【摘要】 本文提出了一种利用光纤谐振环来改进现有掺杂光纤放大器系统的新型结构。理论分析及数值计算结果表明，在小信号情况下，这种放大器比常规的系统提高了近１０ｄＢ的增益，并且降低了泵浦阈值。更多还原

【Abstract】 This paper presents a novel configuration of Er-doped fiber amplifier which makes using of fiber loop with resonance.Theoretical analysis and numerical results show,this a amplifier upgrades near 10 dB to gain more than general configuration’s,under small signal,and the pump threshold is reduced,too.更多还原