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Evaluation of New Solid Rubidium Source Using Atomic Clock Stabilization Loop
2021 21st International Conference on Solid-State Sensors, Actuators and Microsystems (Transducers), 2021We 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 +4 more
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The rubidium atomic clock and basic research
Physics Today, 2007The vapor-cell atomic clock finds application today in the global positioning system and telecommunications. To improve and miniaturize the humble device for future applications will require a deeper understanding of atomic and chemical physics.
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Microwave interrogation cavity for the rubidium space cold atom clock
Chinese Physics B, 2016The performance of space cold atom clocks (SCACs) should be improved thanks to the microgravity environment in space. The microwave interrogation cavity is a key element in a SCAC. In this paper, we develop a microwave interrogation cavity especially for the rubidium SCAC.
Wei Ren +4 more
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A Compact Laser System for the Pulsed Optically Pumped Rubidium Cell Atomic Clock
IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 2022We describe the design and implementation of a compact laser system for the pulsed optically pumped (POP) rubidium (Rb) cell atomic clock. The laser system includes packaged optics for sub-Doppler absorption, acousto-optic modulation and light beam expansion, and dedicated electronics for laser diode reliable single-mode operation and laser frequency ...
Zhijian Yu +5 more
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Selected Studies on High Performance Laser-Pumped Rubidium Atomic Clocks
2018 IEEE International Frequency Control Symposium (IFCS), 2018In this communication, we report on our recent investigations related to the development of a compact high performance laser-pumped vapor cell Rubidium atomic clock. These studies include the evaluation of alternative technologies for key components of the clock such as the laser source and the microwave cavity.
C. Affolderbach +6 more
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Progress of the Portable Rubidium Atomic Fountain Clock in SIOM
2013A portable 87Rb atomic fountain clock has been constructed and researched in Shanghai Institute of Optics and Fine Mechanics, and some improvements have been made recently. So far, comparison data with the H-maser shows that, the Allan deviation of the relative frequency stability of this fountain clock is 5.0 × 10−13τ−1/2, which reaches 2.6 × 10−15 at
Yuanbo Du +3 more
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The Compact Laser System for Pulsed Optically Pumped Rubidium Atomic Clock
2019 Joint Conference of the IEEE International Frequency Control Symposium and European Frequency and Time Forum (EFTF/IFC), 2019In this paper, we propose an implementation of the compact laser system for POP rubidium atomic clock. The compact system consists of the miniaturized optical platform and the laser driving and control electronic module, and the two parts with the same length and width are stacked together to ensure the output laser beam is exactly incident to rubidium
Zhijian Yu +6 more
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Microwave cavity design for an optically-pumped rubidium atomic beam clock
2013 Joint European Frequency and Time Forum & International Frequency Control Symposium (EFTF/IFC), 2013We design a microwave cavity for our developing compact optically-pumped rubidium beam frequency standard. For clock transition of 87Rb (F=2, mF=0 to F=1, mF=0), the central frequency is 6.8347GHz. The cavity made of WR90 waveguide in previous cesium beam clocks no longer works.
Chang Liu, Yanhui Wang
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Rubidium Atomic Clock with Improved Metrological Characteristics for Satellite Communication System
2017One of the essential elements of satellite communication system is an atomic clock. The proper operation of this system depends on the performance of atomic clock. In this paper one of the directions of modernization of the rubidium atomic clocks is considered. A new design of the frequency synthesis circuitry is presented.
Alexander A. Petrov +3 more
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