Direct white light luminescence from Ho3+/Pr3+ co-doped fluoride fiber with blue diode pumping
Direct white light luminescence from Ho3+/Pr3+ co-doped fluoride fiber with blue diode pumping
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DOI：
10.1016/j.rio.2024.100623
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发表时间：
2024-02
影响因子：
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通讯作者：
Yuan Chen;Yulun Wu;Peng Wang;Shihang Xu;Wensong Li
中科院分区：
文献类型：
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作者：
Yuan Chen;Yulun Wu;Peng Wang;Shihang Xu;Wensong Li
在Ho3+/Pr3+共掺杂ZrF4-BaF2-LaF3-AlF3-NaF （ZBLAN）双包层光纤中，研究了蓝色二极管激光诱导的白光发光。442 nm的泵浦激光可以同时激发Ho3+和Pr3+离子，产生协同发光。发射光谱包括蓝色、绿色、橙色、红色和深红色光谱区多个可见波段，对应于Ho3+和Pr3+离子的4f-4f电子跃迁。发射波段的相对强度依赖于泵浦功率，CIE 1931色度图说明了颜色可调性对泵浦功率的依赖。在442 nm激光激发下，CIE坐标在白光范围内，CCT值在6900 ~ 8700 K之间。结果表明，直接蓝色二极管泵浦的双包层Ho3+/Pr3+共掺ZBLAN光纤具有应用于高功率白光光纤激光器的潜力。
White light luminescence induced by a blue diode laser was investigated in a double-clad Ho3+/Pr3+co-doped ZrF4-BaF2-LaF3-AlF3-NaF (ZBLAN) fiber. The pump laser at 442 nm can simultaneously excite Ho3+and Pr3+ions, resulting in synergistic luminescence. The emission spectra include multiple visible bands in the blue, green, orange, red, and deep-red spectral regions, which correspond to the 4f-4f electronic transitions of Ho3+and Pr3+ions. The relative intensity of emission bands is dependent on the pump power, and the CIE 1931 chromaticity diagram illustrates the dependence of color tunability on the pump power. Under laser excitation at 442 nm, the CIE coordinates are within the white light range, and the CCT values are between 6900 and 8700 K. The results indicate that double-clad Ho3+/Pr3+co-doped ZBLAN fibers that are directly blue diode-pumped have the potential to be used in high-power white light fiber lasers.