DocumentCode
2930795
Title
Cryo-cooled sapphire oscillator with ultra-high stability
Author
Wang, R.T. ; Dick, G.J.
Author_Institution
Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA, USA
fYear
1998
fDate
6-10 July 1998
Firstpage
65
Lastpage
66
Abstract
We present design details and test results for the first short-term frequency standard to achieve ultra-high stability (/spl sigma//sub y/<10/sup -14/) without the use of liquid helium. Technical features include vibration isolation by atmospheric helium gas and a new sapphire resonator design with adjustable compensation operating at 8-10 K.
Keywords
compensation; cooling; crystal oscillators; frequency stability; frequency standards; low-temperature techniques; sapphire; vibration isolation; 8 to 10 K; Al/sub 2/O/sub 3/; adjustable compensation; atmospheric helium gas; cryo-cooled sapphire oscillator; cryocooler; frequency stability; maser reference; sapphire resonator design; short-term frequency standard; ultrahigh stability; vibration isolation; Cooling; Cryogenics; Frequency; Helium; Laboratories; Oscillators; Phase noise; Stability; Temperature; Testing;
fLanguage
English
Publisher
ieee
Conference_Titel
Precision Electromagnetic Measurements Digest, 1998 Conference on
Conference_Location
Washington, DC, USA
Print_ISBN
0-7803-5018-9
Type
conf
DOI
10.1109/CPEM.1998.699778
Filename
699778
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