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Importance of crystal length on the stability of a picosecond supercontinuum generated in undoped YAG
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SYSNO ASEP 0571958 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Importance of crystal length on the stability of a picosecond supercontinuum generated in undoped YAG Author(s) Roškot, Lukáš (FZU-D) ORCID
Novák, Ondřej (FZU-D) RID, ORCID
Csanaková, Bianka (FZU-D) ORCID
Mužík, Jiří (FZU-D) ORCID
Smrž, Martin (FZU-D) RID, ORCID
Jelínek, M. (CZ)
Mocek, Tomáš (FZU-D) RID, ORCID, SAINumber of authors 7 Source Title Journal of the Optical Society of America. B. - : Optical Society of America - ISSN 0740-3224
Roč. 40, č. 6 (2023), s. 1391-1397Number of pages 7 s. Language eng - English Country US - United States Keywords YAG crystal ; Yb thin-disk ; regenerative amplifier Subject RIV BH - Optics, Masers, Lasers OECD category Optics (including laser optics and quantum optics) R&D Projects EF15_003/0000445 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) EF15_006/0000674 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Method of publishing Open access with time embargo (01.12.2023) Institutional support FZU-D - RVO:68378271 UT WOS 001013324600001 EID SCOPUS 85160200458 DOI 10.1364/JOSAB.486750 Annotation In this paper, we present the stability characteristics of a supercontinuum (SC) generated in a 60 mm, 100 mm, and 130 mm long undoped yttrium aluminum garnet (YAG) crystal pumped by a Yb thin-disk regenerative amplifier. The 1.2 ps pulses with a central wavelength of 1030 nm and repetition rate of 89 kHz are loosely focused (NA = 0.0031) into the crystal in order to prevent laser-induced damage and to increase the energy stability of the generated SC. Out of the tested crystal lengths, the optimal is experimentally determined to be 130 mm. The energy contained in the blueshifted side, which has a 530 nm spectral cutoff, is 71 nJ and exhibits average power stability of 0.4% RMS, which is 2.5× better than the stability of the pump beam. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2024 Electronic address https://hdl.handle.net/11104/0342812
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