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  • Received: Dec. 12, 2019

    Accepted: Apr. 16, 2020

    Posted: Jun. 11, 2020

    Published Online: Jun. 11, 2020

    The Author Email: Jiangfeng Zhu (

    DOI: 10.3788/COL202018.071402

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    Han Liu, Geyang Wang, Jianwang Jiang, Wenlong Tian, Dacheng Zhang, Hainian Han, Shaobo Fang, Jiangfeng Zhu, Zhiyi Wei. Sub-10-fs pulse generation from a blue laser-diode-pumped Ti:sapphire oscillator[J]. Chinese Optics Letters, 2020, 18(7): 071402

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Chinese Optics Letters, Vol. 18, Issue 7, 071402 (2020)

Sub-10-fs pulse generation from a blue laser-diode-pumped Ti:sapphire oscillator 

Han Liu1, Geyang Wang1, Jianwang Jiang1, Wenlong Tian1, Dacheng Zhang1, Hainian Han2, Shaobo Fang2, Jiangfeng Zhu1,*, and Zhiyi Wei2

Author Affiliations

  • 1School of Physics and Optoelectronic Engineering, Xidian University, Xi’an 710071, China
  • 2Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China


Pulses as short as 8.1 fs were generated from a blue laser-diode-pumped Kerr-lens mode-locked Ti:sapphire oscillator, with an average power of 27 mW and a repetition rate of 120.6 MHz. The full width at half-maximum exceeds 146 nm, benefitting from the dispersion management by a combination of a low-dispersion fused silica prism pair and a series of double-chirped mirrors. To the best of our knowledge, this is the first time to generate sub-10-fs pulses from a laser diode directly pumped Ti:sapphire oscillator.


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