9 January 2017 Medical respiratory monitoring sensors based on microbend fiber loss
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In this work, a medical respiratory monitoring sensor based on the microbend effect of optical fiber on light transmission is proposed. The microbend effect of multimode optical fiber is analyzed theoretically using optical theory. A respiratory signal modulator with a “sandwich” microbender structure is designed enabling the noninvasive real-time monitoring. In vitro testing showed that the proposed sensor has excellent following characteristics and can automatically discern respiratory condition, the signal-to-noise ratio can be better than 28dB.
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Yong Zhao, Yong Zhao, Liuting Zhouxiao, Liuting Zhouxiao, Jian Yang, Jian Yang, Xianjing Li, Xianjing Li, } "Medical respiratory monitoring sensors based on microbend fiber loss", Proc. SPIE 10025, Advanced Sensor Systems and Applications VII, 1002517 (9 January 2017); doi: 10.1117/12.2244480; https://doi.org/10.1117/12.2244480

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