中国物理B ›› 2022, Vol. 31 ›› Issue (10): 104207-104207.doi: 10.1088/1674-1056/ac6ee9

所属专题: SPECIAL TOPIC — Optical field manipulation

• SPECIAL TOPIC—Optical field manipulation • 上一篇    下一篇

Spatiotemporal mode-locked multimode fiber laser with dissipative four-wave mixing effect

Ming-Wei Qiu(邱明伟), Chao-Qun Cai(蔡超群), and Zu-Xing Zhang(张祖兴)   

  1. Advanced Photonic Technology Laboratory, College of Electronic and Optical Engineering & College of Microelectronics, Nanjing University of Posts and Telecommunications, Nanjing 210023, China
  • 收稿日期:2022-03-26 修回日期:2022-05-03 出版日期:2022-10-16 发布日期:2022-09-30
  • 通讯作者: Zu-Xing Zhang E-mail:zxzhang@njupt.edu.cn
  • 基金资助:
    Project partially supported by the National Natural Science Foundation of China (Grant Nos. 91950105 and 62175116) and the 1311 Talent Plan of Nanjing University of Posts and Telecommunications.

Spatiotemporal mode-locked multimode fiber laser with dissipative four-wave mixing effect

Ming-Wei Qiu(邱明伟), Chao-Qun Cai(蔡超群), and Zu-Xing Zhang(张祖兴)   

  1. Advanced Photonic Technology Laboratory, College of Electronic and Optical Engineering & College of Microelectronics, Nanjing University of Posts and Telecommunications, Nanjing 210023, China
  • Received:2022-03-26 Revised:2022-05-03 Online:2022-10-16 Published:2022-09-30
  • Contact: Zu-Xing Zhang E-mail:zxzhang@njupt.edu.cn
  • Supported by:
    Project partially supported by the National Natural Science Foundation of China (Grant Nos. 91950105 and 62175116) and the 1311 Talent Plan of Nanjing University of Posts and Telecommunications.

摘要: The high degree of freedom and novel nonlinear phenomena of multimode fiber are attracting attention. In this work, we demonstrate a spatiotemporal mode-locked multimode fiber laser, which relies on microfiber knot resonance (MKR) via dissipative four-wave-mixing (DFMW) to achieve high-repetition-rate pulses. Apart from that, DFMW mode locking with switchable central wavelengths can also be obtained. It was further found that high pulse energy induced nonlinear effect of the dominant mode-locking mechanism transforming from DFMW to nonlinear Kerr beam cleaning effect (NL-KBC). The experimental results are valuable for further comprehending the dynamic characteristics of spatiotemporal mode-locked multimode fiber lasers, facilitating them much more accessible for applications.

关键词: microfiber knot resonance (MKR), dissipative four-wave-mixing (DFMW), nonlinear Kerr beam cleaning effect (NL-KBC), multimode fiber laser

Abstract: The high degree of freedom and novel nonlinear phenomena of multimode fiber are attracting attention. In this work, we demonstrate a spatiotemporal mode-locked multimode fiber laser, which relies on microfiber knot resonance (MKR) via dissipative four-wave-mixing (DFMW) to achieve high-repetition-rate pulses. Apart from that, DFMW mode locking with switchable central wavelengths can also be obtained. It was further found that high pulse energy induced nonlinear effect of the dominant mode-locking mechanism transforming from DFMW to nonlinear Kerr beam cleaning effect (NL-KBC). The experimental results are valuable for further comprehending the dynamic characteristics of spatiotemporal mode-locked multimode fiber lasers, facilitating them much more accessible for applications.

Key words: microfiber knot resonance (MKR), dissipative four-wave-mixing (DFMW), nonlinear Kerr beam cleaning effect (NL-KBC), multimode fiber laser

中图分类号:  (Resonators, cavities, amplifiers, arrays, and rings)

  • 42.60.Da
42.60.Fc (Modulation, tuning, and mode locking) 42.60.Jf (Beam characteristics: profile, intensity, and power; spatial pattern formation) 42.65.Ky (Frequency conversion; harmonic generation, including higher-order harmonic generation)