Dynamic temperature compensation interrogation technique for liquid level sensors array based on single-longitudinal-mode DBR fiber laser

Chenglai Jia; Bo Liu; Hao Zhang; Yinping Miao

doi:10.1117/12.975234

17 October 2012 Dynamic temperature compensation interrogation technique for liquid level sensors array based on single-longitudinal-mode DBR fiber laser

Chenglai Jia, Bo Liu, Hao Zhang, Yinping Miao

Author Affiliations +

Proceedings Volume 8421, OFS2012 22nd International Conference on Optical Fiber Sensors; 842159 (2012) https://doi.org/10.1117/12.975234
Event: OFS2012 22nd International Conference on Optical Fiber Sensor, 2012, Beijing, China

Abstract

A polarimetric DBR fiber laser sensor array for simultaneous measurement of liquid level and temperature has been proposed and experimentally demonstrated. Operation principle of the proposed DBR fiber laser sensor has been theoretically analyzed. Based on beat frequency/wavelength hybrid interrogation, discrimination between liquid level and temperature has been achieved. Furthermore, three fiber laser sensors were cascaded to build up a serially multiplexed sensor array, showing a good multiplexing capability for potential network applications.

Citation Download Citation

Chenglai Jia, Bo Liu, Hao Zhang, and Yinping Miao "Dynamic temperature compensation interrogation technique for liquid level sensors array based on single-longitudinal-mode DBR fiber laser", Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 842159 (17 October 2012); https://doi.org/10.1117/12.975234

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