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This article is cited in 6 scientific papers (total in 6 papers)
Selection of papers presented at the symposium MPLP-2018
Raman–Ramsey pulsed excitation of coherent population trapping resonances in a 87Rb cell with a buffer gas
V. N. Baryshev, G. V. Osipenko, M. S. Aleynikov, I. Yu. Blinov All-Russian Scientific Research Institute of Physical-Technical and Radiotechnical Measurements, Mendeleevo, Moscow region
Abstract:
We report the results of experimental investigation of the Raman–Ramsey method of pulsed excitation of coherent population trapping (CPT) resonances in a rubidium vapour cell filled with a mixture of Ar and Ne buffer gases. For the development of compact quantum microwave frequency standards, this method is an alternative to the pulsed optical pumping method recently implemented using the same rubidium cell. Both methods have advantages over the traditional double radio-optical resonance technique, the main of which is the substantial suppression of the light shift of the clock transition frequency, since the evolution of the coherence of atomic states forming the clock transition occurs in the absence of laser radiation in the cell. The narrow (110–240 Hz) Raman–Ramsey resonances are obtained using the scheme of pulsed excitation of CPT resonances on the D1 lines of the 87Rb atom with the same linear (lin||lin) polarisations of the bichromatic laser radiation components. The process of optimising the central fringe linewidth, its contrast, and the linewidth-tocontrast ratio is described. The magnetic dependence of the Raman–Ramsey line central fringe linewidth is experimentally investigated.
Keywords:
rubidium vapour quantum frequency standard, pulsed optical pumping, coherent population trapping, pulsed excitation of coherent population trapping resonances, diode laser, acousto-optic modulator, electro-optic modulator.
Received: 24.10.2018 Revised: 25.01.2019
Citation:
V. N. Baryshev, G. V. Osipenko, M. S. Aleynikov, I. Yu. Blinov, “Raman–Ramsey pulsed excitation of coherent population trapping resonances in a 87Rb cell with a buffer gas”, Kvantovaya Elektronika, 49:3 (2019), 283–287 [Quantum Electron., 49:3 (2019), 283–287]
Linking options:
https://www.mathnet.ru/eng/qe17003 https://www.mathnet.ru/eng/qe/v49/i3/p283
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Abstract page: | 346 | Full-text PDF : | 80 | References: | 20 | First page: | 14 |
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