Liu Shen, Yang Kaiming, Wang Yiping, Qu Junle, Liao Changrui, He Jun, Li Zhengyong, Yin Guolu, Sun Bing, Zhou Jiangtao, Wang Guanjun, Tang Jian, Zhao Jing
Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China.
Sci Rep. 2015 Jan 5;5:7624. doi: 10.1038/srep07624.
We demonstrated a unique rectangular air bubble by means of splicing two sections of standard single mode fibers together and tapering the splicing joint. Such an air bubble can be used to develop a promising high-sensitivity strain sensor based on Fabry-Perot interference. The sensitivity of the strain sensor with a cavity length of about 61 μm and a wall thickness of about 1 μm was measured to be up to 43.0 pm/με and is the highest strain sensitivity among the in-fiber FPI-based strain sensors with air cavities reported so far. Moreover, our strain sensor has a very low temperature sensitivity of about 2.0 pm/°C. Thus, the temperature-induced strain measurement error is less than 0.046 με/°C.
我们通过将两段标准单模光纤拼接在一起并使拼接接头逐渐变细的方式，展示了一种独特的矩形气泡。这种气泡可用于开发一种基于法布里 - 珀罗干涉的、颇具前景的高灵敏度应变传感器。对于一个腔长约为61 μm且壁厚约为1 μm的应变传感器，其灵敏度经测量高达43.0 pm/με，是目前所报道的基于光纤法布里 - 珀罗干涉的带空气腔应变传感器中最高的应变灵敏度。此外，我们的应变传感器具有约2.0 pm/°C的极低温度灵敏度。因此，温度引起的应变测量误差小于0.046 με/°C。
Zotero 插件
