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Fundamental Noise Limitations to Supercontinuum Generation in Microstructure Fiber

par Corwin, Kristan L.;Newbury, Nathan R.;Dudley, John M.;Coen, Stéphane ;Diddams, Scott;Weber, Klaus H.; [et al.]
Référence Physical review letters, 90, 11, page (1-4), 113904
Publication Publié, 2003

Article révisé par les pairs

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Résumé :

Broadband noise on supercontinuum spectra generated in microstructure fiber is shown to lead to amplitude fluctuations as large as 50% for certain input laser pulse parameters. We study this noise using both experimental measurements and numerical simulations with a generalized stochastic nonlinear Schrödinger equation, finding good quantitative agreement over a range of input-pulse energies and chirp values. This noise is shown to arise from nonlinear amplification of two quantum noise inputs: the input-pulse shot noise and the spontaneous Raman scattering down the fiber.