title: 1.9 octave supercontinuum generation in a As₂S₃ step-index fiber driven by mid-IR OPCPA.
abstract: Using a 3.1-μm optical parametric chirped-pulse amplifier (OPCPA), we generate a supercontinuum in a step-index chalcogenide fiber that spans from 1.6 to 5.9 μm at the -20  dB points. The rugged step-index geometry allows for long-term operation, while the spectral bandwidth is limited by the transmission of the As2S3 fiber.
authors.forename: Darren D
authors.initials: DD
authors.lastname: Hudson
authors.forename: Matthias
authors.initials: M
authors.lastname: Baudisch
authors.forename: Daniel
authors.initials: D
authors.lastname: Werdehausen
authors.forename: Benjamin J
authors.initials: BJ
authors.lastname: Eggleton
authors.forename: Jens
authors.initials: J
authors.lastname: Biegert