All-fiber mode-locked ytterbium-doped fiber laser with a saturable absorber based on nonlinear Kerr beam cleanup effect
| Autor: | Zhang, Baofu, Ma, Shanchao, Lu, Sihua, He, Qiurun, Guo, Jing, Jiao, Zhongxing, Wang, Biao |
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| Rok vydání: | 2020 |
| Předmět: | |
| Zdroj: | Optics Letters 45 (2020) 6050-6053 |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1364/OL.410610 |
| Popis: | We theoretically and experimentally demonstrate a novel mode-locked ytterbium-doped fiber laser with a saturable absorber based on nonlinear Kerr beam cleanup effect. The saturable absorber was formed by a 2-m graded-index multimode fiber and a single-mode fiber segment served as a diaphragm. With an all-normal-dispersion-fiber configuration, the laser generated dissipative soliton pulses with pulse duration of 26.38 ps and pulse energy more than 0.25 nJ; output pulses could be compressed externally to 615.7 fs. Moreover, the self-starting mode-locking operation of this laser exhibited a high stability with a measured signal-to-noise ratio of 73.4 dB in the RF spectrum. Comment: 9 pages, 5 figures |
| Databáze: | arXiv |
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