Tonglei Cheng, Zhiyuan Yin, Wei Liu, Dianchang Song, Xin Yan, Fang Wang, Xuenan Zhang. Rare Earth Ion-Doped Tellurite Upconversion Luminescent Glass and Optical Fiber for Fluorescence Sensing Applications[J]. Laser & Optoelectronics Progress, 2022, 59(15): 1516017
- Laser & Optoelectronics Progress
- Vol. 59, Issue 15, 1516017 (2022)
Fig. 1. UC luminescence mechanism of the Er3+/Yb3+
Fig. 2. Preparation process of the rare earth ion-doped tellurite glass
Fig. 3. Rare earth ion-doped tellurite glasses fabricated by melt-annealing method
Fig. 4. Process of manufacturing tellurite fiber by combining suction casting method and rotational casting method
Fig. 5. DTA curve of Er3+/Yb3+ co-doped TWNZN glass[13]
Fig. 6. UC and NIR luminescence spectra of visible light region. (a) TZBE glass; (b) TZBEY glass[20]
Fig. 7. Absorption spectrum of co-doped TPO glass in the range of 350‒2000 nm[21]
Fig. 8. UC luminescence spectrum of TZLB glass excited at 980 nm; (a) Different Er3+ mole fractions; (b) different Yb3+ mole fractions
Fig. 9. Change curve of emission spectrum of TZLB glass with temperature
Fig. 10. Basic mechanism of rare earth ion glass and optical fiber optical temperature measurement[34]
Fig. 11. Manufacturing method of temperature-sensitive optical fiber head[35]
Fig. 12. Experimental setup for measuring brain and body temperature[35]
Fig. 13. Schematic diagram of the integrated microsphere sensing structure[37]
Fig. 14. Experiment setup for monitoring ammonia content in water[37]
Fig. 15. Schematic diagram of the all-fiber temperature sensing system[13]
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Table 1. Properties of tellurite glasses doped with different host materials and rare earth ions
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Table 2. Sensing parameters and SA of different rare earth ion-doped tellurite glasses and optical fibers
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