2026-10-12T11:10:00Z https://www.scidb.cn/oai

10.57760/sciencedb.08177 2024-06-07T08:58:39Z

2024-06-07 Broadband Dispersive-Wave Emission Coupled with Two-Stage Soliton Self-Compression in Gas-Filled Anti-Resonant Hollow-Core Fibers doi:10.57760/sciencedb.08177 en We studied the underlying mechanism of broadband dispersive-wave emission within a resonance band of gas-filled anti-resonant hollow-core fiber. Both numerical and experimental results unveiled that the pump pulse with a soliton order of ~3, launched into the hollow-core fiber, experienced two stages of pulse compression, resulting in a multi-peak structure of the emitted dispersive-wave spectrum. Over the first-stage pulse compression, a sharp increase of the pulse peak power triggered the first time of dispersive-wave emission, and simultaneously caused the soliton frequency blue-shift due to soliton-plasma interactions. As the central frequency of the blue-shifting soliton approached to a resonance band of the hollow-core fiber, it experienced a fast-decreasing dispersion value in the fiber waveguide, resulting in the second stage of pulse compression. The second-stage pulse compression triggered the second time of dispersive-wave emission with a phase-matched frequency slightly lower than that at the first stage. Multi-peak spectra of the output dispersive-waves and their formation dynamics can be understood using a delicate and unique coupling mechanism among three nonlinear effects including multi-stage soliton compression, soliton-plasma interaction and phase-matched dispersive-wave emission. The output broadband dispersive-wave, exhibiting good coherence and stability, could be potentially compressed to sub-30 fs duration using precise chirp-compensation technique. dispersive wave; Hollow Core Fiber; soliton Jinyu Pan Zhiyuan Huang Yifei Chen Zhuozhao Luo Fei Yu Dakun Wu Tiandao Chen Donghan Liu Yue Yu Wenbin He Xin Jiang Meng Pang Yuxin Leng Ruxin Li PUBLIC https://creativecommons.org/licenses/by-nc-nd/4.0/ dataset Science Data Bank