Light, science & applications
1-MHz linewidth VCSEL enabled by monolithically integrated passive cavity for high-stability chip-scale atomic clocks.
Zhiting Tang, Chuanlin Li, Xuhao Zhang, Wuyang Ren, Kai Shen, Chuang Li, Qingsong Bai, Jin Li, Aobo Ren, Hao Wang, Xiaorong Luo, Hongxing Xu, Jiang Wu
Published: 202610.1038/s41377-026-02192-x
Abstract
Narrow-linewidth vertical-cavity surface-emitting lasers (VCSELs) are key enablers for chip-scale atomic clocks and quantum sensors, yet conventional designs suffer from short cavity lengths and excess spontaneous emission, resulting in broad linewid…
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