掺镱光纤激光器作为窄带放大自发辐射的脉冲源。

Ytterbium-doped fiber laser as pulsed source of narrowband amplified spontaneous emission.

作者信息

Muniz-Cánovas Pablo, Barmenkov Yuri O, Kir'yanov Alexander V, Cruz José L, Andrés Miguel V

机构信息

Centro de Investigaciones en Óptica, Loma del Bosque 115, León, Guanajuato, Mexico.

Department of Applied Physics and Electromagnetism-ICMUV, University of Valencia, Burjassot, Spain.

出版信息

Sci Rep. 2019 Sep 10;9(1):13073. doi: 10.1038/s41598-019-49695-9.

DOI:10.1038/s41598-019-49695-9

PMID:31506581

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6737143/

Abstract

We report random noise pulsed regime of an ytterbium-doped fiber laser arranged in common Fabry-Perot configuration. We show that the laser output obeys the photon statistics inherent to narrowband amplified spontaneous emission and that the noise pulsing is properly addressed in terms of probability density and autocorrelation functions. Our novel approach reveals, in particular, that the regime's coherence time dramatically shortens, from few ns to tens ps, with increasing laser power.

摘要

我们报道了一种采用普通法布里-珀罗结构的掺镱光纤激光器的随机噪声脉冲状态。我们表明，激光输出服从窄带放大自发辐射固有的光子统计规律，并且噪声脉冲可以通过概率密度和自相关函数得到恰当描述。我们的新方法特别揭示出，随着激光功率的增加，该状态的相干时间会从几纳秒急剧缩短至几十皮秒。