The coupling efficiency of the amplifier and the factors affecting the output power improvement are investigated.
研究光纤放大器的耦合效率以及影响输出功率的因素。
2
The results of experiment indicate: the laser amplifier with side-directly-pumped coupling system has uniform pump light distribution and gain distribution.
实验结果表明：采用侧面直接抽运耦合系统的激光放大器有均匀的抽运光分布场和增益分布场。
3
The gain of the amplifier is also given in terms of the coupling factor and the normalized negative conductance, the relationship between the gain and the effective noise figure is thus found.