Self-injection-locked dark-soliton Kerr optical frequency combs with high even-order normal dispersion
Abstract
We numerically investigate dissipative dark-soliton (DDS) microcombs under the action of pure high even-order normal (HEON) dispersion in a microresonator with the self-injection locking (SIL). Pure 4th, 6th, 10th, and 14th-order normal dispersion can support DDSs formed by interlocked switching waves, directly excited through a SIL-based turnkey scheme without detuning sweeps. Compared to the pure 4th-order case, the switching-wave tail oscillation period increases and its decay rate decreases with the increase of the dispersion order. Although the overall comb bandwidth narrows, the number of non-pump comb lines above a common absolute power threshold increases. Furthermore, the feedback phase controls the DDS duty cycle and intracavity comb-line power distribution, while the increase of the pump power improves the estimated pump-to-comb output conversion efficiency.
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BibTeX
@misc{shi2026selfinjectionlocked,
title = {{Self-injection-locked dark-soliton Kerr optical frequency combs with high even-order normal dispersion}},
author = {Lei Shi and Rujiang Li and Shilong Liu and Dumitru Mihalache and Boris A. Malomed and Pengfei Li},
howpublished = {arXiv},
year = {2026},
month = nov,
doi = {10.48550/arxiv.2611.08848},
eprint = {2611.08848},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2611.08848},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Self-injection-locked dark-soliton Kerr optical frequency combs with high even-order normal dispersion
AU - Lei Shi
AU - Rujiang Li
AU - Shilong Liu
AU - Dumitru Mihalache
AU - Boris A. Malomed
AU - Pengfei Li
PY - 2026
DA - 2026/11/06
PB - arXiv
DO - 10.48550/arxiv.2611.08848
UR - https://arxiv.org/abs/2611.08848
AB - We numerically investigate dissipative dark-soliton (DDS) microcombs under the action of pure high even-order normal (HEON) dispersion in a microresonator with the self-injection locking (SIL). Pure 4th, 6th, 10th, and 14th-order normal dispersion can support DDSs formed by interlocked switching waves, directly excited through a SIL-based turnkey scheme without detuning sweeps. Compared to the pure 4th-order case, the switching-wave tail oscillation period increases and its decay rate decreases with the increase of the dispersion order. Although the overall comb bandwidth narrows, the number of non-pump comb lines above a common absolute power threshold increases. Furthermore, the feedback phase controls the DDS duty cycle and intracavity comb-line power distribution, while the increase of the pump power improves the estimated pump-to-comb output conversion efficiency.
ER -