Cavity dispersion management in continuous-wave supercontinuum generation

被引：4
|
作者：
Martin-Lopez, Sonia [1 ]
Corredera, Pedro [1 ]
Gonzalez-Herraez, Miguel [2 ]
机构：
[1] CSIC, Dept Metrol, Inst Fis Aplicada, E-28006 Madrid, Spain
[2] Univ Alcala de Henares, Dept Elect, Escuela Politecn Super, Madrid 28871, Spain
来源：
OPTICS EXPRESS | 2009年 / 17卷 / 15期
关键词：
RAMAN FIBER LASER; PUMP INCOHERENCE;
D O I：
10.1364/OE.17.012785
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Supercontinuum generation using continuous-wave pumping is usually obtained by pumping a suitable fiber with a high-power fiber laser. Whereas many studies have concentrated in optimizing the dispersion characteristics of the nonlinear medium (the fiber) used to obtain the spectral broadening, very few have actually concentrated in optimizing the pump laser characteristics, and in particular, the dispersion in the cavity. In this paper we experimentally demonstrate that the fiber laser cavity dispersion has a strong influence in Raman fiber laser-pumped continuous-wave supercontinuum generation. We show that anomalous dispersion in the cavity favors spectral broadening over normal dispersion, since large, high-contrast intensity noise appears at the output of the laser. Additionally, we find that there is an optimum value of chromatic dispersion coefficient to obtain the most efficient broadening. (C) 2009 Optical Society of America
引用
收藏
页码：12785 / 12793
页数：9
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