Sub-20 ps high energy pulses from 1 kHz neodymium-based CPA

K. Michailovas, A. Zaukevičius, V. Petrauskienė, V. Smilgevičius, S. Balickas, A. Michailovas

Abstract


Chirped pulse amplification (CPA) technique was realized in Nd:YVO4 and Nd:YAG amplifiers. The front-end of the system consists of an Yb-doped fiber-optic master oscillator and a chirped fiber Bragg grating stretcher with a chain of Nd-based solid-state amplifiers followed by a grating compressor with custom high-dispersion multilayer dielectric gratings. This allowed us to implement a relatively compact and moderately complex master oscillator power amplifier (MOPA) layout. 85 mJ of sub-20 ps pulses at 1 kHz repetition rate was obtained at the output. The amplifier features favourable parameters for OPCPA pumping.

Keywords


chirped pulse amplification (CPA); neodymium amplifiers; picosecond pulse amplifier; Nd:YAG; Nd:YVO4; optical parametric chirped pulse amplification (OPCPA)

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DOI: https://doi.org/10.3952/physics.v58i2.3745

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ISSN 1648-8504 (Print)
ISSN 2424-3647 (Online)