Dark soliton trains generation from self-mode-locking fiber laser with an ultra-long ring cavity

Yuzhai Pan; Tianqi Zhang; Xiaohui Qi; Zhaoshuo Tian; Wenjun Liu; Jieguang Miao; Quanli Dong

doi:10.1117/12.2550055

12 March 2020 Dark soliton trains generation from self-mode-locking fiber laser with an ultra-long ring cavity

Yuzhai Pan, Tianqi Zhang, Xiaohui Qi, Zhaoshuo Tian, Wenjun Liu, Jieguang Miao, Quanli Dong

Proceedings Volume 11437, 2019 International Conference on Optical Instruments and Technology: Advanced Laser Technology and Applications; 114370N (2020) https://doi.org/10.1117/12.2550055
Event: 2019 International Conference on Optical Instruments and Technology, 2019, Beijing, China

Abstract

We demonstrated a multi-dark soliton train generated from self-mode-locking ultra-long ring cavity fiber laser. The fiber laser used 10m double-clad Yb-doped fiber as gain medium, and used a polarization independent isolator to ensure the light propagation in one direction. The ring cavity of the laser was designed without any intra-cavity polarization controlling component. The cavity length is 1300 meters by insetting single mode fiber. When the pump power was increased to 2.75W, the multi-dark soliton trains were obtained. The stable pulse train has a repetition rate of 153.9 kHz corresponding to the cavity length. The number of sub-pulse continues to decrease during the increase of the incident pumping power until 3.39W. Stable three peaks appear in the spectra of our fiber laser due to the absence of the polarization controller in the cavity. The maximum peak wavelength locates around 1083.9nm with the 3dB bandwidth of 1.4nm. There are two sidebands with the central wavelength of 1086.3nm and 1090.1nm with a lower intensity. The occurrence of multi-dark soliton pulses train is relevant to the self-mode-locked operation at the cavity with a large amount of normal dispersion and accumulated nonlinearity.

Citation Download Citation

Yuzhai Pan, Tianqi Zhang, Xiaohui Qi, Zhaoshuo Tian, Wenjun Liu, Jieguang Miao, and Quanli Dong "Dark soliton trains generation from self-mode-locking fiber laser with an ultra-long ring cavity", Proc. SPIE 11437, 2019 International Conference on Optical Instruments and Technology: Advanced Laser Technology and Applications, 114370N (12 March 2020); https://doi.org/10.1117/12.2550055

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KEYWORDS

Solitons

Fiber lasers

Polarization

Modulation

Nonlinear optics

Optical filters

Phase shift keying

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