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EP 4 824 904 A1

(12)

(43) Date of publication: 21.10.2026 Bulletin 2026/43 (21) Application number: 24837309.4 (22) Date of filing: 11.12.2024

(51) International Patent Classification (IPC):  H01S 3/094(2006.01) H01S 5/0225(2021.01) H01S 3/16(2006.01) H01S 3/0941(2006.01) H01S 3/06(2006.01) H01S 5/40(2006.01) (52) Cooperative Patent Classification (CPC): H01S 3/094057; H01S 3/09415; H01S 3/0612; H01S 3/061; H01S 3/1643; H01S 2301/206; H01S 3/0621; G02B 27/09; H01S 3/115; H01S 5/0225; H01S 5/02253; H01S 5/4025 (86) International application number: PCT/CZ2024/050080 (87) International publication number: WO 2025/124624 (19.06.2025 Gazette 2025/25)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: GE KH MA MD TN (30) Priority: 11.12.2023 LU 505737 (71) Applicant: Fyzikální ústav AV CR, v.v.i. 18221 Praha 8 (CZ)	(72) Inventors: HASHIMOTO, Kohei 25241 Dolni Brezany (CZ) CHYLA, Michal 25241 Dolni Brezany (CZ) SMRZ, Martin 25241 Dolni Brezany (CZ) BRYNZA, Mykola 25241 Dolni Brezany (CZ) ZACEK, Matej 25241 Dolni Brezany (CZ) (74) Representative: Bauer, Karel  Uresova 1266/2 148 00 Praha 4 148 00 Praha 4 (CZ)