The performance of a vapor-cell rubidium frequency standard working in the pulsed regime, in which the clock signal is represented by a Ramsey pattern observed on an optically detected laser absorption signal, agrees with previously reported theoretical predictions. Expand. 21. PDF.

Three portable optically-pumped rubidium-vapor. frequency standards have been constructed. Output frequencies of 5.,MHz and 100 kHz with a stability of better than 1:10 have been realized. The weight without power supply is IS kg and the power required, exclusive of temperature control, is about 11 watts.

High-performing vapor-cell frequency standards A. Godone, F. Levi, C. E. Calosso and S. Micalizio(∗) INRIM, Istituto Nazionale di Ricerca Metrologica - Torino, Italy received 13 November 2014 ...

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 at 778 nm.

Frequency standards based on the two-photon transition of Rb benefit from high component technology readiness level, allow for vapor cell micro-integration and physics package miniaturization, and ...

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}, …

Yue Chang Jie Qin. Physics. Physical Review A. 2024. In atomic vapor cells, atoms collide with the inner surface, causing their spin to randomize on the walls. This wall-depolarizing effect is diffusive, and it becomes more pronounced in …

32.30.Bv; Level crossing and optical pumping; Time and frequency; Radio-frequency microwave and infrared spectra. We present a multilevel theoretical approach to describe …

A robust, compact, highly accurate rubidium optical frequency standard module was developed to overcome the delicate performance of conventional frequency stabilized lasers. A frequency doubled 1560 nm distributed feedback diode laser locked to a rubidium D2 saturated absorption line without using an optical amplifier was demonstrated, and …

High performance vapour-cell frequency standards. M Gharavipour, C Affolderbach, S Kang, T Bandi, F Gruet, M Pellaton and. G Mileti. Laboratoire Temps-Fréquence, Institut de Physique, Université ...

The white frequency noise region extends up to (4times 10^4) s (drift removed), allowing to reach the value (6times 10^{-16}), a record result for a vapor-cell standard. The clock prototype ...

One of the important subjects in coherent-population-trapping-based (CPT-based) vapor cell frequency standards is the light shift (ac Stark shift. We calculate the light shift using a numerical method and perturbation approximation. Experimentally, we measure light shift using a pair of phase-locked diode lasers as well as a frequency-modulated diode laser. …

Reference Standards. Article PDF Available. High performance vapour-cell frequency standards. June 2016. Journal of Physics Conference Series 723 (1):012006. DOI:...

High-performing vapor-cell frequency standards. March 2015; La Rivista del Nuovo Cimento 38(3):133-171; ... frequency standard based on a paraffin-coated cell has been realized, ...

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 …

reach the value 6×10−16, a record result for a vapor-cell standard. e clock prototype includes an engineered physics package and a laboratory prototype for the electronic and the optical ...

The short-term stability of our CPT-based rubidium vapor cell frequency standard is measured as 1.3 x 10(-12) tau (-1/2), which is limited by the phase noise of the reference local oscillator used.

frequency standard based on a microfabricated Rb vapor cell and a low-noise, external cavity diode laser operating on the Rb two-photon transition at 778nm. The optical standard achieves an instability of 1.8 1/210 ductor probe laser [13t for times less than 100s and a flicker noise floor of 1 10 14 out to 6000s. At long integra-

The rubidium frequency standard is widely used in global positioning systems, 1,2 communication, navigation, and running survey systems owing to its excellent properties such as low weight, small volume, low power consumption, and high reliability. 3,4 The lamp-pumped rubidium atomic frequency standard (RAFS) arguably affords the …

The vapor cell standards are useful in our everyday lives for applications ranging from telecommunications, navigation, metrology etc. In view of improving the performances of the Rb cell standards, two different clock approaches were studied in detail: The first one is on use of vapor cells (1.4 cm3) whose inner walls are coated with anti ...

A method of controlling light shift in CPT-based frequency standards is proposed and implemented in Agilent Laboratories. The short-term stability of our CPT-based rubidium vapor cell frequency standard is measured as 1.3 x 10^-I2 T^-1/2, which is limited by the phase noise of the reference local oscillator used.

The main advantage of frequency standards on a vapor cell with POP is determined by the fact that atoms complete the clock microwave transition in the …

vapor-cell clocks with optical detection," in Pr oceedings of IEEE Conference on the Eur opean Frequency and T ime Forum and IEEE International F requency Control Symposium, (IEEE, 2017), pp ...

PDF | Lamp-pumped rubidium atomic frequency standard (RAFS) is one of the most commonly utilized atomic frequency standards. ... " Mesoscopic physics in vapor-cell atomic . clocks," in: Proc ...

Three portable optically-pumped rubidium-vapor. frequency standards have been constructed. Output frequencies of 5.,MHz and 100 kHz with a stability of better than 1:10 …

Abstract. 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 ...

This thesis concerns the development, study, and optimisation of compact and high-performance frequency references based on rubidium (Rb) vapour cells1. More specially, two Rb vapour-cell frequency references are studied: an optical-frequency reference at 1.5 μm and a double-resonance pulsed optically pumped (POP) atomic clock. The use of …

Atomic vapor frequency standards, and in particular rubidium vapor frequency standards utilize electrode-less discharge lamps in order to measure the atomic hyperfine frequency. These lamps have been isolated as a reliability problem in commercially available frequency standards, and have been associated with failures of rubidium …

In the current scenario of atomic frequency standards, vapor-cell clocks are particularly suited to be employed in those activities that demand good frequency stability performances joined to compactness, reliability and low power consumption. Recently, due to better-performing laser sources and to innovative techniques to prepare and detect ...