Color Variation of the Up-Conversion Luminescence in Er3+-Yb3+ Co-Doped Lead Germanate Glasses and Microsphere Integrated Devices
Color Variation of the Up-Conversion Luminescence in Er3+-Yb3+ Co-Doped Lead Germanate Glasses and Microsphere Integrated Devices
复制标题
Er3-Yb3共掺杂德国铅玻璃和微球集成器件中上转换发光的颜色变化
DOI：
10.1109/jlt.2020.2989409
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发表时间：
2020-08
影响因子：
4.7
通讯作者：
Wang Pengfei
中科院分区：
文献类型：
--
作者：
Zhang Meng;Tian Ke;Wang Shunbin;Yuan Libo;Farrell Gerald;Lewis Elfed;Wang Pengfei
制备了共掺杂不同 Er3+/Yb3+ 浓度的锗酸铅玻璃样品，并使用 980 nm 激光泵观察了这些玻璃中上转换发射的颜色变化。介绍了一种基于Er3+-Yb3+共掺锗酸铅玻璃微球和特殊光纤结构的实用光集成器件，由单模光纤(SMF)、多模光纤(MMF)和悬浮三芯空心光纤(STCHF)组成。当泵浦光从悬浮在 STCHF 内部的核心耦合到微球中时，固定在 STCHF 气孔中的微球被激发，并观察到上转换发射。此外，当泵浦功率增加时，由于红色与绿色发射的发光强度比的变化，微球的发光输出颜色可以容易地从黄色调节到绿色。这种光纤内微球谐振器集成器件由于其紧凑的结构和优异的性能，在多色显示器、光学传感器和激光器件中具有广泛应用的潜力。
Lead germanate glass samples co-doped with different Er3+/Yb3+ concentrations were prepared and the color variation of the up-conversion emissions in these glasses was observed using a 980 nm laser pump. A practical optical integrated device based on Er3+-Yb3+ co-doped lead germanate glass microsphere and a special fiber structure, consisting of single mode fiber (SMF), multimode fiber (MMF) and a suspended tri-core hollow fiber (STCHF) is described. As the pump light is coupled into the microsphere from the cores suspended inside the STCHF, the microsphere fixed in the air hole of the STCHF is excited and the up-conversion emissions are observed. Furthermore, when the pump power is increased, the luminescence output color of the microsphere can be readily tuned from yellow to green due to the change of the luminescence intensity ratio of the red to green emissions. This in-fiber microsphere resonator integrated device has the potential to be widely applied in multicolor displays, optical sensors and laser devices owing to its compact structure and excellent performance.
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