Integrated high-Q cascaded Fabry–Perot resonators based on lithium niobate Sagnac loop reflectors
We demonstrated an integrated high-Q cascaded Fabry-Perot (FP) resonator on lithium niobate on insulator (LNOI) implemented by multi-Sagnac loop reflectors, which was fabricated by femtosecond laser photolithography-assisted chemo-mechanical polishing (CMP). Compared with the resonator that comprised only two Sagnac loop reflectors (SLRs), there is a significant Q factor enhancement in the cascaded resonator formed by multi-SLRs. The loaded Q factor of the cascaded resonator was measured to be 1.16 × 10<sup>6</sup>, a five-fold improvement compared to the state of the art on the same material platform.
Authors
- Qifeng Hou
- Guanghui Zhao (ORCID: https://orcid.org/0000-0003-1049-8650)
- Jianglin Guan (ORCID: https://orcid.org/0000-0002-5272-8832)
- Jintian Lin (ORCID: https://orcid.org/0000-0002-3783-7010)
- Ya Cheng (ORCID: https://orcid.org/0000-0001-8269-5907)
- Xinzhi Zheng
- Lingling Qiao
- Qian Qiao (ORCID: https://orcid.org/0009-0002-9765-7529)
- Xiaoguang Luo (ORCID: https://orcid.org/0000-0001-6813-6981)
- Chuntao Li (ORCID: https://orcid.org/0000-0001-9726-8393)
- Minghui Li (ORCID: https://orcid.org/0000-0003-2974-353X)
- Yingnuo Qiu
- Renhong Gao (ORCID: https://orcid.org/0000-0003-1581-0033)
- Min Wang (ORCID: https://orcid.org/0000-0002-9072-8331)
Institutions
- University of Science and Technology of China (CN)
- Chinese Academy of Sciences (CN)
- Shandong Normal University (CN)
- ShanghaiTech University (CN)
- Hefei University (CN)
- Shanxi University of Traditional Chinese Medicine (CN)
- University of Chinese Academy of Sciences (CN)
- East China Normal University (CN)
Publication Details
- Journal
- Optics Letters
- Published
- 2025-02-24
- DOI
- https://doi.org/10.1364/ol.553883
- Citations
- 2
- Primary Topic
- Photorefractive and Nonlinear Optics
- Type
- article
- Field-Weighted Citation Impact
- 2.49
Funders
- National Natural Science Foundation of China
- Science and Technology Commission of Shanghai Municipality
- National Postdoctoral Program for Innovative Talents
- National Key Research and Development Program of China