ErF3-doped TeO2–Ga2O3–BaF2–AlF3–Y2O3 (TGBAY) glasses with high fluorescence efficiency and a high thermal damage threshold were developed for potential mid-infrared fiber laser applications. A model 2.7-μm fiber laser based on this material was analyzed using rate and propagation equations. Under 808 and 980 nm laser pumping, fluorescence emissions with central wavelength at 1.55 and 2.73 μm were detected. Based on the Judd–Ofelt (J–O) theory, the intensity parameters (Ωλ, λ = 2, 4, and 6) and radiative transition property were calculated and characterized through absorption and emission spectra. The results indicated that tellurite–gallium oxyfluoride glass had a high glass transition temperature (Tg, ∼391 °C), large emission cross sections at 1.55 μm (6.32 × 10−21 cm2) and 2.73 μm (9.68 × 10−21 cm2) as well as a longer fluorescence lifetime (6.84 ms at 1.55 μm and 262 μs at 2.73 μm) relative to the conventional Er3+-doped tellurite glass. The temperature dependence of the emission spectra indicated that TGBAY-2Er glass was more favorable to achieve infrared emission at low temperatures. Numerical simulation revealed the feasibility of achieving a ∼2.7 μm fiber laser operation based on the developed Er3+-doped tellurite–gallium oxyfluoride glass fiber.
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21 April 2021
Research Article|
April 20 2021
Spectroscopic properties of ErF3 doped tellurite–gallium oxyfluoride glass for ∼3 μm laser materials
Special Collection:
Emerging Materials and Devices for Efficient Light Generation
Rui Wan;
Rui Wan
1
State Key Laboratory of Transient Optics and Photonics, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences (CAS)
, Xi'an, Shaanxi 710119, China
2
Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences
, Beijing 100049, China
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Pengfei Wang
;
Pengfei Wang
a)
1
State Key Laboratory of Transient Optics and Photonics, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences (CAS)
, Xi'an, Shaanxi 710119, China
2
Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences
, Beijing 100049, China
a)Author to whom correspondence should be addressed: pfwang@opt.ac.cn
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Shengwu Li;
Shengwu Li
1
State Key Laboratory of Transient Optics and Photonics, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences (CAS)
, Xi'an, Shaanxi 710119, China
2
Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences
, Beijing 100049, China
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Yuan Ma;
Yuan Ma
1
State Key Laboratory of Transient Optics and Photonics, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences (CAS)
, Xi'an, Shaanxi 710119, China
2
Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences
, Beijing 100049, China
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Guangwei Zhang
Guangwei Zhang
3
Zhejiang Fountain Aptitude Technology Inc.
, Hangzhou 310051, China
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a)Author to whom correspondence should be addressed: pfwang@opt.ac.cn
Note: This paper is part of the Special Topic on Emerging Materials and Devices for Efficient Light Generation.
J. Appl. Phys. 129, 153105 (2021)
Article history
Received:
February 09 2021
Accepted:
April 04 2021
Citation
Rui Wan, Pengfei Wang, Shengwu Li, Yuan Ma, Guangwei Zhang; Spectroscopic properties of ErF3 doped tellurite–gallium oxyfluoride glass for ∼3 μm laser materials. J. Appl. Phys. 21 April 2021; 129 (15): 153105. https://doi.org/10.1063/5.0047010
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