Prompt Frequency Stabilization of Ultra-Stable Laser via Improved Mean Shift Algorithm
文献类型：期刊论文
| 作者 | Fan, Le1,2,3; Jiao, Dongdong1,3; Liu, Jun1,3; Chen, Long1,3; Xu, Guanjun1,3; Zhang, Linbo1,3; Liu, Jie1,3 ; Dong, Ruifang1,2,3; Liu, Tao1,2,3; Zhang, Shougang1,2,3
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| 刊名 | ELECTRONICS
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| 出版日期 | 2022-05-01 |
| 卷号 | 11期号:9页码:10 |
| 关键词 | auto-locking ultra-stable laser mean shift algorithm scanning transmission signal |
| DOI | 10.3390/electronics11091319 |
| 英文摘要 | In many scientific fields, the continuous operation of ultra-stable lasers is crucial for applications. To speed up the frequency stabilization process in case of the occurence of unexpected interruptions, a prompt frequency stabilization approach based on an improved mean shift algorithm is proposed and verified with a homemade laser system. We developed a double-loop feedback controller to steer the laser frequency with fast and slow channels, respectively. In this study, an improved mean shift algorithm is utilized to intelligently search for the transmission signal, which involves adaptively updating the sliding window radius and incorporating a Gaussian kernel function to update the shift vector. The number of lock points on the left and right sides of the central point determines the scanning direction to search for the transmission signal quickly. The laser is intentionally interrupted 306 times within 10,000 s to evaluate the relocking performance. The median auto-locking time of the laser is improved from 16 s to 4 s. By beating with another ultra-stable laser system, the laser frequency instability is measured to be less than 2.1 x 10(-14) and the linewidth is 5 Hz. This work improves the adaptation and relocking ability of the ultra-stable laser in a complex environment. |
| WOS关键词 | OPTICAL CLOCK ; SYSTEM |
| 资助项目 | National Natural Science Foundation of China[11903041] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences[1188000XGJ] ; Young Innovative Talents of the National Time Service Center of the Chinese Academy of Sciences[Y917SC1] |
| WOS研究方向 | Computer Science ; Engineering ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000794816400001 |
| 出版者 | MDPI |
| 资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Young Innovative Talents of the National Time Service Center of the Chinese Academy of Sciences ; Young Innovative Talents of the National Time Service Center of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Young Innovative Talents of the National Time Service Center of the Chinese Academy of Sciences ; Young Innovative Talents of the National Time Service Center of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Young Innovative Talents of the National Time Service Center of the Chinese Academy of Sciences ; Young Innovative Talents of the National Time Service Center of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Young Innovative Talents of the National Time Service Center of the Chinese Academy of Sciences ; Young Innovative Talents of the National Time Service Center of the Chinese Academy of Sciences |
| 源URL | [http://210.72.145.45/handle/361003/13814]  |
| 专题 | 国家授时中心_量子频标研究室 |
| 通讯作者 | Dong, Ruifang; Liu, Tao |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Time & Frequency Stand, Xian 710600, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China 3.Chinese Acad Sci, Natl Time Serv Ctr, Xian 710600, Peoples R China |
| 推荐引用方式 GB/T 7714 | Fan, Le,Jiao, Dongdong,Liu, Jun,et al. Prompt Frequency Stabilization of Ultra-Stable Laser via Improved Mean Shift Algorithm[J]. ELECTRONICS,2022,11(9):10. |
| APA | Fan, Le.,Jiao, Dongdong.,Liu, Jun.,Chen, Long.,Xu, Guanjun.,...&Zhang, Shougang.(2022).Prompt Frequency Stabilization of Ultra-Stable Laser via Improved Mean Shift Algorithm.ELECTRONICS,11(9),10. |
| MLA | Fan, Le,et al."Prompt Frequency Stabilization of Ultra-Stable Laser via Improved Mean Shift Algorithm".ELECTRONICS 11.9(2022):10. |
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来源：国家授时中心
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