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Numerical study of sum frequency ultrashort pulse compression in borate crystals
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SYSNO ASEP 0538081 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Numerical study of sum frequency ultrashort pulse compression in borate crystals Author(s) Duda, Martin (FZU-D) ORCID
Novák, Ondřej (FZU-D) RID, ORCID
Smrž, Martin (FZU-D) RID, ORCID
Lucianetti, Antonio (FZU-D) RID, ORCID
Kubeček, V. (CZ)
Mocek, Tomáš (FZU-D) RID, ORCID, SAINumber of authors 6 Source Title Journal of the Optical Society of America. B. - : Optical Society of America - ISSN 0740-3224
Roč. 37, č. 11 (2020), s. 3229-3238Number of pages 10 s. Language eng - English Country US - United States Keywords second harmonic generation ; BBO ; nonlinear optical crystals ; SHG ; pulse compression Subject RIV BH - Optics, Masers, Lasers OECD category Optics (including laser optics and quantum optics) R&D Projects LO1602 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) LM2015086 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Method of publishing Limited access Institutional support FZU-D - RVO:68378271 UT WOS 000583700500050 EID SCOPUS 85094126107 DOI 10.1364/JOSAB.401657 Annotation 2nd harmonic gener.(SHG) of picosecond pulses in typeII phase-matched nonlinear optical crystals is not widely employed because of the lower efficiencies compared to the type I phase-matching scheme.The limited efficiencies come from the difference between group velocities(GV difference) of the ordinary and extraordinary polarized input pulses.However,if the input pulses are delayed before the nonlinear crystal,a short second harmonic pulse can be generated with a slowly widening temporal overlap.Furthermore,this GV difference can be controlled by the tilting of the pulse fronts,and optimal GV difference can be obtained to achieve powerful output pulses with durations an order of magnitude lower than those of the input pulses.In this work,we present numerical results of SHG pulse compression in a beta barium borate(BBO) nonlinear crystal,which is ideal for SHG of high-power 1030 nm thin-disk lasers.The pulse compression is controlled by predelay and tilting of the pulse fronts. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2021 Electronic address http://dx.doi.org/10.1364/JOSAB.401657
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