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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 9 — Apr. 27, 2009
  • pp: 7392–7406

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

Benoît Barviau, Bertrand Kibler, Alexandre Kudlinski, Arnaud Mussot, Guy Millot, and Antonio Picozzi  »View Author Affiliations

Optics Express, Vol. 17, Issue 9, pp. 7392-7406 (2009)

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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.

© 2009 Optical Society of America

OCIS Codes
(030.1640) Coherence and statistical optics : Coherence
(190.4370) Nonlinear optics : Nonlinear optics, fibers
(190.5650) Nonlinear optics : Raman effect

ToC Category:
Nonlinear Optics

Original Manuscript: November 19, 2008
Revised Manuscript: January 12, 2009
Manuscript Accepted: January 20, 2009
Published: April 21, 2009

Benoît Barviau, Bertrand Kibler, Alexandre Kudlinski, Arnaud Mussot, Guy Millot, and Antonio Picozzi, "Experimental signature of optical wave thermalization through supercontinuum generation in photonic crystal fiber," Opt. Express 17, 7392-7406 (2009)

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