title: 5 Hz, > 250 mJ optical parametric chirped-pulse amplifier at 1053 nm.
abstract: A 250 mJ, 5 Hz repetition rate optical parametric chirped-pulse amplifier with near-Fourier-transform-limited, 430 fs pulses and a beam that can be focused to near the diffraction limit is demonstrated. A pump laser with engineered spatial and temporal profiles allows an overall pump-to-signal conversion efficiency of 34% to be achieved.
authors.affiliation: Laboratory for Laser Energetics, University of Rochester, 250 East River Road, Rochester, New York 14623, USA. vbag@lle.rochester.edu
authors.forename: Vincent
authors.initials: V
authors.lastname: Bagnoud
authors.forename: Ildar A
authors.initials: IA
authors.lastname: Begishev
authors.forename: Mark J
authors.initials: MJ
authors.lastname: Guardalben
authors.forename: Jason
authors.initials: J
authors.lastname: Puth
authors.forename: Jonathan D
authors.initials: JD
authors.lastname: Zuegel