Article Dans Une Revue Optics Express Année : 2025

Diode-pumped mode-locked Yb:YScO3 laser

Résumé

To the best of our knowledge, we report on the mode-locking of the mixed sesquioxide single crystal Yb:YScO3 for the first time. The spectra of Yb3+ ions in this crystal were studied at both room temperature and low temperature. A continuous-wave laser output at 1080 nm was achieved using a fiber-coupled semiconductor laser, with a pump wavelength of 976 nm, in the Yb:YScO3 crystal, yielding a maximum output power of 7.45 W and a slope efficiency of 52.3%. By implementing a SESAM for initiating and stabilizing the mode-locked operation, the Yb:YScO3 laser produced soliton pulses as short as 48 fs at 1056.4 nm, with an average output power of 45 mW at a pulse repetition rate of ∼ 71.55 MHz. These results suggest that Yb:YScO3 crystals are promising candidates for high-power ultrashort pulse lasers.

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hal-04996668 , version 1 (19-03-2025)

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Longxin Liu, Jian Liu, Zhiyong Liang, Zhengxin Jiang, Chuang Yang, et al.. Diode-pumped mode-locked Yb:YScO3 laser. Optics Express, 2025, 33 (4), pp.7508. ⟨10.1364/OE.549309⟩. ⟨hal-04996668⟩
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