Experimental signature of optical wave thermalization through supercontinuum generation in photonic crystal fiber

被引：52

作者：

Barviau, Benoit ^{[1
]}

Kibler, Bertrand ^{[1
]}

Kudlinski, Alexandre ^{[2
]}

Mussot, Arnaud ^{[2
]}

Millot, Guy ^{[1
]}

Picozzi, Antonio ^{[1
]}

机构：

[1] Univ Bourgogne, CNRS, Inst Carnot Bourgogne, UMR 5029, F-21078 Dijon, France

[2] Univ Sci & Technol Lille, Lab Phys Lasers Atomes & Mol, F-59655 Villeneuve Dascq, France

来源：

OPTICS EXPRESS | 2009年 / 17卷 / 09期

关键词：

THERMODYNAMIC DESCRIPTION; SOLITON; DISPERSION; INSTABILITY; TURBULENCE;

D O I：

10.1364/OE.17.007392

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report an experimental, numerical and theoretical study of the incoherent regime of supercontinuum generation in a two zero-dispersion wavelengths fiber. By using a simple experimental setup, we show that the phenomenon of spectral broadening inherent to supercontinuum generation can be described as a thermalization process, which is characterized by an irreversible evolution of the optical field towards a thermal equilibrium state. In particular, the thermodynamic equilibrium spectrum predicted by the kinetic wave theory is characterized by a double peak structure, which has been found in quantitative agreement with the numerical simulations without adjustable parameters. We also confirm that stimulated Raman scattering leads to the generation of an incoherent structure in the normal dispersion regime which is reminiscent of a spectral incoherent soliton. (c) 2009 Optical Society of America

引用

页码：7392 / 7406

页数：15

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