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Proceedings Paper

Numerical simulations of high power near-infrared supercontinuum generation from a nonlinear fiber amplifier
Author(s): Rui Song; Jing Hou; Yan-Bin Wang; Ai-Jun Jin; Liang Guo; Qi-Sheng Lu
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Paper Abstract

Photonic crystal fiber has been widely used in visible and near-infrared supercontinuum generation due to its flexible dispersion control and high nonlinearity. However, the maximum average output power of supercontinuum from a photonic crystal fiber has not exceed one hundred watt owing to the small core diameter of the photonic crystal fiber and the low coupling efficiency between the pump and the photonic crystal fiber. Recently, supercontinuum generation directly from a nonlinear fiber amplifier attracts lots of attention as a result of its simple structure and low splicing loss and many excellent results have been achieved either in low and high average power, which is proved to be a promising method to realize kilowatt level high power near-infrared supercontinuum. However, the numerical study on high power near-infrared supercontinuum generation from a nonlinear fiber amplifier has been rarely reported, so there is great necessity to carry out some theoretical study on it. In this paper the complex Ginzburg-Landau equation is used to describe the formation and propagation of high power near-infrared supercontinuum generation in a nonlinear fiber amplifier. The chromatic dispersion of the ytterbium-doped fiber is measured by a Mach-Zehnder interferometer. The roles of the small signal gain, input pulse width and initial chirp of the input pulse played on the continuum formation are analyzed in detail. The results are in good agreement with the experiments which can provide some theoretical guidance on future optimization of the flatness and width of the supercontinuum generation from a nonlinear fiber amplifier.

Paper Details

Date Published: 17 September 2013
PDF: 7 pages
Proc. SPIE 8904, International Symposium on Photoelectronic Detection and Imaging 2013: High Power Lasers and Applications, 89040V (17 September 2013); doi: 10.1117/12.2033757
Show Author Affiliations
Rui Song, National Univ. of Defense Technology (China)
Jing Hou, National Univ. of Defense Technology (China)
Yan-Bin Wang, Unit 63892 of People's Liberation Army (China)
Ai-Jun Jin, National Univ. of Defense Technology (China)
Liang Guo, National Univ. of Defense Technology (China)
Qi-Sheng Lu, National Univ. of Defense Technology (China)


Published in SPIE Proceedings Vol. 8904:
International Symposium on Photoelectronic Detection and Imaging 2013: High Power Lasers and Applications
Andreas Tünnermann; Zejin Liu; Pu Wang; Chun Tang, Editor(s)

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