Optical resonance and chaos control in a Reuleaux-triangle microcavity  

作　　者：Jinhao Fei Xiaobei Zhang Qi Zhang Yong Yang Zijie Wang Zong Cao Fang Zhang Chuanlu Deng Yi Huang Tingyun Wang 费金浩;张小贝;张琦;杨勇;王梓杰;曹棕;张芳;邓传鲁;黄怿;王廷云(Key Laboratory of Specialty Fiber Optics and Optical Access Networks,Joint International Research Laboratory of Specialty Fiber Optics and Advanced Communication,Shanghai Institute for Advanced Communication and Data Science,School of Communication and Information Engineering,Shanghai University,Shanghai 200444,China)

机构地区：[1]Key Laboratory of Specialty Fiber Optics and Optical Access Networks,Joint International Research Laboratory of Specialty Fiber Optics and Advanced Communication,Shanghai Institute for Advanced Communication and Data Science,School of Communication and Information Engineering,Shanghai University,Shanghai 200444,China

出　　处：《Chinese Optics Letters》2024年第11期54-60,共7页中国光学快报(英文版)

基　　金：supported by the National Natural Science Foundation of China (Nos.62205192 and 62022053);the Shanghai Science and Technology Plan (No.22ZR142300);the Science and Technology Commission of Shanghai Municipality (Nos.22010500100 and 22ZR1424800);the Open Project of Wuhan National Laboratory for Optoelectronics (No.2021WNLOKF002);the 111 Project (No.D20031)。

摘　　要：The mode selection ability of whispering gallery mode(WGM) microcavities is crucial in applications such as sensors, lasers,and nonlinear optics. Though various shapes of microcavities have been studied for mode suppression, single-mode operation is still difficult to realize. Here, we demonstrate a Reuleaux-triangle resonator(RTR) with corner-cuts, which can reconstruct phase space to realize single-mode control. According to classical ray dynamics, the boundary of the RTR is optimized to obtain the stable 9-period islands with the consideration of suppression of standing waves and strong light scattering. The single-mode characteristic of the RTR is experimentally verified under the optimal coupling position, with a Q factor of 1.1 × 10^(4). Our investigation reveals a new thread for mode suppression with potential in the fields of single-mode lasers and nonlinear optics.

关 键 词：deformed microcavity optical chaos mode suppression. 

分 类 号：TN2[电子电信—物理电子学]