Method and apparatus for reduction of atomic frequency standard phase noise
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United States of America Patent
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Feb 13, 1996
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app pub date -
Nov 17, 1994
filing date -
Nov 17, 1994
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Abstract
A method of reducing the interrogation signal phase noise in passive, compact, low-cost commercial atomic standards, particularly phase noise occurring at a Fourier frequency equal to twice the modulation frequency, 2f.sub.mod. The method involves selecting the modulation frequency so that 2f.sub.mod is on the order of, or greater than, the atomic bandwidth (full width at half maximum signal value).
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