DocumentCode
2128231
Title
Cryogenic sapphire oscillator with exceptionally high frequency stability
Author
Mann, A.G. ; Chang Sheng ; Luiten, A.N.
Author_Institution
Dept. of Phys., Western Australia Univ., Nedlands, WA, Australia
fYear
2000
fDate
14-19 May 2000
Firstpage
188
Lastpage
189
Abstract
Extremely high short-term frequency stability has been realised in oscillators based on liquid helium cooled sapphire resonators with a modified mounting structure. These oscillators have exhibited an Allan deviation of about 5.4/spl times/10/sup -16//spl tau//sup -1/2/ for integration times (/spl tau/) of 1 to 4 s and a minimum of 2.4/spl times/10/sup -16/ at 32 s.
Keywords
dielectric resonator oscillators; frequency stability; frequency standards; microwave measurement; sapphire; Allan deviation; cryogenic sapphire oscillator; high short-term frequency stability; liquid helium cooled sapphire resonators; microwave frequency standard; modified mounting structure; servo control; whispering gallery mode; Cryogenics; Frequency; Helium; Oscillators; Phase modulation; Phase noise; Pollution measurement; Stability; Superconducting device noise; Temperature;
fLanguage
English
Publisher
ieee
Conference_Titel
Precision Electromagnetic Measurements Digest, 2000 Conference on
Conference_Location
Sydney, NSW, Australia
Print_ISBN
0-7803-5744-2
Type
conf
DOI
10.1109/CPEM.2000.850939
Filename
850939
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