title: Development of a novel large bandwidth front-end system for high peak power OPCPA systems.
abstract: We present the development of a laser system capable of generating bandwidths sufficient to support a sub 30 fs pulse at 910 nm. These pulses have been amplified to 500 mJ of energy at 2 Hz in two stages. The contrast measurements show that the initial seed is clean and suggests that the close in contrast is limited by the evaluation stretcher and compressor. Such a system is suitable for seeding high energy high power OPCPA systems based on KD*P.
authors.affiliation: Central Laser Facility, STFC, Rutherford Appleton Laboratory, Chilton, Didcot, Oxfordshire, OX11 0QX, UK.
authors.forename: A
authors.initials: A
authors.lastname: Lyachev
authors.forename: I O
authors.initials: IO
authors.lastname: Musgrave
authors.forename: Y
authors.initials: Y
authors.lastname: Tang
authors.forename: C
authors.initials: C
authors.lastname: Hernandez-Gomez
authors.forename: I N
authors.initials: IN
authors.lastname: Ross
authors.forename: M
authors.initials: M
authors.lastname: Galimberti
authors.forename: O V
authors.initials: OV
authors.lastname: Chekhlov
authors.forename: J
authors.initials: J
authors.lastname: Collier