Lesvigne C, Couderc V, Tonello A, Leproux P, Barthélémy A, Lacroix S, Druon F, Blandin P, Hanna M, Georges P
XLIM Institut de Recherche-UMR CNRS Université de Limoges, No. 6172, Faculté des Sciences et Techniques, 123 Avenue A. Thomas, F-87060 Limoges Cedex, France.
Opt Lett. 2007 Aug 1;32(15):2173-5. doi: 10.1364/ol.32.002173.
We present an experimental and numerical study of supercontinuum generation extended in the visible part of the spectrum by using a selective optical coupling of the pump wave in the largely anomalous dispersion regime. The broadband frequency generation is induced by an initial four-wave mixing process that converts the pump wave at 1064 nm into 831 nm anti-Stokes and 1478 nm Stokes wavelengths. Phase matching is ensured on such a large frequency shift thanks to a microstructured multimodal fiber with a specific design. Continuum generation is therefore enhanced around the two generated sidebands.
