Mid-infrared extension of supercontinuum in chalcogenide suspended core fibre through soliton gas pumping
Résumé
We experimentally demonstrate the mid-infrared extension of supercontinuum in a 1.9-µm suspended core chalcogenide fibre whose zero dispersion wavelength is shifted to 1.9 µm, i.e., into the transparency window of standard silica fibres. Based on the well-known long-pulse regime of supercontinuum generation in silica fibre, we are able to convert and shift a low-cost optical quasi-CW source at 1.53 µm into a large number of interacting femtosecond solitons localized up to 2.1 µm. This optical source called a soliton gas allows us to pump a 50-cm long chalcogenide microstructured fibre near its zero dispersion wavelength, thus leading to an efficient extension of a mid-infrared supercontinuum beyond 2.4 µm.
Domaines
Optique [physics.optics]Origine | Fichiers produits par l'(les) auteur(s) |
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