Polygon Coherent Modes in a Weakly Perturbed Whispering Gallery Microresonator for Efficient Second Harmonic, Optomechanical, and Frequency Comb Generations

被引：32

作者：

Fang, Zhiwei ^{[1
,2
]}

Haque, Sanaul ^{[3
]}

Farajollahi, Saeed ^{[3
]}

Luo, Haipeng ^{[3
]}

Lin, Jintian ^{[4
]}

Wu, Rongbo ^{[4
]}

Zhang, Jianhao ^{[4
]}

Wang, Zhe ^{[4
]}

Wang, Min ^{[1
,2
]}

Cheng, Ya ^{[1
,2
,4
,5
]}

Lu, Tao ^{[3
]}

机构：

[1] East China Normal Univ, State Key Lab Precis Spect, Shanghai 200062, Peoples R China

[2] East China Normal Univ, Sch Phys & Elect Sci, XXL Extreme Optoelectromech Lab, Shanghai 200241, Peoples R China

[3] Univ Victoria, Dept Elect & Comp Engn, Victoria, BC V8P 5C2, Canada

[4] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, State Key Lab High Field Laser Phys, Shanghai 201800, Peoples R China

[5] Shanxi Univ, Collaborat Innovat Ctr Extreme Opt, Taiyuan 030006, Shanxi, Peoples R China

来源：

PHYSICAL REVIEW LETTERS | 2020年 / 125卷 / 17期

基金：

中国国家自然科学基金; 加拿大自然科学与工程研究理事会; 国家重点研发计划;

关键词：

Microresonators;

D O I：

10.1103/PhysRevLett.125.173901

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We observe high optical quality factor (Q) polygonal and star coherent optical modes in a lithium niobate microdisk. In contrast to the previous polygon modes achieved by deformed microcavities at lower mechanical and optical Q, we adopt weak perturbation from a tapered fiber for the polygon mode formation. The resulting high intracavity optical power of the polygon modes triggers second harmonic generation at high efficiency. With the combined advantages of a high mechanical Q cavity, we observe optomechanical oscillation in polygon modes for the first time. Finally, we observe frequency microcomb generation from the polygon modes with an ultrastable taper-on-disk coupling mechanism.

引用

页数：6