Macro-bending biconical tapered plastic optical fiber humidity sensor

Zi Guo; Fenghong Chu; Jinyu Fan; Ze Zhang; Gaofang Li; Xiaojun Song

doi:10.1117/12.2505331

12 December 2018 Macro-bending biconical tapered plastic optical fiber humidity sensor

Zi Guo, Fenghong Chu, Jinyu Fan, Ze Zhang, Gaofang Li, Xiaojun Song

Proceedings Volume 10849, Fiber Optic Sensing and Optical Communication; 108490V (2018) https://doi.org/10.1117/12.2505331
Event: International Symposium on Optoelectronic Technology and Application 2018, 2018, Beijing, China

Abstract

Plastic optical fiber (POF) probe with macro-bending (U-shaped) biconical tapered structure is proposed and optimized for the relative humidity (RH) sensing in this paper. And the probe was coated with a fluorescent moisture-sensitive film containing rhodamine 6G (R6G). Its sensing performance was optimized by changing the probe's curvature radius and biconical tapered transition length. The experimental result shows that its sensitivity and linearity are greatly increased. Also, this probe has good repeatability, photostability, and long-term stability.

Citation Download Citation

Zi Guo, Fenghong Chu, Jinyu Fan, Ze Zhang, Gaofang Li, and Xiaojun Song "Macro-bending biconical tapered plastic optical fiber humidity sensor", Proc. SPIE 10849, Fiber Optic Sensing and Optical Communication, 108490V (12 December 2018); https://doi.org/10.1117/12.2505331

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