Fabrication and Spectroscopic Properties of Heavily Pr~(3+) Doped Selenide Chalcogenide Glass and Fiber for Mid-infrared Fiber Laser
用于中红外光纤激光器的高Pr~(3+)掺杂硒化物硫系玻璃和光纤制备及其光谱特性
查看参考文献31篇
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文摘
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In order to develop a high gain medium for fiber lasers operating at 3-5 μm waveband,0-0.4%(in weight)Pr~(3+) ions doped Ge_(12)As_(20.8)Ga_4Se_(63.2) selenide chalcogenide glasses were prepared and the 0.2%(in weight)Pr~(3+) ions doped one was successfully drawn into step-index double-cladding fiber with the lowest loss of 2.95 dB/m@6.58 μm by a multistage rod-in-tube method.The electron-probe measure microanalysis(EPMA),X-ray diffraction (XRD),differential scanning calorimeter(DSC),field emission transmission electron microscope(FE-TEM),transmission and mid-infrared fluorescence spectra were carried out to analyze the dispersion of Pr~(3+) ions in glass,the impurity contents,thermal and optical changes caused by the Pr~(3+) ions’introduction.By analyzing the absorption and emission measurements of the serial glasses with the Judd-Ofelt theory,the Judd-Ofelt strength parameters,transition probabilities,exited state lifetime,branching ratios,and emission cross-sections were also calculated.This selenide chalcogenide glass has high Pr~(3+) ions’solubility and emission characteristic,good thermal stability and fiber forming performance,indicating that it has potential to be used as mid-infrared laser working medium. |
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其他语种文摘
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为了研发用于3~5 μm波段光纤激光器的增益介质,制备了重量百分比为0~0.4%不同浓度Pr~(3+)离子掺杂的Ge_(12)As_(20.8)Ga_4Se_(63.2)硒化物硫系玻璃。通过多级棒管法,重量百分比为0.2%的Pr~(3+)离子掺杂玻璃被成功拉制成阶跃型双包层光纤,损耗最低为2.95 dB/m(位于6.58 μm处)。采用电子探针显微分析(EPMA)、X射线衍射(XRD)、差示扫描量热(DSC)、场发射透射电子显微镜(FE-TEM)、透射光谱和中红外荧光光谱分析了玻璃中Pr~(3+)离子的分散性、杂质含量以及Pr~(3+)离子引入引起的热、光学性质变化。通过玻璃的吸收和发射光谱并结合Judd-Ofelt理论,计算了Judd-Ofelt强度参数、辐射跃迁几率、荧光寿命、荧光分支比和受激发射截面。这种硒化硫系玻璃具有较高的Pr~(3+)离子溶解度和中红外发光特性、良好的热稳定性和成纤性能,表明其具有作为中红外激光工作介质的潜力。 |
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来源
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发光学报
,2022,43(6):851-861 【核心库】
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DOI
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10.37188/CJL.20220088
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关键词
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chalcogenide glass
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rare-earth ions
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spectroscopy
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mid-infrared fluorescence
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infrared fiber
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地址
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1.
Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, State Key Laboratory of Transient Optics and Photonics, Xi'an, 710119
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University of Chinese Academy of Sciences, Beijing, 100049
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语种
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英文 |
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文献类型
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研究性论文 |
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ISSN
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1000-7032 |
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学科
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物理学 |
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基金
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国家自然科学基金
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中国科学院创新交叉团队项目
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文献收藏号
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CSCD:7302873
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