Optomagnonically tunable whispering gallery cavity laser wavelength conversion  

作　　者：朱奕宁 朱子虚 裴安邦 高永潘 Yining Zhu;Zixu Zhu;Anbang Pei;Yong-Pan Gao(International School,Beijing University of Posts and Telecommunications,Beijing 100876,China;School of Information and Communication Engineering,Beijing University of Posts and Telecommunications,Beijing 100876,China;School of Electronic Engineering,Beijing University of Posts and Telecommunications,Beijing 100876,China)

机构地区：[1]International School,Beijing University of Posts and Telecommunications,Beijing 100876,China [2]School of Information and Communication Engineering,Beijing University of Posts and Telecommunications,Beijing 100876,China [3]School of Electronic Engineering,Beijing University of Posts and Telecommunications,Beijing 100876,China

出　　处：《Chinese Physics B》2023年第2期293-297,共5页中国物理B（英文版）

基　　金：supported by the National Natural Science Foundation of China (Grant No. 62101057)。

摘　　要：We achieve laser wavelength conversion in an optomagnonical whispering gallery cavity by adjusting the strength of the applied static magnetic field. Numerical simulations are carried out on a yttrium iron garnet(YIG) sphere under different cavity quality factors or coupling strength. It is found that a high cavity quality factor will not always mean a high cavity excitation field for Gaussian lasers with finite linewidth. On state of the art, the high cavity quality factor will always mean the higher lightwave conversion rate. In addition, we also find that increasing the mode coupling strength is beneficial to the conversion of the laser. Our study provides new insights into generation of highly precise tunable coherent light.

关 键 词：cavity optomagnonics YIG sphere laser modulation 

分 类 号：TN248[电子电信—物理电子学]