All-optical graphene-oxide humidity sensor based on a side-polished symmetrical twin-core fiber Michelson interferometer
All-optical graphene-oxide humidity sensor based on a side-polished symmetrical twin-core fiber Michelson interferometer
复制标题
基于侧面抛光对称双芯光纤迈克尔逊干涉仪的全光学氧化石墨烯湿度传感器
DOI：
10.1016/j.snb.2019.01.011
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发表时间：
2019-04-01
影响因子：
8.4
通讯作者：
Yuan, Libo
中科院分区：
文献类型：
--
作者：
Chu, Rang;Guan, Chunying;Yuan, Libo
提出了一种基于侧面抛光双芯光纤迈克尔逊干涉仪（MI）的高灵敏度氧化石墨烯（GO）湿度传感器。通过将一段TCF拼接到标准单模光纤（SMF）上并使拼接点逐渐变细来制造MI。暴露的抛光芯具有更强的倏逝场，增强了光与外部环境的相互作用。GO-SPTCFMI可以工作在波长和强度调制传感器。实验上获得了在相对湿度40-75%范围内接近2.72nm/RH%，在相对湿度60-62.1%范围内接近3.76dB/RH%的超高湿敏度。高性能的GO-SPTCFMI是一个有前途的候选人的潜在应用，如气体传感和生化检测。
A high-sensitive graphene-oxide (GO) humidity sensor based on a side-polished twin-core fiber (SPTCF) Michelson interferometer (MI) has been demonstrated. The MI was fabricated by splicing a section of TCF to a standard single mode fiber (SMF) and tapering the splicing point. The exposed polished core has a stronger evanescent field and enhances the interaction between light and external environment. The GO-SPTCFMI can operate in the wavelength-and intensity-modulated sensor. The super-high humidity sensitivities of similar to 2.72 nm/RH% in the RH range of 40-75% and similar to 3.76 dB/RH% in the RH range of 60-62.1% are obtained experimentally. The high-performance GO-SPTCFMI is a promising candidate for potential applications, such as gas sensing and biochemical detection.