TY  - JOUR
AU  - Hülsenbusch, Thomas
AU  - Winkelmann, Lutz
AU  - Eichner, Timo
AU  - Lang, Tino
AU  - Palmer, Guido
AU  - Maier, Andreas
TI  - Reducing wavelength jitter in white-light seeded femtosecond optical parametric chirped-pulse amplifiers
JO  - Optics express
VL  - 32
IS  - 13
SN  - 1094-4087
CY  - Washington, DC
PB  - Optica
M1  - PUBDB-2024-01251
SP  - 23416
PY  - 2024
AB  - White light generation (WLG) in bulk material can be used as a versatile broadband seed source for optical parametric chirped pulse amplification (OPCPA) stages. In this case, it is beneficial to optimize the performance of the WLG seeder in combination with the subsequent OPCPA stage. Here, we characterize how small variations in the drive pulse energy affect the white light seeder performance, in particular the wavelength stability of the amplified OPCPA spectrum. To isolate the influence of drive pulse energy on the OPCPA central wavelength, we introduce a phase-sensitive amplitude measurement and carefully optimize the drive pulse focus position (at the bulk) to minimize the sensitivity to the jitter of the drive pulse energy. With additional active stabilization of the delay between pump and seed pulses in the OPCPA, we achieve a central wavelength jitter of 2 × 10<sup>−4</sup>. With this performance, our source is an ideal front-end for applications in laser-plasma acceleration or free-electron laser seeding.
LB  - PUB:(DE-HGF)16
C6  - 39538805
UR  - <Go to ISI:>//WOS:001253384100004
DO  - DOI:10.1364/OE.527895
UR  - https://bib-pubdb1.desy.de/record/604886
ER  -