摘要
基于Er/Tm共掺石英光纤的能级跃迁及能量转移特性,建立了Er3+/Tm3+共掺石英光纤放大器的理论模型。采用离散算法,计算了自发辐射输出功率谱和放大器的信号增益。结果表明,依据模型计算的正向自发辐射输出功率谱与实验结果基本一致;输出信号的3dB增益带宽随不同的光纤长度和泵浦功率而变化;当输入的泵浦功率为0.2W,信号功率为1μW时,Er3+/Tm3+共掺石英光纤放大器的3dB带宽可达到110nm。
Based on the behavior of the energy level transition and transfer in Er^3＋/Tm^3＋ co-doped silica fiber, the Er^3＋/Tm^3＋ co-doped silica fiber amplifier was modeled by using the rate and propagation equations. The Amplified Spontaneous Emission （ASE） power spectrum as well as signal gain was calculated by using the discrete algorithm of these equations. The results show that the calculated forward ASE power spectra are almost consistent with the experimental results and the 3dB gain bandwidth of the output signal changes with both the fiber length and pump power. When the pump and signal power are 0.2W and 1μW, respectively, the Er^＋3/Tm^3＋ co-doped silica fiber amplifier could provide a 3dB gain bandwidth of 110nm.
出处
《光电工程》
EI
CAS
CSCD
北大核心
2006年第10期61-66,共6页
Opto-Electronic Engineering
基金
中国人民解放军总装备部创新基金资助项目
