Diode-pumped mode-locked Yb:YScO 3 laser

作者：L.Z. Liu, Jian Liu, Zhiyong Liang, Zhengxin Jiang, Chuang Yang, Chong Xu, Jie Ma, XU Xiao-dong, Kheirreddine Lebbou, Haiyu Nie, Ge Zhang, Weidong Chen, Jun Xu · 发表于：Optics Express · 年份：2025 · DOI：10.1364/oe.549309 · 被引用次数：9 · 研究领域：Solid State Laser Technologies、Advanced Fiber Laser Technologies、Photorefractive and Nonlinear Optics

To the best of our knowledge, we report on the mode-locking of the mixed sesquioxide single crystal Yb:YScO 3 for the first time. The spectra of Yb 3+ 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:YScO 3 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:YScO 3 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:YScO 3 crystals are promising candidates for high-power ultrashort pulse lasers.