Integrated, reliable laser system for an 87Rb cold atom fountain clock

被引：3

作者：

Zhang, Zhen ^{[1
,2
,3
]}

Xiang, Jing-Feng ^{[4
]}

Xu, Bin ^{[4
]}

Feng, Pan ^{[4
]}

Sun, Guang-Wei ^{[4
]}

Meng, Yi-Ming ^{[1
,2
,3
]}

Deng, Si-Min-Da ^{[1
,2
,3
]}

Ren, Wei ^{[4
]}

Wan, Jin-Yin ^{[4
]}

Lu, De-Sheng ^{[1
,2
,4
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Ctr Cold Atom Phys, Shanghai 201800, Peoples R China

[2] Chinese Acad Sci, Key Lab Quantum Opt, Shanghai 201800, Peoples R China

[3] Univ Chinese Acad Sci, Coll Mat Sci & Optoelect Technol, Beijing 100049, Peoples R China

[4] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Aerosp Laser Engn Dept, Shanghai 201800, Peoples R China

来源：

CHINESE PHYSICS B | 2023年 / 32卷 / 01期

关键词：

cold atoms; laser system; atomic fountain clock; reliability; ACCURACY;

D O I：

10.1088/1674-1056/ac9e95

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We designed, assembled, and tested a reliable laser system for Rb-87 cold atom fountain clocks. The laser system is divided into four modules according to function, which are convenient for installing, adjusting, maintaining, and replacing of the modules. In each functional module, all optical components are fixed on a baseplate with glue and screws, ensuring the system's structural stability. Mechanical stability was verified in a 6.11g RMS randomvibration test, where the change in output power before and after vibration was less than 5%. Thermal stability was realized by optimizing of the structure and appropriate selection of component materials of the modules through thermal simulation. In the laser splitting and output module, the change in laser power was less than 20% for each fiber in thermal cycles from 5 degrees C to 43 degrees C. Finally, the functionality of the laser system was verified for a rubidium fountain clock.

引用

页数：6

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