Affiliation:
1. Research Center for Advanced Photon Technology
Abstract
We report on the experimental development of short-tapered chalcogenide-glass rods for mid-infrared supercontinuum generation. Multi-octave spectral broadening of femtosecond laser pulses is demonstrated from 1.6 to 15.6 µm in a 5-cm-long tapered Ge20Se70Te10 rod with a waist diameter of 25 µm. Despite the multimode nature of the optical waveguide used, this work clearly shows the potential of such simple post-processed rods for advancing fiber SC sources with infrared glasses, thereby unlocking new possibilities in terms of coupling efficiency, spectral coverage, and output power.
Funder
Centre National de la Recherche Scientifique
Agence Nationale de la Recherche
Conseil Régional de Bourgogne-Franche-Comté
Subject
Atomic and Molecular Physics, and Optics