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PreprintarXiv licencearXiv

Power-Bandwidth Scaling of Resonantly Coupled Soliton Microcombs

  • Xinrui Luo
  • Kaixuan Zhu
  • Yuanlei Wang
  • Yinke Cheng
  • Haoyang Luo
  • Junqi Wang
  • Yiwen Yang
  • Zhenyu Xie
  • Bei-Bei Li
  • Qihuang Gong
  • Qi-Fan Yang
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Abstract

A soliton microcomb requires increasing pump power as its optical bandwidth is broadened. Resonant pumping through an auxiliary microresonator can reduce the power required to sustain a soliton, but simultaneously increases the power required for soliton formation. We show that this competition leads to optimal inter-resonator coupling, and the predicted minimum input pump power scales as the two-thirds power of the comb bandwidth, in contrast to the quadratic scaling under direct pumping. Experiments support the opposing power trends, providing a design rule for power-efficient, ultra-broadband soliton microcombs.

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Cite

BibTeXRIS
BibTeX
@misc{luo2026powerbandwidth,
  title = {{Power-Bandwidth Scaling of Resonantly Coupled Soliton Microcombs}},
  author = {Xinrui Luo and Kaixuan Zhu and Yuanlei Wang and Yinke Cheng and Haoyang Luo and Junqi Wang and Yiwen Yang and Zhenyu Xie and Bei-Bei Li and Qihuang Gong and Qi-Fan Yang},
  howpublished = {arXiv},
  year = {2026},
  month = sep,
  doi = {10.48550/arxiv.2609.19941},
  eprint = {2609.19941},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2609.19941},
}
RIS
TY  - UNPB
TI  - Power-Bandwidth Scaling of Resonantly Coupled Soliton Microcombs
AU  - Xinrui Luo
AU  - Kaixuan Zhu
AU  - Yuanlei Wang
AU  - Yinke Cheng
AU  - Haoyang Luo
AU  - Junqi Wang
AU  - Yiwen Yang
AU  - Zhenyu Xie
AU  - Bei-Bei Li
AU  - Qihuang Gong
AU  - Qi-Fan Yang
PY  - 2026
DA  - 2026/09/17
PB  - arXiv
DO  - 10.48550/arxiv.2609.19941
UR  - https://arxiv.org/abs/2609.19941
AB  - A soliton microcomb requires increasing pump power as its optical bandwidth is broadened. Resonant pumping through an auxiliary microresonator can reduce the power required to sustain a soliton, but simultaneously increases the power required for soliton formation. We show that this competition leads to optimal inter-resonator coupling, and the predicted minimum input pump power scales as the two-thirds power of the comb bandwidth, in contrast to the quadratic scaling under direct pumping. Experiments support the opposing power trends, providing a design rule for power-efficient, ultra-broadband soliton microcombs.
ER  -