A novel plasmonic sensor based on a photonic crystal fiber has been fabricated. Experimental results show that 2 cm is an optimal fiber length of the sensor for refractive index monitoring. It is found that the average wavelength sensitivity and the resolution of the proposed sensor are 4000 nm/RIU and ${2.5} \times {{1}}{{{0}}^{- 5}}\;{\rm{RIU}}$ in the wind range of 1.3333–1.4035, respectively. In addition, this paper presents a set of operation flat roofs that is used in the side-polished fiber technique. Moreover, two effective methods of coating silver film are discussed in detail. The research in this paper has enlightening significance for exploring new optical fiber sensing technology and will open a new design methodology for optical fiber sensors.

中文翻译：

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高灵敏度光纤传感器在大范围折射率检测中的实验研究

已经制造了一种基于光子晶体光纤的新型等离子体传感器。实验结果表明，2 cm是用于折射率监测的传感器的最佳纤维长度。发现所提出的传感器的平均波长灵敏度和分辨率为4000 nm / RIU和$ {2.5} \ times {{1}} {{{0}} ^ {-5}} \; {\ rm { RIU}} $分别在1.3333–1.4035的风向范围内。此外，本文还介绍了一套用于侧面抛光纤维技术的操作平屋顶。此外，详细讨论了涂覆银膜的两种有效方法。本文的研究对探索新型光纤传感技术具有重要的启发意义，并将为光纤传感器的设计开辟新的方法。