Frequency signal generation apparatus and frequency signal generation system
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United States of America Patent
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Oct 20, 2020
Grant Date -
May 2, 2019
app pub date -
Oct 26, 2018
filing date -
Oct 27, 2017
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Abstract
A frequency signal generation apparatus includes an atom cell including a first part including gaseous alkali metal atoms and a second part including liquid alkali metal atoms. A first temperature controller controls the first part's temperature. A second temperature controller controls the second part's temperature to be lower than that of the first part. First and second temperature detectors respectively detect the first and second parts' temperatures. The first temperature controller and the second temperature detector are thermally connected. The second temperature controller and the first temperature detector are thermally connected. The phase of a temperature control loop of the first part including the first temperature controller and the first temperature detector and the phase of a temperature control loop of the second part including the second temperature controller and the second temperature detector are different.
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