研究团队的研究方向包括：铌酸锂基集成光子技术、非线性光学和超快激光微纳加工技术。欢迎对此感兴趣、学习刻苦、学风扎实的同学加入团队，一起推动新一代光集成器件、芯片的发展。

主持了国家优青项目、上海市原创探索项目和中国科学院青促会项目等项目，参与了国家基金委重点项目（上海光机所部分负责人）

（1） 铌酸锂薄膜光子学（国家优青项目）, 负责人, 国家任务, 2022-01--2024-12

（2） 中科院青促会会员（人才类）, 负责人, 中国科学院计划, 2020-01--2023-12

（3） 基于弱微扰光学微腔多边形模式的非线性光学研究（上海市原创探索项目）, 负责人, 地方任务, 2023-04--2026-03

（4） 飞秒激光直写铌酸锂光量子集成芯片（面上项目）, 负责人, 国家任务, 2019-01--2022-12

（5） 利用飞秒激光直写制备高品质晶体微腔及非线性光学研究（青年基金）, 负责人, 国家任务, 2016-01--2018-12

     主要取得以下进展：

1. 发展飞秒激光烧蚀辅助的聚焦离子束刻蚀工艺，制备了首个品质因子超过10(5)的片上铌酸锂薄膜光学微腔；

2. 合作发展极低损耗、可大面积加工的飞秒激光光刻辅助化学机械刻蚀技术，获得了超高品质因子（~10(8))的铌酸锂光学微腔以及极低损耗（≤ 2.7 dB/m）的米级长度光波导延时线等光集成器件；

3. 合作揭示新型的微纳非线性光学相位匹配机制，取得当时片上铌酸锂微腔二次谐波和三次谐波的最高转换效率；

4. 通过调控弱微扰铌酸锂微腔的空间模式分布和色散，相干合成高品质的多边形模式，抑制多余的微腔模式，实现窄线宽单频微激光、双波长激光微波源与微腔光频梳产生。

代表性论文：

1. 1. B. Fu, R. Gao, N. Yao, H. Zhang, C. Li, J. Lin*, M. Wang, L. Qiao, and Y. Cheng*, "Generation of Kerr soliton microcomb in a normally dispersed lithium niobate microdisk resonator by mode trimming," arXiv preprint arXiv:2309,00778 (2023).
2. 2. R. Gao, B. Fu, N. Yao, J. Guan, H. Zhang, J. Lin*, C. Li, M. Wang, L. Qiao, and Y. Cheng*, "Electro-optically tunable low phase-noise microwave synthesizer in an active lithium niobate microdisk," Laser & Photonics Reviews 17, 2200903 (2023)；
3. 3. R. Gao, N. Yao, J. Guan, L. Deng, J. Lin*, M. Wang, L. Qiao, W. Fang, and Y. Cheng*, "Lithium niobate microring with ultra-high Q factor above 108," Chinese Optics Letters 20, 011902 (2022) (2022 Chinese Optics Letters Editor-in-Chief Choice Award)(学术精要数据库高被引论文)；
4. 4. J. Lin#, S. Farajollahi#, Z. Fang#, N. Yao, R. Gao, J. Guan, L. Deng, T. Lu*, M. Wang, H. Zhang, W. Fang*, L. Qiao, and Y. Cheng*, "Electro-optic tuning of a single-frequency ultranarrow linewidth microdisk laser," Advanced Photonics 4, 036001 (2022);
5. 5. J. Hou#, J. Lin#, J. Zhu, G. Zhao, Y. Chen, F. Zhang, Y. Zheng, X. Chen, Y. Cheng*, L. Ge, and W. Wan*, "Self-induced transparency in a perfectly absorbing chiral second-harmonic generator," PhotoniX 3, 22 (2022);
6. 6. R. Gao#, H. Zhang#, F. Bo, W. Fang, Z. Hao, N. Yao, J. Lin*, J. Guan, L. Deng, M. Wang, L. Qiao, and Y. Cheng*, "Broadband highly efficient nonlinear optical processes in on-chip integrated lithium niobate microdisk resonators of Q-factor above 108," New Journal OF Physics 23, 123027 (2021);
7. 7. J. Zhou, R. Gao, J. Lin*, M. Wang, W. Chu, W. Li, D. Yin, L. Deng, Z. Fang, J. Zhang, R. Wu, and Y. Cheng*, "Electro-Optically Switchable Optical True Delay Lines of Meter-Scale Lengths Fabricated on Lithium Niobate on Insulator Using Photolithography Assisted Chemo-Mechanical Etching," Chinese Physics Letters 37, 084201 (2020) (Express Letter) (2023 IOP Publishing Top Cited Paper Award);
8. 8. J. Lin, F. Bo*, Y. Cheng*, and J. Xu*, "Advances in on-chip photonic devices based on lithium niobate on insulator," Photonics Research 8, 1910 (2020) (ESI Highly Cited Paper);
9. 9. J. Lin#, N. Yao#, Z. Hao, J. Zhang, W. Mao, M. Wang, W. Chu, R. Wu, Z. Fang, L. Qiao, W. Fang*, F. Bo*, and Y. Cheng*, "Broadband Quasi-Phase-Matched Harmonic Generation in an On-Chip Monocrystalline Lithium Niobate Microdisk Resonator," Physical Review Letters 122, 173903 (2019) (2019-2021 ESI Highly Cited Paper);
10. 10. R. Wu#, J. Zhang#, N. Yao, W. Fang, L. Qiao, Z. Chai, J. Lin*, and Y. Cheng*, "Lithium niobate micro-disk resonators of quality factors above 10(7)," Optics Letters 43, 4116 (2018);
11. 11. J. Lin, Y. Xu, J. Ni, M. Wang, Z. Fang, L. Qiao, W. Fang*, and Y. Cheng*, "Phase-Matched Second-Harmonic Generation in an On-Chip LiNbO3 Microresonator," Physical Review Applied 6, 014002 (2016);
12. 12. J. Lin, Y. Xu, Z. Fang, M. Wang, J. Song, N. Wang, L. Qiao, W. Fang*, and Y. Cheng*, "Fabrication of high-Q lithium niobate microresonators using femtosecond laser micromachining," Scientific Reports 5, 8072 (2015) (2016-2020 ESI Highly Cited Paper);
13. 13. J. Lin, Y. Xu, Z. Fang, M. Wang, N. Wang, L. Qiao, W. Fang*, and Y. Cheng*, "Second harmonic generation in a high-Q lithium niobate microresonator fabricated by femtosecond laser micromachining," Science China-Physics Mechanics & Astronomy 58, 114209 (2015) (Science China Physics, Mechanics & Astronomy 2017年度优秀论文奖).