Light shifts in the rubidium CPT atomic clock with laser current modulation at 3.4 and 6.8 GHz
2021 ◽
Vol 2067
(1)
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pp. 012006
Keyword(s):
Q Factor
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Abstract In the paper presents results of an experimental comparison of the CPT parameters of the resonance at the D1 line in 87Rb when the laser current is modulated at frequencies 3.4 GHz and 6.8 GHz. Resonances are investigated for slope to noise ratio (Q-factor) and shifts from the microwave power. The reproducibility of the parameters of VCSEL lasers required to obtain long-term stability of an atomic clock is considered. The obtained CPT instabilities of the atomic clock for 1 second were 1.2·10−11 for the case of 3.4 GHz and 4·10−12 for 6.8 GHz.
2016 ◽
Vol 33
(8)
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pp. 1756
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Keyword(s):
2012 ◽
Vol 546-547
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pp. 1608-1613
Keyword(s):
2020 ◽
Vol 67
(1)
◽
pp. 207-216
Keyword(s):