Počet záznamů: 1

Spectral broadening and a prospect for pulse compression of Yb:YAG thin-disk laser pulses by nonlinear SHG in a BBO crystal with time predelay and tilting of the pulse fronts

SYSNO ASEP	0556011
Druh ASEP	J - Článek v odborném periodiku
Zařazení RIV	J - Článek v odborném periodiku
Poddruh J	Článek ve WOS
Název	Spectral broadening and a prospect for pulse compression of Yb:YAG thin-disk laser pulses by nonlinear SHG in a BBO crystal with time predelay and tilting of the pulse fronts
Tvůrce(i)	Duda, Martin (FZU-D)_ORCID Novák, Ondřej (FZU-D)_{RID, ORCID} Cimrman, Martin (FZU-D)_ORCID Huynh, Jaroslav (FZU-D)_{RID, ORCID} Smrž, Martin (FZU-D)_{RID, ORCID} Mocek, Tomáš (FZU-D)_{RID, ORCID, SAI}
Celkový počet autorů	6
Zdroj.dok.	Optics Continuum. - : Optica - ISSN 2770-0208 Roč. 1, č. 1 (2022), s. 16-30
Poč.str.	16 s.
Jazyk dok.	eng - angličtina
Země vyd.	US - Spojené státy americké
Klíč. slova	pulse compression ; nonlinear optical crystal ; Yb:YAG laser ; BBO crystals
Vědní obor RIV	BH - Optika, masery a lasery
Obor OECD	Optics (including laser optics and quantum optics)
CEP	EF15_006/0000674 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy
Způsob publikování	Open access
Institucionální podpora	FZU-D - RVO:68378271
UT WOS	000835315500003
EID SCOPUS	85125951362
DOI	10.1364/OPTCON.437879
Anotace	Pulse compression by second harmonic generation in a type II nonlinear optical crystal controlled by a time predelay of the faster input pulse is not simple to achieve high-average power Yb:YAG lasers with wavelength of 1030 nm. The reason is that the borate nonlinear crystals with their excellent thermal properties do not have the optimal ratio of group velocities of the interacting pulses to achieve efficient pulse compression. We have changed the effective group velocities by tilting the pulse fronts at a diffraction grating and imaging the tilted 1.7 ps pulses into the 6 and 8.5 mm thick BBO crystals. As a result, we have measured significant spectral broadening to 4.5 nm, supporting pulses as short as 100 fs, with an energy conversion efficiency in excess of 20 %. The measured data correspond well with numerical simulations. This research opens a way to extend the range of possible applications of Yb:YAG high-average-power thin-disk lasers into the fs regime.
Pracoviště	Fyzikální ústav
Kontakt	Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579
Rok sběru	2023
Elektronická adresa	http://hdl.handle.net/11104/0330377

Počet záznamů: 1