期刊
OPTICS EXPRESS
卷 31, 期 6, 页码 10617-10624出版社
Optica Publishing Group
DOI: 10.1364/OE.486577
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We report the generation of the first sub-60 fs pulse from a diode-pumped SESAM mode-locked Yb-laser using a non-centrosymmetric Yb:YAl3(BO3)4 crystal. By utilizing a spatially single-mode, fiber-coupled 976 nm InGaAs laser diode, the laser exhibited a slope efficiency of 65.1% and a wavelength tuning range of 59 nm. With the implementation of a commercial SESAM and a 1 mm-thick laser crystal, the laser achieved pulses as short as 56 fs at a central wavelength of 1044.6 nm.
We report on the first sub-60 fs pulse generated from a diode-pumped SESAM mode-locked Yb-laser based on a non-centrosymmetric Yb:YAl3(BO3)4 crystal as a gain medium. In the continuous-wave regime, pumping with a spatially single-mode, fiber-coupled 976 nm InGaAs laser diode, the Yb:YAl3(BO3)4 laser generated 391 mW at 1041.7 nm with a slope efficiency as high as 65.1%, and a wavelength tuning across 59 nm (1019 to 1078 nm) was achieved. By implementing a commercial SESAM to initiate and sustain the soliton type mode-locking, and using only a 1 mm-thick laser crystal, the Yb:YAl3(BO3)4 laser delivered pulses as short as 56 fs at a central wavelength of 1044.6 nm with an average output power of 76 mW at a pulse repetition rate of similar to 67.55 MHz. To the best of our knowledge, this result represents the shortest pulses ever achieved from Yb:YAB crystal.(c) 2023 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement
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