Automatic Laser Frequency Stabilization System for Transportable 87Rb Fountain Clock

Jingwei, 吉经纬 Ji; Henan, 程鹤楠 Cheng; Zhen, 张镇 Zhang; Kangkang, 刘亢亢 Liu; Jingfeng, 项静峰 Xiang; Wei, 任伟 Ren; Lin, 李琳 Li; Desheng, 吕德胜 Lü

doi:10.3788/aos202040.2214002

Cited by 7 publications

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Obviously, the smaller the amount of variation ∆v is, the smaller σ f is, indicating better frequency stabilization. Measuring frequency stability requires lasers to beat frequency, and a simple estimation method is used here [29,31]. We can see that through the frequency discrimination sensitivity k f , the relationship between error voltage and frequency can be obtained.…”

Section: Frequency Stability Estimationmentioning

confidence: 99%

Designing an Automatic Frequency Stabilization System for an External Cavity Diode Laser Using a Data Acquisition Card in the LabVIEW Platform

Wu,

Qin,

et al. 2023

Applied Sciences

View full text Add to dashboard Cite

The frequency stability of free-running lasers is susceptible to the influence of environmental factors, which cannot meet the long-term frequency stabilization requirements for atom interferometry precision measurements. To obtain a frequency-stabilized 780 nm laser beam, an automatic frequency stabilization system for an external cavity diode laser (ECDL) based on rubidium (Rb) atomic saturated absorption spectrum was designed using a commercial data acquisition (DAQ) card. The signals acquired by the A/D terminal are processed and analyzed by LabVIEW, which can automatically identify all the locking points and output the piezoelectric ceramic transducer (PZT) scan and digital feedback through the D/A terminal. The experimental results show that the system can lock to six different frequencies separately and realize automatic relocking within 3.5 s after unlocking. The system has a stability of 1.68 × 10−10@1 s and 4.77 × 10−12@1000 s, which meets the laboratory’s requirements for atomic interference experiments.

show abstract

Section: Frequency Stability Estimationmentioning

confidence: 99%

Designing an Automatic Frequency Stabilization System for an External Cavity Diode Laser Using a Data Acquisition Card in the LabVIEW Platform

Wu,

Qin,

et al. 2023

Applied Sciences

View full text Add to dashboard Cite

show abstract

“…Experimental results have shown that the long-term stabilization time of the laser frequency can reach more than one month, the long-term stability of laser frequency relative to the 87 Rb saturated absorption spectrum is about 2.3 × 10 -13 , and the long-term stability of the transportable 87 Rb fountain clock before and after transport is always in at the magnitude of 10 -16 . [18].…”

Section: Research Advancesmentioning

confidence: 99%

The application and development of laser frequency stabilization techniques for atomic clocks

Liu,

Guo,

Liu

et al. 2023

6th Optics Young Scientist Summit (OYSS 2023)

View full text Add to dashboard Cite

Atomic clocks are precise devices that generate time and frequency signals by exploiting the inherent oscillation frequency of atoms. They have broad applications in fields such as aerospace navigation, global positioning, and precision metrology. Laser frequency stabilization techniques are crucial for ensuring the stable operation of atomic clocks, laser frequency stability directly impacts the performance of these clocks. This review presents the working principles, characteristics, and research progress of different laser frequency stabilization techniques, including saturation absorption spectroscopy stabilization, Pound-Drever-Hall technique, and modulation transfer spectroscopy stabilization. Additionally, it provides a perspective on the future advancement of laser frequency stabilization techniques in the atomic clock filed, which integral in the development of high-performance atomic clocks.

show abstract

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

Zhang¹,

Xiang²,

Xu³

et al. 2023

Chinese Phys. B

View full text Add to dashboard Cite

In this paper, we designed, assembled, and tested a reliable laser system for 87Rb cold atom fountain clocks. The laser system is divided into four modules according to function, which are convenient for the 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 random-vibration 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 to 43℃. Finally, the functionality of the laser system was verified for a rubidium fountain clock.

show abstract

Automatic Laser Frequency Stabilization System for Transportable 87Rb Fountain Clock

Cited by 7 publications

References 0 publications

Designing an Automatic Frequency Stabilization System for an External Cavity Diode Laser Using a Data Acquisition Card in the LabVIEW Platform

Designing an Automatic Frequency Stabilization System for an External Cavity Diode Laser Using a Data Acquisition Card in the LabVIEW Platform

The application and development of laser frequency stabilization techniques for atomic clocks

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

Contact Info

Product

Resources

About

Automatic Laser Frequency Stabilization System for Transportable 87Rb Fountain Clock

Cited by 7 publications

References 0 publications

Designing an Automatic Frequency Stabilization System for an External Cavity Diode Laser Using a Data Acquisition Card in the LabVIEW Platform

Designing an Automatic Frequency Stabilization System for an External Cavity Diode Laser Using a Data Acquisition Card in the LabVIEW Platform

The application and development of laser frequency stabilization techniques for atomic clocks

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

Contact Info

Product

Resources

About

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