23 April 2017 Ultrasonic imaging of seismic physical models using fiber Bragg grating Fabry-Perot probe
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Proceedings Volume 10323, 25th International Conference on Optical Fiber Sensors; 103235S (2017) https://doi.org/10.1117/12.2262283
Event: 25th International Conference on Optical Fiber Sensors, 2017, Jeju, Korea, Republic of
Abstract
A fiber-optic sensor has been proposed and demonstrated for the ultrasonic wave (UW) imaging of seismic physical models. The sensor probe comprises a fiber Bragg grating Fabry-Perot (FBG-FP) mounted inside the tip of an aluminum cone focusing the UW into the fiber. The FBG-FP probe possesses an excellent UW sensitivity because of the narrowband notches on the top of the reflection spectrum caused by the Fabry-Perot (FP) interference. Because of the symmetrical structure of the sensor, it provides a directional UW detection with a high signal-to-noise ratio. As expected, the two-dimensional (2D) images of two physical models are reconstructed.
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Ruixiang Zhou, Ruixiang Zhou, Xunli Yin, Xunli Yin, Xueguang Qiao, Xueguang Qiao, } "Ultrasonic imaging of seismic physical models using fiber Bragg grating Fabry-Perot probe", Proc. SPIE 10323, 25th International Conference on Optical Fiber Sensors, 103235S (23 April 2017); doi: 10.1117/12.2262283; https://doi.org/10.1117/12.2262283
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