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Title: An optical parametric chirped-pulse amplifier for seeding high repetition rate free-electron lasers

High repetition rate free-electron lasers (FEL), producing highly intense extreme ultraviolet and x-ray pulses, require new high power tunable femtosecond lasers for FEL seeding and FEL pump-probe experiments. A tunable, 112 W (burst mode) optical parametric chirped-pulse amplifier (OPCPA) is demonstrated with center frequencies ranging from 720–900 nm, pulse energies up to 1.12 mJ and a pulse duration of 30 fs at a repetition rate of 100 kHz. Since the power scalability of this OPCPA is limited by the OPCPA-pump amplifier, we also demonstrate a 6.7–13.7 kW (burst mode) thin-disk OPCPA-pump amplifier, increasing the possible OPCPA output power to many hundreds of watts. Furthermore, third and fourth harmonic generation experiments are performed and the results are used to simulate a seeded FEL with high-gain harmonic generation.
Authors:
 [1] ;  [2] ;  [3] ;  [4] ;  [5] ;  [6] ;  [5] ;  [3] ;  [7]
  1. Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany); Carl von Ossietzky Univeritat, Oldenburg (Germany). Institut fur Physik; Hochschule Emden/Leer-University of Applied Sciences, Emden (Germany). Institut ful Laser und Optik.
  2. Queen's Univ., Belfast, Northern Ireland (United Kingdom); Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany)
  3. Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany)
  4. Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany); Class 5 Photonics GmbH, Hamburg (Germany)
  5. Class 5 Photonics GmbH, Notkester 85, Hamburg (Germany); Helmholtz-Institut Jena, Jena (Germany)
  6. Carl von Ossietzky Univeritat, Oldenburg (Germany). Institut fur Physik; Hochschule Emden/Leer-University of Applied Sciences, Emden (Germany). Institut ful Laser und Optik.
  7. SLAC National Accelerator Lab., Menlo Park, CA (United States)
Publication Date:
OSTI Identifier:
1211619
Grant/Contract Number:
AC02-76SF00515
Type:
Accepted Manuscript
Journal Name:
New Journal of Physics
Additional Journal Information:
Journal Volume: 17; Journal Issue: 5; Journal ID: ISSN 1367-2630
Publisher:
IOP Publishing
Research Org:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Org:
USDOE Office of Science (SC)
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS optical parametric chirped-pulse amplification (OPCPA); free-electron lasers (FEL); high-gain harmonic generation (HGHG)