The results are used in particular to evaluate the spin-exchange frequency shift in Rb vapor cell frequency standards used in many applications. It turns out that, due to possible fluctuations in the atomic density, spin exchange may affect significantly the medium and long term frequency stability of the frequency standard.
We describe a high-performance, compact optical frequency standard based on a microfabricated Rb vapor cell and a low-noise, external cavity diode laser operating on …
Many nowadays scientific and technological applications need very precise time and frequency reference signals. Very often, only atomic clocks can guarantee the high level of accuracy and stability required by these signals. In the current scenario of atomic frequency standards, vapor-cell clocks are particularly suited to be employed in those …
Optical frequency standard by using a 1560 nm diode laser locked to saturated absorption lines of rubidium vapor Appl Opt. 2007 Jul 20;46(21):4780-5. doi: 10.1364/ao.46.004780. ... As a result, the magnetic-field-insensitive optical frequency standard, which can be embedded in optical systems, exhibiting uncertainty less than at …
The first results are presented for experimental studies of a method of pulsed optical pumping for the purpose of creating a compact quantum frequency standard on …
We present a compact optical frequency standard based on two-photon spectroscopy at 778 nm in a rubidium vapor cell. We demonstrate fractional instability of 3e-13/, √τ/s for …
134 A. GODONE, F. LEVI, C. E. CALOSSO and S. MICALIZIO 152 5. Pulsed optically pumped standards 154 5. 1. The POP maser 156 5. 2. The POP clock with optical detection 157 5. 3. Frequency shifts ...
This paper presents the current results of our development of a laser-pumped passive rubidium frequency standard. With a vapor cell containing isotopic Rb/sup 87/ and a mixture of buffer gas we obtained a double resonance signal compatible with a short-term stability of 2.10/sup -13/ /spl tau//sup -1/2/ (shot noise limit). Measurements of the effect …
We report on the implementation and metrological characterization of a vapour-cell Rb frequency standard working in a pulsed regime. The three main parts of the clock, physics package, optics ... and to be easily customized for signal output generation at 4.596 GHz or 6.834 GHz for applications to Cs or Rb vapor-cell frequency standards. …
Here, we discuss the frequency sensitivities and the resulting stability limitations at one day timescale for a rubidium vapor-cell clock based on a compact magnetron-type cavity operated in air ...
Thus, the proposed compact tunable $mu $ -LGR has a high potential in miniature vapor-cell atomic frequency standards. Published in: IEEE Transactions on Microwave Theory and Techniques ( Volume: 71, Issue: 12, December 2023) Article #: Page(s): 5135 - 5146. Date of Publication: 23 May ...
We describe a high-performance, compact optical frequency standard based on a microfabricated Rb vapor cell and a low-noise, external cavity diode laser operating on the Rb two-photon transition...
We present a multilevel theoretical approach to describe the behavior of a pulsed optically pumped (POP) frequency standard based on a microwave cavity …
The current state of the art of portable microwave clocks and frequency standards are based on beam tubes [], vapor cells [2, 3], and trapped ions in buffer gas [4,5,6].In beam-tube clocks, the linewidth of the atomic resonance is proportional to the length of the beam tube and this places limits to the extent to which they can be …
In frequency standards with a pulsed operation, the phase noise around even harmonics of the pulse rate is down-converted by aliasing to baseband. Taking into account the …
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Such a design demonstrates high potential to improve the frequency stability; it is compact and hence suitable for a future generation of compact, high-precision frequency standards based on vapor ...
A Wide-Frequency-Tuning Micro-Loop-Gap Resonator for Miniature Rubidium Vapor-Cell Atomic Frequency Standards December 2023 IEEE Transactions on Microwave Theory and Techniques PP(99):1-12
The vapor cell standards are useful in our everyday lives for applications ranging from telecommunications, navigation, metrology etc. ... high-performance rubidium cell frequency standards @inproceedings{Bandi2013DoubleresonanceSO, title={Double-resonance studies on compact, high-performance rubidium cell frequency standards}, …
Many nowadays scientific and technological applications need very precise time and frequency reference signals. Very often, only atomic clocks can guarantee the high level of accuracy and stability required by these signals. In the current scenario of atomic frequency standards, vapor-cell clocks are particularly suited to be employed in …
This paper presents new results obtained with a laboratory prototype of a pulsed optically pumped frequency standard based on a vapor cell containing 87 Rb …
We present the frequency stability performances of a vapor cell Rb clock based on the pulsed optically pumping (POP) technique. The clock has been developed …
1. Introduction. Since the first demonstration of an atomic frequency standard (AFS) (Essen and Parry, 1955) and the following redefinition of the SI second in 1967, AFSs have found a multitude of applications (Maleki and Prestage, 2005), both on ground as well as in space.Primary frequency standards directly interrogate the …
The AC Stark shift (the light shift) is very important in the performance of laser-pumped vapor cell atomic frequency standards. The frequency stability of a compact rubidium vapor cell atomic frequency standard with an AC Stark shift suppression laser pumping method was evaluated. The applications of such a device include serving as primary …
We review advances in the field of laser-pumped vapor-cell clocks and we provide an overview of the techniques that allowed to achieve frequency stabilities in the order of 1 × 10 -13 at 1 s ...
The system output reaches the same frequency stability as the atomic transition, making it a dependable source of frequency standard. ... the frequency stability of vapor-cell rubidium clock working in atmospheric environment reaches the level of (10^{ - 15}). And the performance of prototype still has the potential to be improved.
We describe the design of a miniature lamp for the rubidium vapor cell frequency standard. As a complex compound, the lamp is divided into four aspects. The mechanical structure is firstly ...
We present the frequency stability performances of a vapor cell Rb clock based on the pulsed optically pumping (POP) technique. The clock has been developed in the frame of a collaboration between ...
We describe a high-performance, compact optical frequency standard based on a microfabricated Rb vapor cell and a low-noise, external cavity diode laser …
DOI: 10.1109/TMTT.2023.3276194 Corpus ID: 258873359; A Wide-Frequency-Tuning Micro-Loop-Gap Resonator for Miniature Rubidium Vapor-Cell Atomic Frequency Standards @article{Su2023AWM, title={A Wide-Frequency-Tuning Micro-Loop-Gap Resonator for Miniature Rubidium Vapor-Cell Atomic Frequency Standards}, …
