Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Stability properties of an Rb CPT atomic clock with buffer-gas-free cells under dynamic excitation. / Kobtsev, Sergey; Radnatarov, Daba; Khripunov, Sergey и др.
в: Journal of the Optical Society of America B: Optical Physics, Том 36, № 10, 01.10.2019, стр. 2700-2704.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
}
TY - JOUR
T1 - Stability properties of an Rb CPT atomic clock with buffer-gas-free cells under dynamic excitation
AU - Kobtsev, Sergey
AU - Radnatarov, Daba
AU - Khripunov, Sergey
AU - Popkov, Ivan
AU - Andryushkov, Valerii
AU - Steshchenko, Tatiana
N1 - Publisher Copyright: © 2019 Optical Society of America.
PY - 2019/10/1
Y1 - 2019/10/1
N2 - This work presents a study of the short-term stability properties of Rb atomic clocks based on coherent population trapping (CPT) under dynamic excitation of a CPT resonance in cells without buffer gas. It is demonstrated that in an optical cell with anti-relaxation coating of its inner walls, the best stability is achieved at the scanning frequency of the frequency difference of the bichromatic pump field equal to 2 kHz at the resonance width of 450 Hz. In cells without a wall coating, the optimal scanning frequency range is found to be 1.2–2.8 kHz at the resonance width of 29 kHz. Examination of the slope of the stabilization system’s discriminant curve at zero error signal for buffer-gas-free cells uncovered an amount of correlation between the discriminant curve slope and atomic clock stability. It is demonstrated that the highest stability of atomic clocks in dynamic excitation mode is achieved at a ratio of scanning frequency and amplitude around 1.
AB - This work presents a study of the short-term stability properties of Rb atomic clocks based on coherent population trapping (CPT) under dynamic excitation of a CPT resonance in cells without buffer gas. It is demonstrated that in an optical cell with anti-relaxation coating of its inner walls, the best stability is achieved at the scanning frequency of the frequency difference of the bichromatic pump field equal to 2 kHz at the resonance width of 450 Hz. In cells without a wall coating, the optimal scanning frequency range is found to be 1.2–2.8 kHz at the resonance width of 29 kHz. Examination of the slope of the stabilization system’s discriminant curve at zero error signal for buffer-gas-free cells uncovered an amount of correlation between the discriminant curve slope and atomic clock stability. It is demonstrated that the highest stability of atomic clocks in dynamic excitation mode is achieved at a ratio of scanning frequency and amplitude around 1.
KW - FREQUENCY-MODULATION PARAMETERS
KW - RELAXATION
KW - OPTIMIZATION
UR - http://www.scopus.com/inward/record.url?scp=85073067160&partnerID=8YFLogxK
U2 - 10.1364/JOSAB.36.002700
DO - 10.1364/JOSAB.36.002700
M3 - Article
AN - SCOPUS:85073067160
VL - 36
SP - 2700
EP - 2704
JO - Journal of the Optical Society of America B: Optical Physics
JF - Journal of the Optical Society of America B: Optical Physics
SN - 0740-3224
IS - 10
ER -
ID: 21858066