K.