TY  - JOUR
AU  - Seidel, Marcus
AU  - Pressacco, Federico
AU  - Akcaalan, Oender
AU  - Binhammer, Thomas
AU  - Darvill, John
AU  - Ekanayake, Nagitha
AU  - Frede, Maik
AU  - Große-Wortmann, Uwe
AU  - Heber, Michael
AU  - Heyl, Christoph
AU  - Kutnyakhov, Dmytro
AU  - Li, Chen
AU  - Mohr, Christian
AU  - Müller, Jost
AU  - Puncken, Oliver
AU  - Redlin, Harald
AU  - Schirmel, Nora
AU  - Schulz, Sebastian
AU  - Swiderski, Angad
AU  - Tavakol, Hamed
AU  - Tuennermann, Henrik
AU  - Vidoli, Caterina
AU  - Wenthaus, Lukas
AU  - Wind, Nils
AU  - Winkelmann, Lutz
AU  - Manschwetus, Bastian
AU  - Hartl, Ingmar
TI  - Ultrafast MHz‐Rate Burst‐Mode Pump–Probe Laser for the FLASH FEL Facility Based on Nonlinear Compression of ps‐Level Pulses from an Yb‐Amplifier Chain
JO  - Laser & photonics reviews
VL  - 16
IS  - 3
SN  - 1863-8880
CY  - Weinheim
PB  - Wiley-VCH
M1  - PUBDB-2021-01488
M1  - arXiv:2105.05882
SP  - 2100268
PY  - 2022
N1  - This work is licensed under a Creative Commons Attribution 4.0 International License.
AB  - The Free-Electron Laser (FEL) FLASH offers the world-wide still unique capability to study ultrafast processes with high-flux, high-rate XUV and soft X-ray pulses. The vast majority of experiments at FLASH are of pump-probe type and thus rely as well on optical ultrafast lasers.  Here, a novel FEL facility laser is reported which combines the high average power output of Yb:YAG amplifiers with spectral broadening in a Herriott-type multi-pass cell and subsequent pulse compression to sub-100 fs durations. Compared to the previously employed laser utilizing optical parametric amplification, the new system comes with significantly improved noise figures, compactness, simplicity and power efficiency. It provides FLASH users 10 Hz repetition rate laser bursts with 800 𝜇s long trains of up to 800 pulses being optically synchronized to the FEL bursts with femtosecond precision. In the experimental chamber, pulses with up to 50 𝜇J energy, 60 fs FWHM duration and 1 MHz rate at 1.03 𝜇m wavelength are available and can be adjusted by computer-control. First cross-correlation measurements with the FEL pulses at the plane-grating monochromator photon beamline are demonstrated, proofing the suitability of the new laser for user experiments at FLASH.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000743761500001
DO  - DOI:10.1002/lpor.202100268
UR  - https://bib-pubdb1.desy.de/record/456492
ER  -