Eidam Tino, Wirth Christian, Jauregui Cesar, Stutzki Fabian, Jansen Florian, Otto Hans-Jürgen, Schmidt Oliver, Schreiber Thomas, Limpert Jens, Tünnermann Andreas
Friedrich-Schiller-University Jena, Institute of Applied Physics, Jena, Germany.
Opt Express. 2011 Jul 4;19(14):13218-24. doi: 10.1364/OE.19.013218.
We report on the observation and experimental characterization of a threshold-like onset of mode instabilities, i.e. an apparently random relative power content change of different transverse modes, occurring in originally single-mode high-power fiber amplifiers. Although the physical origin of this effect is not yet fully understood, we discuss possible explanations. Accordingly, several solutions are proposed in this paper to raise the threshold of this effect.
我们报告了在原本为单模的高功率光纤放大器中观察到的模式不稳定性阈值状起始现象的观测结果和实验特性，即不同横向模式的相对功率含量出现明显随机变化。尽管这种效应的物理起源尚未完全理解，但我们讨论了可能的解释。因此，本文提出了几种解决方案以提高这种效应的阈值。
