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首页> 外文期刊>Physica, B. Condensed Matter >Enhanced 1.53-μm and lowered upconversion luminescence in Er ~3-doped Ga_2O_3GeO_2Bi _2O_3Na_2O glass by codoping rare earths
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Enhanced 1.53-μm and lowered upconversion luminescence in Er ~3-doped Ga_2O_3GeO_2Bi _2O_3Na_2O glass by codoping rare earths

机译：共掺杂稀土在Er〜3掺杂的Ga_2O_3GeO_2Bi _2O_3Na_2O玻璃中增强1.53μm并降低上转换发光

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摘要

Spectroscopic properties and energy transfer (ET) in Ga_2O _3GeO_2Bi_2O_3Na_2O (GGBN, glass doped with Er~3 and rare earths (RE~3; RE ~3=Ce~3, Tb~3) have been investigated. Intense 1.53-μm emission with the peak emission cross-section achieved to 7.58×10~(-21) cm~2 from Er~3-doped GGBN glass has been obtained upon excitation at 980 nm. Effects of RE~3 (RE ~3=Ce~3, Tb~3) codoping on the optical properties of Er~3-doped GGBN glass have been investigated and the possible ET mechanisms involved have also been discussed. Significant enhancement of the 1.53 μm emission intensity and decrease of upconversion (UC) fluorescence with increasing Ce~3 concentration have been observed. The incorporation of Tb~3 into Er~3-doped GGBN glass could significantly decrease the UC emission intensity, but meanwhile decrease the 1.53 μm emission intensity due to the ET from Er~3: ~4I_(13/2) to Tb~(3:7)F_2. The results indicate that the incorporation of Ce~3 into Er ~3-doped GGBN glass can effectively improve 1.53-μm and lower UC luminescence, which makes GGBN glass more attractive for use in C-band optical fiber amplifiers.
机译：研究了Ga_2O _3GeO_2Bi_2O_3Na_2O（GGBN，掺有Er〜3的玻璃和稀土（RE〜3; RE〜3 = Ce〜3，Tb〜3））的光谱性质和能量转移（ET），在1.53μm的强发射下掺杂Er〜3的GGBN玻璃在980 nm激发下获得了最大发射截面为7.58×10〜（-21）cm〜2。RE〜3（RE〜3 = Ce〜3，研究了Tb〜3）共掺杂对掺Er〜3的GGBN玻璃的光学性能的影响，并探讨了可能的ET机制，随着Ce的增加，1.53μm发射强度显着增强，上转换（UC）荧光降低。已经观察到〜3的浓度。将Tb〜3掺入掺Er〜3的GGBN玻璃中可以显着降低UC的发射强度，但同时由于Er〜3产生的ET而降低了1.53μm的发射强度：〜4I_（13 / 2）到Tb〜（3：7）F_2。结果表明，将Ce〜3掺入掺Er〜3的GGBN玻璃中可以有效改善1.53μm和更低的UC发光，这使得GGBN玻璃在C波段光纤放大器中更具吸引力。

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