在石英单模光纤芯部掺入Er~(3+)的同时掺入Yb~(3+),可以增加光纤吸收谱的宽度,为泵浦提供了从810nm到1100nm的极宽的动态范围,其中最高的吸收峰在980nm附近,吸收达10~5dB/km.用980nm波段钛宝石可调谐激光泵浦Er~(3+)-Yb~(3+)双掺杂光纤,由于能量转移和多光子过程,可产生红外向可见和紫外辐射的转换.弄清980nm波段钛宝石可调谐激光泵浦Er~(3+)-Yb~(3+)双掺杂光纤的发光机理,对光纤上转换器件、激光器和放大器的研究具有重要价值.文献[2]曾报道1480nm LD泵浦的掺Er~(3-)光纤产生的逐步激发态吸收,本文首次报道 The incorporation of Yb 3+ into the quartz single-mode optical fiber core can increase the width of the absorption spectrum of the optical fiber and provide the pump with an extremely wide dynamic range from 810nm to 1100nm. The highest absorption peak near 980nm and the absorption up to 10 ~ 5dB / km.With the 980nm band tunable laser dipping Er ~ (3 +) - Yb ~ (3+) double doped fiber, due to the energy transfer and more Photon process can produce infrared to visible and ultraviolet radiation conversion.Firstly, we clarify the emission mechanism of Er ~ (3 +) - Yb ~ (3+) double doping fiber with tunable laser in the 980nm band, The research of devices, lasers and amplifiers is of great value.It has been reported in literature [2] that the 1480nm LD-pumped Er-doped (3-)