Real time noise and wavelength correlations in octave-spanning supercontinuum generation

We use dispersive Fourier transformation to measure shot-to-shot spectral instabilities in femtosecond supercontinuum generation. We study both the onset phase of supercontinuum generation with distinct dispersive wave generation, as well as a highly-unstable supercontinuum regime spanning an octave...

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Bibliographic Details
Published in:Optics express 2013-07, Vol.21 (15), p.18452-18460
Main Authors: Godin, T, Wetzel, B, Sylvestre, T, Larger, L, Kudlinski, A, Mussot, A, Ben Salem, A, Zghal, M, Genty, G, Dias, F, Dudley, J M
Format: Article
Language:English
Subjects:
Algorithms
Computer Simulation
Computer Systems
Engineering Sciences
Light
Lighting - methods
Models, Theoretical
Optics
Photonic
Physics
Scattering, Radiation
Signal-To-Noise Ratio
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Summary:We use dispersive Fourier transformation to measure shot-to-shot spectral instabilities in femtosecond supercontinuum generation. We study both the onset phase of supercontinuum generation with distinct dispersive wave generation, as well as a highly-unstable supercontinuum regime spanning an octave in bandwidth. Wavelength correlation maps allow interactions between separated spectral components to be identified, even when such interactions are not apparent in shot-to-shot or average measurements. Experimental results are interpreted using numerical simulations. Our results show the clear advantages of dispersive Fourier transformation for studying spectral noise during supercontinuum generation.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.21.018452