An optic fiber sensor for multiple gases based on fiber loop ring-down spectroscopy and microring resonator arrays
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- 作者：Xin Zhang 张鑫 ; Jia-wen Jian 简家文 ; Yan-gong Zheng 郑雁公 ; Han Jin 金涵…
- 刊名：Optoelectronics Letters
- 出版年：2016
- 出版时间：July 2016
- 年：2016
- 卷：12
- 期：4
- 页码：312-315
- 全文大小：385 KB
- 刊物类别：Physics and Astronomy
- 刊物主题：Physics
Applied Optics, Optoelectronics and Optical Devices
Chinese Library of Science - 出版者：Tianjin University of Technology, co-published with Springer-Verlag GmbH
- ISSN：1993-5013
- 卷排序：12
文摘
A high-sensitivity sensor for multiple gases based on microring array filter and fiber loop ring-down spectroscopy system is proposed and demonstrated. The parameters of the resonators are designed so that the filtered signal from a broadband light source can be tuned with an absorption spectral line of gas. Therefore, through adding microring resonators horizontally and vertically, the number of target gases and filter range are increased. In this research, in the broad spectral range of about 0.9 μm, only the absorption spectral lines of target gases are filtered. The simulation results show that three target gases, CH4, CO2 and HF, can be simultaneously detected by the sensing system. Owing to the fiber loop ring-down spectroscopy, the whole system is optimized in mini-size and sensitivity, and we can choose different sensing methods to enhance the measurement accuracy for high and low concentration conditions.This work has been supported by the National Natural Science Foundation of China (Nos.61471210 and 61501271), and the Happiness Foundation of Wang Kuancheng.