title: Octave-spanning supercontinuum generation in in situ tapered As₂S₃ fiber pumped by a thulium-doped fiber laser.
abstract: We report a supercontinuum spanning well over an octave of measurable bandwidth from about 1 to 3.7 μm in a 2.1 mm long As₂S₃ fiber taper using the in situ tapering method. A sub-100-fs mode-locked thulium-doped fiber laser system with ~300 pJ of pulse energy was used as the pump source. Third-harmonic generation was observed and currently limits the pump pulse energy and achievable spectral bandwidth.
authors.affiliation: Edward L. Ginzton Laboratory, Stanford University, Stanford, California 94305, USA. cwrudy@stanford.edu
authors.forename: Charles W
authors.initials: CW
authors.lastname: Rudy
authors.forename: Alireza
authors.initials: A
authors.lastname: Marandi
authors.forename: Konstantin L
authors.initials: KL
authors.lastname: Vodopyanov
authors.forename: Robert L
authors.initials: RL
authors.lastname: Byer