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Opt Lett. 2008 Dec 1;33(23):2833-5.

Toward a thermodynamic description of supercontinuum generation.

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  • 1Institut Carnot de Bourgogne, UMR 5209 CNRS-Universit√© de Bourgogne, 21000 Dijon, France.


We consider the incoherent nonlinear regime of the supercontinuum generation process in optical fibers. We show that, under certain conditions, the phenomenon of spectral broadening inherent to the supercontinuum generation may be described by simple thermodynamic arguments based on the kinetic wave theory. Accordingly, the supercontinuum generation process may be regarded as a thermalization process, which is characterized by an irreversible evolution of the optical field toward a thermodynamic equilibrium state, i.e., the state of maximum nonequilibrium entropy.

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