基于多模光纤-光子晶体光纤-多模光纤结构和金-聚二甲基硅氧烷薄膜的新型光纤表面等离子体共振温度传感器。

Novel optical fiber SPR temperature sensor based on MMF-PCF-MMF structure and gold-PDMS film.

作者信息

Wang Yong, Huang Qing, Zhu Wenjie, Yang Minghong, Lewis Elfed

出版信息

Opt Express. 2018 Jan 22;26(2):1910-1917. doi: 10.1364/OE.26.001910.

DOI:10.1364/OE.26.001910

PMID:29401912

Abstract

In this paper, a novel optical fiber temperature sensor based on surface plasmon resonance (SPR) is presented. The sensor consists of multimode fiber-photonic crystal fiber-multimode fiber (MMF-PCF-MMF) structure coated with gold film, whose refractive index (RI) sensitivity was found to range from 1060.78 nm/RIU to 4613.73 nm/RIU in the RI range of 1.3330-1.3904. Through simulation and experimental results, the RI sensitivity of the MMF-PCF-MMF structure is found to be higher than that of multimode fiber-single mode fiber-multimode fiber (MMF-SMF-MMF) structure. The sensing area was coated with polydimethylsiloxane (PDMS) that has a high thermal coefficient, obtaining a high temperature sensitivity of -1.551 nm/°C in the temperature range of 35-100 °C, which means it has a broad application prospect in medical, environmental monitoring and manufacturing industry.

摘要

本文提出了一种基于表面等离子体共振（SPR）的新型光纤温度传感器。该传感器由涂有金膜的多模光纤-光子晶体光纤-多模光纤（MMF-PCF-MMF）结构组成，在1.3330-1.3904的折射率范围内，其折射率（RI）灵敏度为1060.78 nm/RIU至4613.73 nm/RIU。通过仿真和实验结果发现，MMF-PCF-MMF结构的RI灵敏度高于多模光纤-单模光纤-多模光纤（MMF-SMF-MMF）结构。传感区域涂有热系数高的聚二甲基硅氧烷（PDMS），在35-100°C的温度范围内获得了-1.551 nm/°C的高温灵敏度，这意味着它在医疗、环境监测和制造业中具有广阔的应用前景。