Vojtěch Grossmann

1 kHz, 12 mJ, 15 fs, supercontinuum-seeded OPCPA laser as an auxiliary beam for pump-probe experiments

Emily Erdman, Jakub Novák, Peter Dupej, Vojtěch Grossmann et autres

The femtosecond synchronization project (FSYNC) at ELI-Beamlines in Czechia aims to improve experiments with the L1-Allegra laser (up to 50 mJ at 1 kHz, 15 fs pulse duration) by providing another beamline that can run in two configurations—either independently, allowing two experiments …

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1.7 W optical parametric oscillator tunable between 1.48-1.61μm and 3.14-3.77μm for generation of 10 picosecond pulses at 70 MHz

Vojtěch Grossmann, Milan Frank, Michal Jelinek, David Vyhĺıdal et autres

We designed, developed and characterized optical parametrical oscillator with periodically poled nonlinear crystal PPLN for picosecond pulse generation in 1.5 μm region. We achieved tunability between 1482 and 1612 nm using different poling periods of the PPLN crystal and temperature tuning with …

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A 1 Khz, 12 Mj, 15 Fs, Supercontinuum Seeded Opcpa Laser (Fsync) as an Auxiliary Beam for Pump-Probe Experiments

Emily Erdman, Jakub Novák, P. Dupej, Vojtěch Grossmann et autres

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Coherent combining of broadband pulses after free space optical parametric amplification

Gaudenis Jansonas, Emily Erdman, Jakub Novák, Roman Antipenkov et autres

In this study, we present the experimental proof of concept of the polarization-based filled-aperture coherent combination of two distinct broadband (sub-20 fs transform limited pulse duration at around 795 nm central wavelength) optical parametric chirped pulse amplification systems in free space. An …

cz (code pays fourni par la source)

Optical parametrical oscillator for generation of picosecond, near-infrared pulses

Vojtěch Grossmann

Návrh, vývoj a charakterizace optického parametrického oscilátoru na bázi periodicky pólovaného nelineárního krystalu PPLN pro generaci pikosekundových impulsů v infračervené oblasti. Hlavním cílem je generace signálové vlny, jakožto i její detekce, a dále studium dynamiky synchronně čerpaných optických parametrických oscilátorů.

Coherent combining of broadband pulses after free space optical parametric amplification

Gaudenis Jansonas, Emily Erdman, Jakub Novák, Roman Antipenkov et autres

In this study, we present the experimental proof of concept of the polarization-based filled-aperture coherent combination of two distinct broadband (sub-20 fs transform limited pulse duration at around 795 nm central wavelength) optical parametric chirped pulse amplification systems in free space. An …

lt, cz (code pays fourni par la source)

Coherent combining of broadband pulses after free space optical parametric amplification

Gaudenis Jansonas, Emily Erdman, Jakub Novák, Roman Antipenkov et autres

In this study, we present the experimental proof of concept of the polarization-based filled-aperture coherent combination of two distinct broadband (sub-20 fs transform limited pulse duration at around 795 nm central wavelength) optical parametric chirped pulse amplification systems in free space. An …

lt, cz (code pays fourni par la source)

Coherent combining of broadband pulses after free space optical parametric amplification

Gaudenis Jansonas, Emily Erdman, Jakub Novák, Roman Antipenkov et autres

In this study, we present the proof of concept of the polarization-based filled-aperture coherent combination of two distinct broadband sub-20fs transform limited pulse duration optical parametric chirped pulse amplification systems in free-space. An average combination efficiency of 90% is demonstrated.

lt, cz (code pays fourni par la source)

Passively mode-locked laser by nonlinear mirror

Vojtěch Grossmann

Nelineární zrcadlo představuje zajímavou metodu generace ultrakrátkých impulsů v pevnolátkových laserech. Cílem práce bylo seznámit se s principem nelineárního zrcadla založeného na periodicky pólovaném lithium niobátu (PPLN) a jeho využitím v laseru s aktivním prostředím Nd:YVO4. Teoretická část práce byla věnována metodám …