year 28, Issue 1 (1st Iranian Conference on optical fiber sensors (ICOFS 2021) 2021)                   ICOP & ICPET _ INPC _ ICOFS 2021, 28(1): 28-30 | Back to browse issues page

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Sensitivity investigation of optical fiber sensors based on Fabry–Pérot interferometry using MoS2 and GO membrane for detection of acoustic waves
Ali Ojaghloo1 , Parviz Parvin * 1, Hamed Moradi1 , Fatemeh Shahi1
1- Department of Physics and Energy Engineering, Amirkabir University of Technology, Tehran, Iran
Abstract:   (702 Views)
In this paper, an optical fiber sensor (OFS) based on extrinsic Fabry–Pérot (F-P) interferometry (EFPI) is reported for acoustic waves detection. The sensor diaphragm is made of disulfide molybdenum (MoS2) and graphene oxide (GO) nanosheets. These diaphragms are placed in the end face of single-mode fiber (SMF) optics. Due to the lower Young’s modulus of the MoS2 rather than GO, the fabricated sensor benefits high sensitivity to detect acoustic waves. The results show that the sensitivity of the MoS2-based sensor, ~18.50 rad/Pa, is more than the GO-based sensor (~15.52 rad/Pa).
Keywords: Optical fiber acoustic sensor, Fabry–Pérot interferometry, MoS2, Graphene oxide
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Type of Study: Research | Subject: Special
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