A portable all-fiber thermometer based on the fluorescence intensity ratio (FIR) technique in rare earth doped TeO2-WO3-La2O3-Na2O glass

作者：Tu, Yuyuan; Zhao, Shilong^*; He, Dongyang; Wu, Ting; Zhang, Hui; Lei, Ruoshan; Huang, Lihui; Xu, Shiqing^*

来源：Journal of Materials Chemistry C, 2018, 6(26): 7063-7069.

DOI：10.1039/c8tc01940a

• UP-CONVERSION LUMINESCENCE
• OPTICAL-PROPERTIES
• THERMAL SENSITIVITY
• OXYFLUORIDE GLASS
• TELLURITE GLASS
• ER3+
• BEHAVIOR
• SINGLE
• IONS
• TRANSITION

A portable all-fiber thermometer based on the FIR technique in Er3+/Yb3+ co-doped TeO2-WO3-La2O3-Na2O (TWLN) glasses was designed and its temperature sensing performance in the temperature range of 293-569 K was determined in detail. The high glass transition temperature (T-g = 439 degrees C) of TWLN glass contributes to broadening the range of temperature measurement. The spectroscopic analysis of Eu3+ ions and Judd-Ofelt analysis of Er3+ ions reveal that the rare earth ions are situated in a low symmetry environment in TWLN glass, which suggests that a large FIR change and high temperature sensitivity are expected. Intense green upconversion emission in Er3+/Yb3+ co-doped TWLN glass fiber was easily observed under 980 nm excitation at a low pumping power (1.4 mW). The maximum temperature sensitivity of the portable all-fiber thermometer reached 86.7 x 10(-4) K-1 at 553 K. Experimental results showed that the absolute errors were around +/- 1 K within the temperature range from 285 to 563 K.

• 出版日期2018-7-14
• 单位杭州电子科技大学; 中国计量大学