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arXiv · 2212.10892

Monolithically integrated high-power narrow-bandwidth microdisk laser

Jianglin Guan·Chuntao Li·Renhong Gao·Haisu Zhang·Jiantian Lin·Minghui Li·Min Wang·Lingling Qiao·Li Deng·Ya Cheng
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Abstract

Integrated on-chip microdisk lasers have attracted great attention as a light source of compact size, low lasing threshold and narrow bandwidth. However, challenges remain unresolved in terms of single mode operation at high output power while maintaining the ultra-narrow bandwidth. In this work, we demonstrate monolithically integrated on-chip single-frequency microdisk lasers coupled with bus-waveguides fabricated by photolithography assisted chemo-mechanical etching. Owing to the high-Q factor of a polygon whispering gallery mode formed in the microdisk and long cavity lengths (e.g., 409 um and 1 mm), a microdisk laser with a narrow linewidth of 0.11 MHz and a maximum output power of 62.1 uW has been achieved at room temperature.

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Jianglin Guan, Chuntao Li, Renhong Gao, Haisu Zhang, Jiantian Lin, Minghui Li, Min Wang, Lingling Qiao, Li Deng, Ya Cheng. 2022-12-21. Monolithically integrated high-power narrow-bandwidth microdisk laser. https://arxiv.org/abs/2212.10892

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