Numerical simulation of wavelength-modulated surface plasmon resonance-based fiber optic sensor |
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Authors: | Yu Huang Jiming HeZhaoming Chen Dongyun TangLijuan Liu Shixuan He |
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Institution: | Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 401122, China |
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Abstract: | A systematically theoretical analysis of a surface plasmon resonance (SPR)-based optical fiber sensor is carried out. A three-layer mode (fiber core/gold/sample) is used to simulate the SPR-based optical fiber sensor. Several parameters including the thickness of gold layer, numerical aperture (NA) of fiber, sensing region length and fiber core diameter have been investigated to evaluate the sensitivity and measurement accuracy of sensor. A detailed explanation for the effect of these parameters on the sensor is presented to give a guideline to optimally design the SPR-based optical fiber sensor. |
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Keywords: | Optical fiber sensor Surface plasmon resonance Sensitivity Measurement accuracy |
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