Cryogenic sapphire dielectric resonators: performance and potential

Author

Langham, Conway D. ; Gallop, John C.

Author_Institution

Nat. Phys. Lab., Teddington, UK

Volume

Issue

fYear

1997

fDate

4/1/1997 12:00:00 AM

Firstpage

130

Lastpage

132

Abstract

Sapphire dielectric resonators (SDR) at cryogenic temperatures have been used to produce oscillators of exceptional short- and medium-term stability. We discuss the demonstrated performance achieved at the National Physical Laboratory (NPL) as well as potential long-term capabilities of this type of oscillator both as a “fly-wheel” standard for atomic clocks and in a possible determination of the fundamental physical constants

Keywords

cryogenics; dielectric resonator oscillators; frequency measurement; low-temperature techniques; measurement standards; microwave oscillators; sapphire; superconducting cavity resonators; temperature control; Al₂O₃; NPL; National Physical Laboratory; atomic clocks; cryogenic sapphire dielectric resonators; cryogenic temperatures; fly-wheel standard; fundamental physical constants; medium-term stability; short-term stability; superconductivity; Cavity resonators; Clocks; Cryogenics; Dielectrics; Laboratories; Niobium; Oscillators; Resonant frequency; Stability; Temperature;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/19.571791

Filename

571791

Link To Document

https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1455337