摘要
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。
The theoretical studies of the upper state population inversion ratio for erbiumdoped tellurite-based fiber amplifier(EDTFA) are presented, and its distribution curves with the activated fiber length, each channel signal input power, bi-directional pumping power and erbium-doped concentration, respectively, are also obtained. Investigations of the relations between the population inversion ratio and the signal gain of EDTFA are given. It is shown that the signal gain of EDTFA is determined by the upper state population inversion ratio.
出处
《量子电子学报》
CAS
CSCD
北大核心
2005年第6期941-945,共5页
Chinese Journal of Quantum Electronics
基金
浙江省自然科学基金(No:M603019)
浙江省教育厅(No:20030491)资助课题