对宽带碲基掺铒光纤放大器(EDTFA)上能级粒子数反转比进行了理论研究,得到了碲基掺铒光纤放大器上能级粒子数反转比随着光纤激活长度、信号输入功率、泵浦功率和纤芯掺杂浓度的演变关系,分析了上能级粒子数反转比分布与EDTFA信号增益间的关系.研究表明,碲基掺铒光纤内的上能级粒子数反转比分布决定了EDTFA的信号增益.
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