TY  - JOUR
AU  - Eichner, Timo
AU  - Hülsenbusch, Thomas
AU  - Palmer, Guido
AU  - Maier, Andreas
TI  - Evolutionary optimization and long-term stabilization of a white-light seeded two-stage OPCPA seed laser
JO  - Optics express
VL  - 31
IS  - 22
SN  - 1094-4087
CY  - Washington, DC
PB  - Optica
M1  - PUBDB-2023-03817
SP  - 36915 - 36927
PY  - 2023
AB  - Ultrafast laser systems, such as optical parametric chirped pulse amplifiers (OPCPA), are complex tools. Optimizing laser performance for a given application is often plagued by intricate couplings between different output parameters, making simultaneous control of multiple pulse properties difficult. Here, we experimentally demonstrate an autonomous tuning procedure of a white-light seeded two-stage OPCPA using an evolutionary strategy to reliably reach an optimized working point. We use the data collected during the tuning procedure to calibrate a performance model of the laser system, which we then apply to stabilize the intricately coupled laser output energy and spectrum simultaneously. Our approach ensures reliable day-to-day operation at optimized working points without manual tuning. We demonstrate shot-to-shot energy stability of <0.18 
LB  - PUB:(DE-HGF)16
C6  - 38017831
UR  - <Go to ISI:>//WOS:001099728900001
DO  - DOI:10.1364/OE.504694
UR  - https://bib-pubdb1.desy.de/record/586176
ER  -