Ren Xingen. The Optimum Fiber Length in 800nm LD Pumped Erbium-Doped Fiber Amplifier[J]. 1992,(2):46-51. DOI: 10.13756/j.gtxyj.1992.02.008.
800nm LD泵浦掺铒光纤放大器的最佳光纤长度
摘要
本文用量子放大器的基本理论
分析了掺铒光纤放大器的激发态吸收(ESA)现象
并得出当存在强烈的ESA时
用800nm LD泵浦掺铒光纤放大器的最佳光纤长度表达式。当用典型值代入计算
其结果与实验确定的值基本相符。最后
提出了实现大增益LD泵浦掺铒光纤放大器的有效方法。
Abstract
Based on the fundamental theory of quantum amplifier
the phenomena of excited state absorption ( ESA ) in Erbium-Doped Fiber Amplifier ( EDFA ) is studied in this paper. The expression of the optimum Er3 + -doped fiber length pumped with 800nm LD is obtained where strong ESA exists. The calculated result using typical parameters of Er3 + -doped fiber is found to be in excellent agreement with the result of the experiment. Finally.a method of realising high-gain LD pumped EDFA is proposed.