Microwave Photonic Temperature Sensing Based on Fourier Domain Mode-Locked OEO and Temperature-to-Time Mapping

被引：14
|
作者：
Wang, Lu [1 ,2 ,3 ]
Hao, Tengfei [1 ,2 ,3 ]
Li, Guangyi [1 ,2 ,3 ]
Li, Ming [1 ,2 ,3 ]
Zhu, Ninghua [1 ,2 ,3 ]
Li, Wei [1 ,2 ,3 ]
机构：
[1] Chinese Acad Sci, State Key Lab Integrated Optoelect, Inst Semicond, Beijing 100083, Peoples R China
[2] Univ Chinese Acad Sci, Sch Elect Elect & Commun Engn, Beijing 100049, Peoples R China
[3] Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100190, Peoples R China
来源：
JOURNAL OF LIGHTWAVE TECHNOLOGY | 2022年 / 40卷 / 15期
基金：
中国国家自然科学基金;
关键词：
Microwave filters; Band-pass filters; Optical pulses; Microwave oscillators; Temperature sensors; Optical reflection; Optical fiber sensors; Microwave photonics; optoelectronic oscillator; temperature sensor; OPTOELECTRONIC OSCILLATOR; STRAIN;
D O I：
10.1109/JLT.2022.3174697
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We report a novel temperature sensor based on a Fourier domain mode-locked optoelectronic oscillator (FDML OEO) and temperature-to-time mapping. In the proposed scheme, a narrow bandpass electrical filter is inserted into the FDML OEO cavity. The temperature information is mapped to the time interval of the output pulses due to the temperature-sensitive bidirectional scanning property of the FDML OEO. Compared with other OEO-based temperature sensors, the proposed scheme avoids the needs of wideband electrical spectrum analyzers, since the temperature-sensitive output pulses can be interrogated using a low-speed oscilloscope working under sub-Nyquist sampling condition. In the proof-of-concept experiment, a high sensitivity of 8.166 mu s/degrees C and resolution of 0.03 degrees C is achieved, demonstrating a good temperature sensing performance.
引用
收藏
页码：5322 / 5327
页数：6
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