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arXiv · 2505.00352

Hybrid-integrated dark-pulse microcombs towards visible light spectrum

Jinbao Long·Xiaoying Yan·Sanli Huang·Wei Sun·Hao Tan·Zeying Zhong·Zhenyuan Shang·Jiahao Sun·Baoqi Shi·Chen Shen·Yi-Han Luo·Junqiu Liu
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Abstract

Leveraging hybrid integration, we demonstrate dark-pulse formation at 780-nm wavelength band in integrated Si$_3$N$_4$ microresonators driven by high-power AlGaAs-based chip-scale lasers. The device outputs coherent frequency combs with electronically detectable repetition rates down to 20 GHz, paving a route to efficient and compact atom-chip interfaces for spectroscopy, metrology and sensing.

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Jinbao Long, Xiaoying Yan, Sanli Huang, Wei Sun, Hao Tan, Zeying Zhong, Zhenyuan Shang, Jiahao Sun, Baoqi Shi, Chen Shen, Yi-Han Luo, Junqiu Liu. 2025-05-01. Hybrid-integrated dark-pulse microcombs towards visible light spectrum. https://arxiv.org/abs/2505.00352

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