0573256 - FZÚ 2024 RIV NL eng J - Článek v odborném periodiku
Slimi, S. - Jambunathan, Venkatesan - Zin Elabedine, G. - Yu, C. - Zhang, H. - Chen, W. - Solé, R.M. - Aguiló, M. - Díaz, F. - Smrž, Martin - Mocek, Tomáš - Mateos, X.
Spectroscopic and lasing characteristics of Yb:YGG at cryogenic temperatures.
Optics and Laser Technology. Roč. 167, Dec. (2023), č. článku 109713. ISSN 0030-3992. E-ISSN 1879-2545
Grant CEP: GA MŠMT EF15_006/0000674
GRANT EU: European Commission(XE) 739573 - HiLASE CoE
Grant ostatní: OP VVV - HiLASE-CoE(XE) CZ.02.1.01/0.0/0.0/15_006/0000674
Institucionální podpora: RVO:68378271
Klíčová slova: gallium garnet crystals * Yb³⁺ ions * spectroscopy * cryogenic lasers
Obor OECD: Optics (including laser optics and quantum optics)
Impakt faktor: 4.6, rok: 2023 ; AIS: 0.698, rok: 2023
Způsob publikování: Open access
DOI: https://doi.org/10.1016/j.optlastec.2023.109713

We report on the optical spectroscopy and continuous-wave (CW) laser operation of ytterbium-doped yttrium gallium garnet (Yb:YGG) crystal at cryogenic temperatures. A maximum absorption cross-section of 1.7 × 10-20 cm2 with spectral bandwidth of 2.4 nm centered at 970.5 nm and a maximum emission cross-section of 6.5 × 10- 20 cm2 with spectral bandwidth of 4.6 nm centered at 1024 nm were determined at 120 K. Cryogenic continuous wave laser operation was achieved using a VBG stabilized laser diode emitting around 969 nm as pump source. At 120 K, a maximum output power of 17.50 W was achieved around 1024 nm corresponding to a slope efficiency of 87% with respect to the absorbed power.
Trvalý link: https://hdl.handle.net/11104/0343726