biostudies-literatureXiao ZNational Natural Science Foundation of ChinaNational Natural Science Foundation of China (National Science Foundation of China)33https://www.ebi.ac.uk/biostudies/studies/S-EPMC9892599biostudies-literatureUnknown12(1)The developing advances of microresonator-based Kerr cavity solitons have enabled versatile applications ranging from communication, signal processing to high-precision measurements. Resonator dispersion is the key factor determining the Kerr comb dynamics. Near the zero group-velocity-dispersion (GVD) regime, low-noise and broadband microcomb sources are achievable, which is crucial to the application of the Kerr soliton. When the GVD is almost vanished, higher-order dispersion can significantly affect the Kerr comb dynamics. Although many studies have investigated the Kerr comb dynamics near the zero-dispersion regime in microresonator or fiber ring system, limited by dispersion profiles and dispersion perturbations, the near-zero-dispersion soliton structure pumped in the anomalous dispLight, science & applicationsNear-zero-dispersion soliton and broadband modulational instability Kerr microcombs in anomalous dispersion.PMC98925996187512261922056Wu KHuang YLi CLi TCai MChen JXiao ZZhang HYao BfalseNear-zero-dispersion soliton and broadband modulational instability Kerr microcombs in anomalous dispersion.The developing advances of microresonator-based Kerr cavity solitons have enabled versatile applications ranging from communication, signal processing to high-precision measurements. Resonator dispersion is the key factor determining the Kerr comb dynamics. Near the zero group-velocity-dispersion (GVD) regime, low-noise and broadband microcomb sources are achievable, which is crucial to the application of the Kerr soliton. When the GVD is almost vanished, higher-order dispersion can significantly affect the Kerr comb dynamics. Although many studies have investigated the Kerr comb dynamics near the zero-dispersion regime in microresonator or fiber ring system, limited by dispersion profiles and dispersion perturbations, the near-zero-dispersion soliton structure pumped in the anomalous disp2023-01-01T00:00:00Z2023 Feb2026-07-16T20:11:30.428Z2025-06-01T01:57:02.5ZS-EPMC98925993672583310.1038/s41377-023-01076-8