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journal article·2019-04-01Open access

Low phase noise microwave frequency synthesizer for cold atom clock

Mingyuan Yu, Yaning Wang, Jinyin Wan, Xin Wang, Xinchuan Ouyang, Ling Xiao, Tang Li, Huadong Cheng, Liang Liu

AIP Advances· Volume 9· Issue 4
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Source abstract

Abstract

We present a low phase noise microwave frequency synthesizer for the integrating sphere cold atom clock. The synthesizer is based on an ultralow-phase-noise oven-controlled crystal oscillator and employs a phase-locking technique. The absolute phase noise performance of the 6834 MHz signal was measured to be −60 and −120 dBc/Hz at offset frequencies of 1 Hz and 10 kHz, respectively. For the new scheme, the direct digital synthesizer is used to tune the clock output. The frequency tuning resolution was improved to 3.4 × 10−15. This scheme for the microwave frequency synthesizer can also be used in other precision measurements.
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Research context

OpenAlex topics: Advanced Frequency and Time Standards · Atomic and Subatomic Physics Research · Cold Atom Physics and Bose-Einstein Condensates

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Affiliations

Key Laboratory of Quantum Optics and Center of Cold Atom Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences 1 , Shanghai 201800, China

Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences 2 , Beijing 100049, China

National University of Defense Technology, Interdisciplinary Center for Quantum Information 3 , Changsha, Hunan 410073, China

Funding

National Natural Science Foundation of China · Youth Innovation Promotion Association of the Chinese Academy of Sciences

References (24)

Show source-provided references
1. Metrologia · 2012 · 49 · 42510.1088/0026-1394/49/4/425 ↗
2. Journal of Applied Physics · 2017 · 121 · 10490310.1063/1.4977955 ↗
3. Review of Scientific Instruments · 2016 · 87
4. Metrologia · 2005 · 42 · S6410.1088/0026-1394/42/3/s08 ↗
5. Physical Review A · 2010 · 82
6. Physical Review A · 2015 · 92
7. IEEE Transactions on Ultrasonics Ferroelectrics and Frequency Control · 1998 · 45 · 88710.1109/58.710548 ↗
8. Applied Physics Letters · 2009 · 94 · 14110510.1063/1.3112574 ↗
9. IEEE Transactions on Ultrasonics Ferroelectrics and Frequency Control · 2017 · 64 · 76110.1109/tuffc.2017.2649044 ↗
10. Review of Scientific Instruments · 2005 · 76
11. Physical Review Letters · 1999 · 82 · 461910.1103/physrevlett.82.4619 ↗
12. Physical Review A · 2009 · 79
13. Review of Scientific Instruments · 2015 · 86 · 09470710.1063/1.4929384 ↗
14. Review of Scientific Instruments · 2014 · 85 · 09470910.1063/1.4896043 ↗
15. IEEE Transactions on Ultrasonics Ferroelectrics and Frequency Control · 2010 · 57 · 8810.1109/tuffc.2010.1383 ↗
16. Chinese Physics B · 2015 · 24
17. Pharao microwave source: A short term frequency stability of 7.10−14 at 1 second
18. Journal of the Optical Society of America B-Optical Physics · 2016 · 33
19. IEEE Transactions on Ultrasonics Ferroelectrics and Frequency Control · 2000 · 47 · 116610.1109/58.869062 ↗
20. An analysis of the output spectrum of direct digital frequency synthesizers in the presence of phase-accumulator truncation
21. 1984
22. AIP Advances · 2018 · 8 · 09531110.1063/1.5042492 ↗
23. Advances in Space Research · 2011 · 47 · 85410.1016/j.asr.2010.12.012 ↗
24. Physical Review A · 2018 · 97