Results 241 to 250 of about 16,536 (302)

Microwave cavities for dual resonance atomic clocks

International Conference on Applied Electromagnetics and Communications, 2023
Dual resonance Rubidium atomic clock requires a microwave resonator tuned to the frequency of the hyperfine transition of the Rubidium 87 isotope. The vapor cell containing the Rubidium atoms is placed within this resonator.
Anja K. Skrivervik, Yuanyan Su, M. Violetti   +2 more
semanticscholar   +1 more source

Pulsed optically pumped rubidium atomic clock with optical detection

2008 Conference on Precision Electromagnetic Measurements Digest, 2008
We describe the ongoing work on a 87Rb vapor-cell atomic clock using pulsed optical pumping with an optical detection technique. In order to eliminate the light shifts and to increase the stability of vapor-cell atomic clock, pulsed optical pumping technique has been used.
I. H. Choi, Y.-H. Park, S. H. Lee, J. K. Lee, T. Y. Kwon, S. E. Park   +5 more
openaire   +1 more source

Research on frequency stability and anomaly analysis and detection of rubidium atomic clocks

Journal of Instrumentation
The rubidium atomic clock serves as the core equipment in satellite navigation, directly influencing the timing and positioning accuracy of the satellite navigation system.
Xinyue Li, Zihao Huang, Gang Ming, Xiaolong Zhu, Zhiming Zhan   +4 more
semanticscholar   +1 more source

Initial Tests of a Rubidium Space Cold Atom Clock

Chinese Physics Letters, 2016
We report the initial test results of a rubidium (87Rb) space cold atom clock (SCAC). The space-qualified 87Rb SCAC is composed of the physical package, the optical bench, the microwave synthesizer and the control electronics. After the system is integrated, about 108 87Rb cold atoms are captured by magneto-optical trap.
Lin Li, Qiu-Zhi Qu, Bin Wang, Tang Li, Jian-Bo Zhao, Jing-Wei Ji, Wei Ren, Xin Zhao, Mei-Feng Ye, Yuan-Yuan Yao, De-Sheng Lü, Liang Liu   +11 more
openaire   +1 more source

Modeling the Influence of Magnetic Field on the Parameters of Onboard Rubidium Atomic Clocks Shield

2024 International Conference on Electrical Engineering and Photonics (EExPolytech)
The paper presents the results of modeling the effect of an additional magnetizing field on the parameters of the shield of an onboard rubidium atomic clock. On a laboratory setup, under conditions of the effect of a rotating magnetic field on the clock,
Maria Sergeeva, Sergey Ermak, Natalia Riabogina, Vladimir Semenov, Olga Ermak   +4 more
semanticscholar   +1 more source

An ultra-miniature rubidium atomic clock compatible with OCXO

2012 European Frequency and Time Forum, 2012
This paper shows a traditional Rubidium atomic clock - E10-MRX. The incorporated lamp and ultra-miniature waveguide cavity introduced in the physics package is the main means to reduce the volume of the clock; the electronics consisting of 6.8GHz direct synthesizer and digital servo system is to enhance the automatic functions which ensure large scale ...
Thomas Cao, Clive Green, Cosmo Little
openaire   +1 more source

GaN laser diodes for quantum sensing, optical atomic clocks, precision metrology, and quantum computing

Defense + Commercial Sensing, 2023
Quantum technologies containing key GaN laser components will enable a new generation of precision sensors, optical atomic clocks and secure communication systems for many applications such as next generation navigation, gravity mapping and timing since ...
S. Najda, P. Perlin, T. Suski, S. Stanczyk, A. Kafar, M. Leszczynski, D. Schiavon, T. Slight, S. Gwyn, S. Watson, A. Kelly, M. Knapp, M. Haji   +12 more
semanticscholar   +1 more source

Highly reliable optical system for a rubidium space cold atom clock

Applied Optics, 2016
We describe a highly reliable optical system designed for a rubidium space cold atom clock (SCAC), presenting its design, key technologies, and optical components. All of the optical and electronic components are integrated onto an optimized two-sided 300  mm×290  mm×30  mm optical bench.
Wei, Ren, Yanguang, Sun, Bin, Wang, Wenbing, Xia, Qiuzhi, Qu, Jingfeng, Xiang, Zuoren, Dong, Desheng, Lü, Liang, Liu   +8 more
openaire   +2 more sources

Evaluation of New Solid Rubidium Source Using Atomic Clock Stabilization Loop

2021 21st International Conference on Solid-State Sensors, Actuators and Microsystems (Transducers), 2021
We synthesized and evaluated rubidium azide as a new solid alkali metal source for microfabricated atomic clocks. A MEMS-based gas cell was filled with Rb as the alkali metal source for activation and a buffer gas (N 2 or Ar), and the frequency stability was evaluated by incorporating the cell into a feedback loop of the atomic clock.
Motoaki Hara, Yuichiro Yano, Masaya Toda, Takahito Ono, Tetsuya Ido   +4 more
openaire   +1 more source

High-Precision Digital Temperature Control Method for Rubidium Atomic Clocks

Journal of Electronics and Information Science
: Rubidium atomic clocks’ frequency stability and accuracy are highly sensitive to lamp and cavity temperature fluctuations. To address limitations of conventional analog control and digital PID control, this study proposes a high-precision digital ...
Wang Xin, Shiguang Li, Zhigao Chen
semanticscholar   +1 more source