中国物理B ›› 2021, Vol. 30 ›› Issue (11): 114212-114212.doi: 10.1088/1674-1056/ac0e22

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Generation of domain-wall solitons in an anomalous dispersion fiber ring laser

Wen-Yan Zhang(张文艳)1,†, Kun Yang(杨坤)1, Li-Jie Geng(耿利杰)1, Nan-Nan Liu(刘楠楠)1, Yun-Qi Hao(郝蕴琦)1, Tian-Hao Xian(贤天浩)2, and Li Zhan(詹黎)2   

  1. 1 Henan Key Laboratory of Magnetoelectronic Information Functional Materials, School of Physics and Electronic Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, China;
    2 State Key Laboratory of Advanced Optical Communication Systems and Networks, School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
  • 收稿日期:2021-05-21 修回日期:2021-06-21 接受日期:2021-06-24 出版日期:2021-10-13 发布日期:2021-10-22
  • 通讯作者: Wen-Yan Zhang E-mail:wenyanzhang@zzuli.edu.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 11874040, 11904327, and 61905222), Foundation for Leading Talents of Minhang, Shanghai, and the Specialized Research Fund for the Doctoral Program of Zhengzhou University of Light Industry (Grant No. 0170-13501050036).

Generation of domain-wall solitons in an anomalous dispersion fiber ring laser

Wen-Yan Zhang(张文艳)1,†, Kun Yang(杨坤)1, Li-Jie Geng(耿利杰)1, Nan-Nan Liu(刘楠楠)1, Yun-Qi Hao(郝蕴琦)1, Tian-Hao Xian(贤天浩)2, and Li Zhan(詹黎)2   

  1. 1 Henan Key Laboratory of Magnetoelectronic Information Functional Materials, School of Physics and Electronic Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, China;
    2 State Key Laboratory of Advanced Optical Communication Systems and Networks, School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
  • Received:2021-05-21 Revised:2021-06-21 Accepted:2021-06-24 Online:2021-10-13 Published:2021-10-22
  • Contact: Wen-Yan Zhang E-mail:wenyanzhang@zzuli.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 11874040, 11904327, and 61905222), Foundation for Leading Talents of Minhang, Shanghai, and the Specialized Research Fund for the Doctoral Program of Zhengzhou University of Light Industry (Grant No. 0170-13501050036).

摘要: We report experimental observations performed using a net anomalous dispersion Er-doped fiber ring laser without polarization-selective elements, highlighting the domain-wall solitary pulses generated under the incoherent polarization coupling. By adjusting the pump power and the polarization state appropriately, bright and dark solitons can stably co-exist in the cavity, both centered at 1562.16 nm with a 3-dB spectral width of ~ 0.15 nm and a repetition rate of 3.83 MHz. Moreover, the 0.8 mm long thulium-doped fiber (TDF) facilitated the mode-locking and self-starting of the laser. This is the first demonstration of a laser being used to generate bright and dark solitons synchronously while using TDF as the saturable absorber (SA). Except possessing the all-fiber structure, the laser exhibits good stability, which may have a significant influence on improvement of the pulse-laser design, and may broaden practical applications in optical sensing, optical communication, and soliton multiplexed systems.

关键词: optical solitons, fiber lasers, domain wall soliton, pulse laser

Abstract: We report experimental observations performed using a net anomalous dispersion Er-doped fiber ring laser without polarization-selective elements, highlighting the domain-wall solitary pulses generated under the incoherent polarization coupling. By adjusting the pump power and the polarization state appropriately, bright and dark solitons can stably co-exist in the cavity, both centered at 1562.16 nm with a 3-dB spectral width of ~ 0.15 nm and a repetition rate of 3.83 MHz. Moreover, the 0.8 mm long thulium-doped fiber (TDF) facilitated the mode-locking and self-starting of the laser. This is the first demonstration of a laser being used to generate bright and dark solitons synchronously while using TDF as the saturable absorber (SA). Except possessing the all-fiber structure, the laser exhibits good stability, which may have a significant influence on improvement of the pulse-laser design, and may broaden practical applications in optical sensing, optical communication, and soliton multiplexed systems.

Key words: optical solitons, fiber lasers, domain wall soliton, pulse laser

中图分类号:  (Ultrafast processes; optical pulse generation and pulse compression)

  • 42.65.Re
42.65.Tg (Optical solitons; nonlinear guided waves) 11.27.+d (Extended classical solutions; cosmic strings, domain walls, texture) 75.60.Ch (Domain walls and domain structure)