A fiber cladding surface plasmon resonance(SPR)bending sensor is realized by the cladding of the fiber structure.By employing coating film,the sensing zone is protected and the toughness of the sensor increases.Three ...A fiber cladding surface plasmon resonance(SPR)bending sensor is realized by the cladding of the fiber structure.By employing coating film,the sensing zone is protected and the toughness of the sensor increases.Three different sensing probes are tested,the experiment results indicate that the two parameters(wavelength sensitivity and light intensity sensitivity)sensing performances of the eccentric butt joint structures are superior to that of hetero-core structure,and the SPR bending sensor based on hetero-core structure is stable and uneasy to damage.By employing hetero-core fiber and silver film,a fiber cladding SPR bending sensor with better stabilization and sensing performance is realized.The proposed fabricating method of sensing probe with coating film provides a new approach for fiber SPR-distributed bending sensor.展开更多
基金Project supported by the National Natural Science Foundation of China(Grant No.61705025)the Natural Science Foundation of Heilongjiang Province,China(Grant No.F2018027)+4 种基金the Fund from Chongqing Municipal Key Laboratory of Institutions of Higher Education(Grant No.20173)the Program of Chongqing Development and Reform Commission(Grant No.20171007)the Natural Science Foundation of Chongqing,China(Grant Nos.cstc2019jcyjmsxmX0431 and cstc2018jcyjAX0817)the Science and Technology Project Affiliated to the Education Department of Chongqing Municipality,China(Grant Nos.KJQN201801217,KJQN201901226,and KJ1710247)the Fundamental Research Funds for Chongqing Three Gorges University of China(Grant No.19ZDPY08)。
文摘A fiber cladding surface plasmon resonance(SPR)bending sensor is realized by the cladding of the fiber structure.By employing coating film,the sensing zone is protected and the toughness of the sensor increases.Three different sensing probes are tested,the experiment results indicate that the two parameters(wavelength sensitivity and light intensity sensitivity)sensing performances of the eccentric butt joint structures are superior to that of hetero-core structure,and the SPR bending sensor based on hetero-core structure is stable and uneasy to damage.By employing hetero-core fiber and silver film,a fiber cladding SPR bending sensor with better stabilization and sensing performance is realized.The proposed fabricating method of sensing probe with coating film provides a new approach for fiber SPR-distributed bending sensor.
