中国物理B ›› 2025, Vol. 34 ›› Issue (7): 74206-074206.doi: 10.1088/1674-1056/adc40a

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Real-time observations of the transition dynamics between multiple nonlinear states in a coherently driven Kerr fiber-loop resonator

Yayu Cao(曹亚昱)1, Heng Dong(董恒)1, and Xiankun Yao(姚献坤)1,2,3,†   

  1. 1 School of Physics, Northwest University, Xi'an 710127, China;
    2 Shaanxi Key Laboratory for Theoretical Physics Frontiers, Xi'an 710127, China;
    3 Peng Huanwu Center for Fundamental Theory, Xi'an 710127, China
  • 收稿日期:2025-02-18 修回日期:2025-03-13 接受日期:2025-03-24 出版日期:2025-06-18 发布日期:2025-07-10
  • 通讯作者: Xiankun Yao E-mail:yaoxk@nwu.edu.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 12475006 and 12004309) and the Shaanxi Fundamental Science Research Project for Mathematics and Physics (Grant No. 22JSQ036).

Real-time observations of the transition dynamics between multiple nonlinear states in a coherently driven Kerr fiber-loop resonator

Yayu Cao(曹亚昱)1, Heng Dong(董恒)1, and Xiankun Yao(姚献坤)1,2,3,†   

  1. 1 School of Physics, Northwest University, Xi'an 710127, China;
    2 Shaanxi Key Laboratory for Theoretical Physics Frontiers, Xi'an 710127, China;
    3 Peng Huanwu Center for Fundamental Theory, Xi'an 710127, China
  • Received:2025-02-18 Revised:2025-03-13 Accepted:2025-03-24 Online:2025-06-18 Published:2025-07-10
  • Contact: Xiankun Yao E-mail:yaoxk@nwu.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 12475006 and 12004309) and the Shaanxi Fundamental Science Research Project for Mathematics and Physics (Grant No. 22JSQ036).

摘要: Passive Kerr fiber-loop resonators driven by coherent lasers exhibit a variety of nonlinear states, including modulation instability (MI), localized dissipative structures (solitons), and chaos. Although these transitions have been predicted theoretically, experimental real-time observations are rare in coherently driven Kerr fiber-loop resonators. In this study, we observed real-time transitions between the predicted nonlinear states by sweeping detuning both positively and negatively. We discovered the transition path between nonlinear states depending on the direction of detuning, providing new insights into the nonlinear dynamics. Our findings directly validate theoretical predictions and offer potential implications for future nonlinear optical applications.

关键词: nonlinear optics, cavity solitons, Kerr resonator, modulation instability

Abstract: Passive Kerr fiber-loop resonators driven by coherent lasers exhibit a variety of nonlinear states, including modulation instability (MI), localized dissipative structures (solitons), and chaos. Although these transitions have been predicted theoretically, experimental real-time observations are rare in coherently driven Kerr fiber-loop resonators. In this study, we observed real-time transitions between the predicted nonlinear states by sweeping detuning both positively and negatively. We discovered the transition path between nonlinear states depending on the direction of detuning, providing new insights into the nonlinear dynamics. Our findings directly validate theoretical predictions and offer potential implications for future nonlinear optical applications.

Key words: nonlinear optics, cavity solitons, Kerr resonator, modulation instability

中图分类号:  (Optical solitons; nonlinear guided waves)

  • 42.65.Tg
42.81.Dp (Propagation, scattering, and losses; solitons) 42.65.Sf (Dynamics of nonlinear optical systems; optical instabilities, optical chaos and complexity, and optical spatio-temporal dynamics) 42.65.-k (Nonlinear optics)