In this paper, one of the most modern random lasers known as random distributed feedback fiber laser is investigated when the third-order dispersion (TOD) is taken into account. The laser characteristics are simulated based on the nonlinear Schrödinger equations (NLSEs) where the power evolution of three interacting waves: the pump, the forward and the backward Stokes waves, are investigated as they propagate down the fiber. The results show that due to TOD, the output characteristics of the laser are changed and particularly, the output power becomes asymmetrical. Moreover, the impacts of fiber nonlinear coefficient and input power on the output power and the output spectrum are studied.

中文翻译：

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随机分布反馈光纤激光器：三阶色散的影响

在本文中，当考虑到三阶色散（TOD）时，研究了一种最现代的随机激光器，即随机分布反馈光纤激光器。激光特性基于非线性薛定谔方程 (NLSE) 进行模拟，其中研究了三种相互作用波：泵浦波、正向和反向斯托克斯波在沿光纤传播时的功率演化。结果表明，由于TOD，激光器的输出特性发生了变化，特别是输出功率变得不对称。此外，研究了光纤非线性系数和输入功率对输出功率和输出频谱的影响。