A Low Noise and Computer Controllable Oscillator for CPT Atomic Clock

Jian Xu; Ting Lin; Zhi Yin Gan

doi:10.4028/www.scientific.net/AMM.433-435.1423

Paper Titles

Research and Development of Multi-Regional Monitoring Integration Technology Based on SIP Protocol
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Improving Program Performance via Auto-Vectorization of Loops with Conditional Statements with GCC Compiler Setting
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Synchronous Information Transmission in the Embedded Equipment Management Information System
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An FPGA Based Color Bar Signal Generator for PAL Standard
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A Low Noise and Computer Controllable Oscillator for CPT Atomic Clock
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Design and Implementation of Image Acquisition and Processing for TFDS
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Simulation of Electrodes Configuration that Used in a MALDI-TOF-MS System
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The Design of the Intelligent Health Information Collection Terminal which is Based on the Embedded Technology
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 433-435A Low Noise and Computer Controllable Oscillator...

A Low Noise and Computer Controllable Oscillator for CPT Atomic Clock

Abstract:

This paper presents an digital microwave oscillator which employs a phase lock loop (PLL) chip and a direct digital synthesizer (DDS) chips to realize a pure frequency at 3.417GHz (half of the ⁸⁷Rb atom ground-state hyperfine transition frequency) for the coherent population trapping (CPT) atomic clock application. And at this frequency, the oscillator demonstrates low noise (lower than-50dBc/Hz@100Hz and lower than-55dBc/Hz@1kHz) and purity. Moreover, based on the communication between a computer and the MCU, this oscillator could be completely controlled by self-developed user interface.

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Periodical:

Applied Mechanics and Materials (Volumes 433-435)

Pages:

1423-1426

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.433-435.1423

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Cite this paper

Online since:

October 2013

Authors:

Jian Xu*, Ting Lin, Zhi Yin Gan

Keywords:

Atomic Clock, Coherent Population Trapping, Direct Digital Synthesizer, Low Noise, Oscillator, Phase Lock Loop

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