光学学报, 2021, 41 (3): 0306003, 网络出版: 2021-02-28
基于氧化石墨烯涂层的侧抛光纤马赫-曾德尔干涉仪温湿度传感器 下载: 1191次
Temperature and Humidity Sensor Based on a Graphene Oxide-Coated Side-Polished Fiber Mach-Zehnder Interferometer
图 & 表
图 2. 微锥侧抛光纤MZI结构仿真结果。(a) 不同折射率下的干涉光谱;(b) 折射率传感线性拟合曲线图;(c) 波长为1564 nm (dip A) 的光场传输图;(d) 波长为1558 nm (peak B)的光场传输图
Fig. 2. Simulation results of the micro taper side-polished fiber MZI structure. (a) Interference spectra under different refractive indexes; (b) linear fit curve diagram of refractive index sensing; (c) light field transmission diagram at wavelength of 1564 nm (dip A); (d) light field transmission diagram at wavelength of 1558 nm (peak B)
图 4. 光纤侧边抛磨系统与侧抛区域显微图。 (a) 侧边抛磨加工平台; (b) 光纤侧抛区域显微镜视图
Fig. 4. Fiber side-polished system and the micrograph of side-polished area. (a) Fiber side-polished system; (b) micrograph of fiber side-polished area
图 5. 折射率和温度测量的实验装置
Fig. 5. Experimental device for refractive index and temperature measurement
图 6. 微锥MZI结构不同折射率下的传感曲线图。 (a)~(c) 侧抛深度为0,29.2,41.7 μm的微锥MZI结构的折射率响应光谱; (d)~(f) 对应的传感曲线线性拟合
Fig. 6. Sensing curves of micro taper MZI structures under different refractive indexes. (a)--(c) Refractive index response spectra of micro taper MZI structures with side-polished depths of 0, 29.2, and 41.7 μm; (d)--(f) linear fit of sensing curve
图 7. 微锥MZI结构不同温度下的传感曲线图。 (a)~(c) 侧抛深度为0,29.2,41.7 μm的微锥MZI结构的温度响应光谱; (d)~(f) 对应的传感曲线线性拟合
Fig. 7. Sensing curves of micro taper MZI structures under different temperatures. (a)--(c) Temperature response spectra of micro taper MZI structures with side-polished depths of 0, 29.2, and 41.7 μm; (d)--(f) linear fit of sensing curve
图 8. 氧化石墨烯的湿度传感机理和显微镜图。(a) 湿度传感机理; (b) 涂覆GO薄膜的光纤截面; (c) 2 mg/mL GO溶液沉积后的薄膜厚度
Fig. 8. Humidity sensing mechanism and microscope image of GO. (a) Humidity sensing mechanism; (b) cross section of fiber coated with GO film; (c) nanolayer thickness after deposition with GO concentration of 2 mg/mL
张平, 刘彬, 刘正达, 刘娟, 王梦宇, 伏燕军, 万生鹏, 何兴道, 吴强. 基于氧化石墨烯涂层的侧抛光纤马赫-曾德尔干涉仪温湿度传感器[J]. 光学学报, 2021, 41(3): 0306003. Ping Zhang, Bin Liu, Zhengda Liu, Juan Liu, Mengyu Wang, Yanjun Fu, Shengpeng Wan, Xingdao He, Qiang Wu. Temperature and Humidity Sensor Based on a Graphene Oxide-Coated Side-Polished Fiber Mach-Zehnder Interferometer[J]. Acta Optica Sinica, 2021, 41(3): 0306003.