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Updated: Jun 11, 2026
11:21
Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving
Published on: March 30, 2017
Precise phase synchronization of a cryogenic microwave oscillator.
E N Ivanov1, D Mouneyrac, J-M Le Floch
1School of Physics, The University of Western Australia, 35 Stirling Hwy., Crawley 6009, Australia.
The Review of Scientific Instruments
|July 2, 2010
Summary
We achieved precise phase synchronization for microwave oscillators using cooled sapphire resonators. This breakthrough allows for measuring minute phase fluctuations in next-generation ultralow phase noise oscillators.
Area of Science:
- Physics
- Electrical Engineering
- Materials Science
Background:
- Accurate phase synchronization is critical for advanced microwave oscillator performance.
- Measuring extremely weak phase fluctuations is a challenge for next-generation oscillators.
Purpose of the Study:
- To develop a novel technique for accurate phase synchronization of microwave oscillators.
- To enable precise measurement of ultralow phase noise.
Main Methods:
- Utilized sapphire dielectric resonators.
- Cooled resonators to liquid nitrogen temperature.
- Implemented a novel phase synchronization technique.
Main Results:
- Achieved high-quality phase synchronization with a precision of a few milliradians.
- Demonstrated the capability to measure extremely weak phase fluctuations.
Conclusions:
- The developed technique provides accurate phase synchronization for microwave oscillators.
- This method is suitable for characterizing next-generation ultralow phase noise oscillators.
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