2 June 2014 An acoustic vibration sensor based on tapered triple cladding fiber
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Proceedings Volume 9157, 23rd International Conference on Optical Fibre Sensors; 9157A8 (2014) https://doi.org/10.1117/12.2054843
Event: OFS2014 23rd International Conference on Optical Fiber Sensors, 2014, Santander, Spain
Abstract
An acoustic vibration sensor is investigated and demonstrated by using a tapered triple cladding fiber (TCF). It is fabricated by tapering a length of 2 cm TCF which is spliced between two single mode fibers (SMF). The TCF consists of core, inner cladding, middle cladding and outer cladding. After the tapering process, this structure becomes a tapered coaxial fiber coupler which presents a periodic filtering transmission spectrum. The surrounding vibration perturbation can be directly demodulated by intensity detection of the transmission power at a particular wavelength. The experimental result shows that the maximum frequency response of 700 kHz is achieved.
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Hui Xu, Hui Xu, Fufei Pang, Fufei Pang, Shiqi Zhao, Shiqi Zhao, Zhenyi Chen, Zhenyi Chen, Tingyun Wang, Tingyun Wang, } "An acoustic vibration sensor based on tapered triple cladding fiber", Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 9157A8 (2 June 2014); doi: 10.1117/12.2054843; https://doi.org/10.1117/12.2054843
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