| GUO Junqi,WANG Changle,DI Ke,LI Zhehao,LI Renpu,LIU Yu.A biological fluid fiber Sagnac sensor based on SPF-PCF-SPF structure[J].Optoelectronics Letters,2023,(4):210-214 |
| A biological fluid fiber Sagnac sensor based on SPF-PCF-SPF structure |
| Author Name | Affiliation | | GUO Junqi | Chongqing Key Laboratory of Autonomous Navigation and Microsystem, Chongqing University of Post and Telecommunications, Chongqing 400065, China
Chongqing Engineering Research Center of Intelligent Sensing Technology and Microsystem, Chongqing University of Posts and Telecommunications, Chongqing 400065, China | | WANG Changle | Chongqing Key Laboratory of Autonomous Navigation and Microsystem, Chongqing University of Post and Telecommunications, Chongqing 400065, China
Chongqing Engineering Research Center of Intelligent Sensing Technology and Microsystem, Chongqing University of Posts and Telecommunications, Chongqing 400065, China | | DI Ke | Chongqing Key Laboratory of Autonomous Navigation and Microsystem, Chongqing University of Post and Telecommunications, Chongqing 400065, China
Chongqing Engineering Research Center of Intelligent Sensing Technology and Microsystem, Chongqing University of Posts and Telecommunications, Chongqing 400065, China | | LI Zhehao | Chongqing Key Laboratory of Autonomous Navigation and Microsystem, Chongqing University of Post and Telecommunications, Chongqing 400065, China
Chongqing Engineering Research Center of Intelligent Sensing Technology and Microsystem, Chongqing University of Posts and Telecommunications, Chongqing 400065, China | | LI Renpu | Chongqing Key Laboratory of Autonomous Navigation and Microsystem, Chongqing University of Post and Telecommunications, Chongqing 400065, China
Chongqing Engineering Research Center of Intelligent Sensing Technology and Microsystem, Chongqing University of Posts and Telecommunications, Chongqing 400065, China | | LIU Yu | Chongqing Key Laboratory of Autonomous Navigation and Microsystem, Chongqing University of Post and Telecommunications, Chongqing 400065, China
Chongqing Engineering Research Center of Intelligent Sensing Technology and Microsystem, Chongqing University of Posts and Telecommunications, Chongqing 400065, China |
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| Abstract: |
| A biological solution concentration sensor based on a side-polished fiber (SPF) assisted fluid system is presented. The birefringence properties of the asymmetrically filled fluid in this structure and the relationship between the concentration of the biological solution and the refractive index are theoretically analyzed. It was found that the interference peaks had red-shifted with increasing concentration. A sensing sensitivity of 1.387 1×104 nm·mL/mol at 14.68×10-4 mol/mL was achieved within the experimental range after different concentrations of arginine solutions were injected into the sensing system. This sensing system can also be applied to measure the concentration of other biological solutions, providing the feasibility of real-time detection of biological solutions. |
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