dc.contributor.authorSun, Qizhen
dc.contributor.authorAi, Fan
dc.contributor.authorLiu, Deming
dc.contributor.authorCheng, Jianwei
dc.contributor.authorLuo, Hongbo
dc.contributor.authorPeng, Kuan
dc.contributor.authorLuo, Yiyang
dc.contributor.authorYan, Zhijun
dc.contributor.authorShum, Perry Ping
dc.identifier.citationSun, Q., Ai, F., Liu, D., Cheng, J., Luo, H., Peng, K., et al. (2017). M-OTDR sensing system based on 3D encoded microstructures. Scientific Reports, 7, 41137-.en_US
dc.description.abstractIn this work, a quasi-distributed sensing scheme named as microstructured OTDR (M-OTDR) by introducing ultra-weak microstructures along the fiber is proposed. Owing to its relative higher reflectivity compared with the backscattered coefficient in fiber and three dimensional (3D) i.e. wavelength/frequency/time encoded property, the M-OTDR system exhibits the superiorities of high signal to noise ratio (SNR), high spatial resolution of millimeter level and high multiplexing capacity up to several ten thousands theoretically. A proof-of-concept system consisting of 64 sensing units is constructed to demonstrate the feasibility and sensing performance. With the help of the demodulation method based on 3D analysis and spectrum reconstruction of the signal light, quasi-distributed temperature sensing with a spatial resolution of 20 cm as well as a measurement resolution of 0.1 °C is realized.en_US
dc.format.extent8 p.en_US
dc.relation.ispartofseriesScientific Reportsen_US
dc.rights© 2017 The Author(s) (Nature Publishing Group). This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/en_US
dc.subjectFibre optics and optical communicationsen_US
dc.subjectOptical sensorsen_US
dc.titleM-OTDR sensing system based on 3D encoded microstructuresen_US
dc.typeJournal Article
dc.contributor.schoolSchool of Electrical and Electronic Engineeringen_US
dc.description.versionPublished versionen_US

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