2-GHz watt-level Kerr-lens mode-locked Yb:KGW laser | Zendy

Zheng Li | Zendy; Wenlong Tian | Zendy; Han Liu | Zendy; Geyang Wang | Zendy; Chuan Bai | Zendy; Rui Xu | Zendy; Dacheng Zhang | Zendy; Hainian Han | Zendy; Jiangfeng Zhu | Zendy; Zhiyi Wei | Zendy

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2-GHz watt-level Kerr-lens mode-locked Yb:KGW laser

Author(s) -

Zheng Li,

Wenlong Tian,

Han Liu,

Geyang Wang,

Chuan Bai,

Rui Xu,

Dacheng Zhang,

Hainian Han,

Jiangfeng Zhu,

Zhiyi Wei

Publication year - 2021

Publication title -

optics express

Language(s) - Uncategorized

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.424139

Subject(s) - optics , output coupler , mode locking , femtosecond , laser , lens (geology) , materials science , pulse duration , fiber laser , power (physics) , kerr effect , physics , nonlinear system , quantum mechanics

We report on a 2-GHz high-power Kerr-lens mode-locked Yb:KGW laser pumped by a single-mode fiber laser. The output performance for two different output coupling rates was investigated. Stable bidirectional mode-locking operation at the repetition rate of 2.157 GHz was obtained with a 0.6% output coupler. The average output powers of bidirectional operation are 741 mW and 746 mW, with 123-fs and 126-fs pulse durations, respectively. By using a 1.6% output coupler, unidirectional mode-locking is achieved with 145-fs pulse duration and 1.7-W average output power, which, to the best of our knowledge, is the highest average power from Kerr-lens mode-locked GHz femtosecond oscillators.

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