中国物理B ›› 2026, Vol. 35 ›› Issue (4): 44201-044201.doi: 10.1088/1674-1056/ae063c

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Dissipative soliton operation in a mode-locked laser based on thulium-doped fiber

Wen-Yan Zhang(张文艳)1, Lei Zheng(郑磊)1, Tian Zhang(张添)1, Nan-Nan Liu(刘楠楠)1, Li-Jie Geng(耿利杰)1, Kun Yang(杨坤)1,†, and Li Zhan(詹黎)2   

  1. 1 School of Electronics and Information, 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:2025-07-16 修回日期:2025-08-28 接受日期:2025-09-12 发布日期:2026-04-01
  • 通讯作者: Kun Yang E-mail:yangkun@zzuli.edu.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 62105296 and 62305209), the Key Research and Development Projects of Henan Province, China (Grant No. 241111212600), the Henan Provincial Science and Technology Research Project (Grant Nos. 252102220036 and 242102210145), the Key Research Project of Higher Education Institutions of Henan Province, China (Grant No. 26A510020), and the Youth Backbone Project of Zhengzhou University of Light Industry.

Dissipative soliton operation in a mode-locked laser based on thulium-doped fiber

Wen-Yan Zhang(张文艳)1, Lei Zheng(郑磊)1, Tian Zhang(张添)1, Nan-Nan Liu(刘楠楠)1, Li-Jie Geng(耿利杰)1, Kun Yang(杨坤)1,†, and Li Zhan(詹黎)2   

  1. 1 School of Electronics and Information, 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:2025-07-16 Revised:2025-08-28 Accepted:2025-09-12 Published:2026-04-01
  • Contact: Kun Yang E-mail:yangkun@zzuli.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 62105296 and 62305209), the Key Research and Development Projects of Henan Province, China (Grant No. 241111212600), the Henan Provincial Science and Technology Research Project (Grant Nos. 252102220036 and 242102210145), the Key Research Project of Higher Education Institutions of Henan Province, China (Grant No. 26A510020), and the Youth Backbone Project of Zhengzhou University of Light Industry.

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摘要： We report a dissipative soliton laser utilizing thulium-doped fiber as the saturable absorber. By adjusting the polarization controller and pump power, a stable fundamental dissipative pulse has been successfully achieved, featuring a center wavelength of 1565.88 nm, a 3-dB bandwidth of 1.20 nm, a repetition frequency of 36.9 MHz, and a signal-to-noise ratio of 64 dB. Combined the gradual increase of the pump power with the intracavity polarization optimization, the spectral morphology evolves into a parabolic shape, $\Pi$-shape, and M-shape. Moreover, through increasing the gain, multiple dissipative pulses include dissipative soliton pairs and triples are manifested because of the peak power clamping effect. The repetition frequencies are 73.8 MHz and 110.7 MHz, respectively, with signal-to-noise ratios both more than 60 dB, indicating that the constructed dissipative soliton laser has excellent stability. This study not only enhances the understanding of the nonlinear dynamic process of dissipative soliton generation, but also offers a novel approach for designing ultrafast lasers characterized by high stability and an all-fiber structure.

关键词: mode-locked fiber laser, thulium-doped fiber, pulsed laser, dissipative soliton

Abstract: We report a dissipative soliton laser utilizing thulium-doped fiber as the saturable absorber. By adjusting the polarization controller and pump power, a stable fundamental dissipative pulse has been successfully achieved, featuring a center wavelength of 1565.88 nm, a 3-dB bandwidth of 1.20 nm, a repetition frequency of 36.9 MHz, and a signal-to-noise ratio of 64 dB. Combined the gradual increase of the pump power with the intracavity polarization optimization, the spectral morphology evolves into a parabolic shape, $\Pi$-shape, and M-shape. Moreover, through increasing the gain, multiple dissipative pulses include dissipative soliton pairs and triples are manifested because of the peak power clamping effect. The repetition frequencies are 73.8 MHz and 110.7 MHz, respectively, with signal-to-noise ratios both more than 60 dB, indicating that the constructed dissipative soliton laser has excellent stability. This study not only enhances the understanding of the nonlinear dynamic process of dissipative soliton generation, but also offers a novel approach for designing ultrafast lasers characterized by high stability and an all-fiber structure.

Key words: mode-locked fiber laser, thulium-doped fiber, pulsed laser, dissipative soliton

中图分类号:  (Fiber lasers)

  • 42.55.Wd
42.65.Tg (Optical solitons; nonlinear guided waves) 42.60.-v (Laser optical systems: design and operation) 42.65.Re (Ultrafast processes; optical pulse generation and pulse compression)