Increasing the brightness of a femtosecond laser system via two-stage nonlinear conversion

L. L. Losev, V. S. Pazyuk

P. N. Lebedev Physical Institute, Russian Academy of Sciences, Moscow, Russia

Abstract: The brightness of the femtosecond ytterbium laser system has been increased from 1.2 $\cdot$ 10$^{17}$ to 15.8· 10$^{17}$ W/(cm$^2$ $\cdot$ sr) using nonlinear self-phase modulation and second harmonic generation processes.

Keywords: radiation brightness, femtosecond lasers, pulse compression.

Received: 28.08.2024
Revised: 09.10.2024
Accepted: 09.10.2024

DOI: 10.61011/PJTF.2025.03.59822.20096

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