Pr^(3+)/Yb^(3+)共掺光纤放大器中的能量转移过程

The Energy Transfer in Pr^(3+)/Yb^(3+) Co-Doped Fiber Amplifier

测量了 ZBL AN玻璃中 Pr3+ ,Pr3+ +Yb3+的吸收光谱和 Pr3+的荧光发射波长 .分析了 Pr3+ / Yb3+共掺光纤放大器中的能量转移过程 ,运用电多极子理论和多声子辅助能量转移理论计算了 Pr3+ 和 Yb3+ 之间的能量转移几率 .对离子掺杂浓度 ,泵浦波长对 Pr3+ 和 Yb3+ 之间能量转移的影响进行了讨论 ,得到了最佳掺杂浓度和泵浦波长 .此时 Pr3+ / Yb3+ 共掺的光纤放大器具有最大的荧光强度和最高的增益 .

The absorption spectrum of Pr 3+ and Pr 3+ +Yb 3+ , the fluoresce wavelength of Pr 3+ in ZBLAN glass have been measured. The energy transfer process in the Pr 3+ /Yb 3+ co\|doped fiber amplifier has been analyzed, and the probability of energy transfer between Pr 3+ and Yb 3+ has also been calculated using by electric multi\|pole interaction theory. By discussing the energy transfer rate related to the rare\|earth ion concentration and the pump wavelength, the best concentration and pump wavelength are obtained for the optimised fluores cence at 1.3 μm and the most efficent gain of fiber amplifier.