Laser Properties and Temperature Sensing of Er3+-doped Fluortellurite Glass Microsphere

被引：0
|
作者：
Shao Y. [1 ,2 ]
Kang S. [1 ,2 ]
Li S. [1 ,2 ]
Dai S. [1 ,2 ]
Lin C. [1 ,2 ]
机构：
[1] Laboratory of Infrared Materials and Devices, Research Institute of Advanced Technologies, Ningbo University, Ningbo
[2] Key Laboratory of Photoelectric Detection Materials and Devices of Zhejiang Province, Ningbo
来源：
Faguang Xuebao/Chinese Journal of Luminescence | 2023年 / 44卷 / 05期
基金：
中国国家自然科学基金;
关键词：
Er[!sup]3+[!/sup]-doped; fluortellurite; glass microspheres; temperature sensing;
D O I：
10.37188/CJL.20220401
中图分类号：
学科分类号：
摘要：
Er3+-doped fluortellurite glass microspheres composed of 60TeO2-10GeO2-20BaF2-9Y2O3-1Er2O3 were prepared by high temperature floating-powder melting method，and their quality factor（Q），near-infrared laser per⁃ formance and temperature sensing were studied in detail. The results show that the Q factor of the microsphere cavity can be as high as ~106. Under excitation of a 980 nm LD，1 607 nm laser output with the threshold of 54 μW and op⁃ tical conversion efficiency of 0. 050% was realized in the microsphere with the diameter of 44. 58 μm. By investigat⁃ ing the influence of microsphere diameter on the laser performance，it can be obtained that with the decrease of the microsphere diameter，the laser threshold gradually decreases and the optical conversion efficiency gradually increas⁃ es. This is mainly attributed to the higher energy density and stronger light-matter interaction of the smaller micro⁃ sphere cavity. In addition，the temperature sensing property of the microsphere cavity was investigated，yielding a temperature sensitivity of 14 pm/℃ . These results indicate that the prepared Er3+-doped fluortellurite glass micro⁃ sphere cavity may find potential applications in low threshold lasers and high-sensitivity temperature sensors. © 2023 Chines Academy of Sciences. All rights reserved.
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页码：845 / 851
页数：6
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