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Abstract
In recent years, multi-petawatt laser installations have achieved unprecedented peak powers, opening new horizons to laser–matter interaction studies. Ultra-broadband and extreme temporal contrast pulse requirements make optical parametric chirped pulse amplification (OPCPA) in the few-picosecond regime the key technology in these systems. To guarantee high fidelity output, however, OPCPA requires excellent synchronization between pump and signal pulses. Here, we propose a new highly versatile architecture for the generation of optically synchronized pump–signal pairs based on the Kerr shutter effect. We obtained ${\gt}{550}\;\unicode{x00B5}{\rm J}$ pump pulses of 12 ps duration at 532 nm optically synchronized with a typical ultrashort CPA source at 800 nm. As a proof-of-principle demonstration, our system was also used for amplification of ${\sim}20\;\unicode{x00B5} {\rm J}$ ultra-broadband pulses based on an OPCPA setup.
© 2021 Optical Society of America
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