Optomagnonically tunable whispering gallery cavity laser wavelength conversion

doi:10.1088/1674-1056/ac7862

中国物理B ›› 2023, Vol. 32 ›› Issue (2): 24206-024206.doi: 10.1088/1674-1056/ac7862

Optomagnonically tunable whispering gallery cavity laser wavelength conversion

Yining Zhu(朱奕宁)¹, Zixu Zhu(朱子虚)², Anbang Pei(裴安邦)², and Yong-Pan Gao(高永潘)^3,†

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

收稿日期:2022-04-03 修回日期:2022-06-05 接受日期:2022-06-14 出版日期:2023-01-10 发布日期:2023-01-10
通讯作者: Yong-Pan Gao E-mail:gaoyongpan@bupt.edu.cn
基金资助:
Project supported by the National Natural Science Foundation of China (Grant No. 62101057).

Optomagnonically tunable whispering gallery cavity laser wavelength conversion

Yining Zhu(朱奕宁)¹, Zixu Zhu(朱子虚)², Anbang Pei(裴安邦)², and Yong-Pan Gao(高永潘)^3,†

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

Received:2022-04-03 Revised:2022-06-05 Accepted:2022-06-14 Online:2023-01-10 Published:2023-01-10
Contact: Yong-Pan Gao E-mail:gaoyongpan@bupt.edu.cn
Supported by:
Project supported by the National Natural Science Foundation of China (Grant No. 62101057).

摘要/Abstract

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

Abstract: 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.

Key words: cavity optomagnonics, YIG sphere, laser modulation

中图分类号: (Microcavity and microdisk lasers)

42.55.Sa

42.65.Ky (Frequency conversion; harmonic generation, including higher-order harmonic generation) 42.82.Fv (Hybrid systems)

Yining Zhu(朱奕宁), Zixu Zhu(朱子虚), Anbang Pei(裴安邦), and Yong-Pan Gao(高永潘). Optomagnonically tunable whispering gallery cavity laser wavelength conversion[J]. 中国物理B, 2023, 32(2): 24206-024206.

Yining Zhu(朱奕宁), Zixu Zhu(朱子虚), Anbang Pei(裴安邦), and Yong-Pan Gao(高永潘). Optomagnonically tunable whispering gallery cavity laser wavelength conversion[J]. Chin. Phys. B, 2023, 32(2): 24206-024206.

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Optomagnonically tunable whispering gallery cavity laser wavelength conversion

Optomagnonically tunable whispering gallery cavity laser wavelength conversion

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