frequency standard vapor

High-performance, compact optical standard

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-

Frequency stability performance of a laser pumped rubidium vapor …

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 …

Double-resonance studies on compact, high-performance …

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 ...

High performance vapour-cell frequency standards

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

A pulsed-Laser Rb atomic frequency standard for GNSS …

As shown in Fig. 2, a high-performing Rubidium Atomic Frequency Standard (RAFS) satisfies this requirement. Its stability, expressed in terms of Allan deviation, scales as τ −1/2 up to averaging times τ of the order of 10 4 s. This white frequency noise region is usually followed by a flicker floor component.

Spin-exchange frequency shift in alkali-metal-vapor cell frequency

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.

High performance vapour-cell frequency standards

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 ...

Compact Quantum Frequency Standard Using A …

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 …

Optical frequency standard by using a 1560 nm diode laser …

@article{osti_20929767, title = {Optical frequency standard by using a 1560 nm diode laser locked to saturated absorption lines of rubidium vapor}, author = {Masuda, Shin and Seki, Atsushi and Niki, Shoji}, abstractNote = {A robust, compact, highly accurate rubidium optical frequency standard module was developed to overcome the delicate …

(PDF) Pulsed vapor cell frequency standard with differential …

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 ...

High-performing vapor-cell frequency standards

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 ...

The Quantum Physics of 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 …

(PDF) High-performing vapor-cell frequency standards

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, ...

A portable rubidium-vapor frequency standard

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 …

A portable rubidium-vapor frequency standard

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-performance, compact optical standard

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 …

THEORETICAL AND EXPERIMENTAL STUDY OF LIGHT …

CELL FREQUENCY STANDARD OF LIGHT SHIFT IN A CPT-BASED RB VAPOR M. Zhu and L. S. Cutler Agilent Laboratories 3500 Deer Creek Rd., Palo Alto, CA 94304, USA Abstract 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 …

Realization of a pulsed optically pumped Rb clock …

2 Citations. Metrics. Abstract. We present the frequency stability performances of a vapor cell Rb clock based on the pulsed optically pumping (POP) …

High-performance, compact optical 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 the Rb two-photon transition at 778 nm. The optical standard achieves an instability of 1.8×10-13τ-1/2 for times less than 100 s and a flicker noise floor of 1×10-14 out to 6000 s.

High-performing vapor-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 …

Pulsed optically pumped $^{87}mat{Rb}

We present a multilevel theoretical approach to describe the behavior of a pulsed optically pumped (POP) $^{87}mat{Rb}$ frequency standard based on a …

stability below 10 15

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 ...

Frequency Standards | Wiley Online Books

Of all measurement units, frequency is the one that may be determined with the highest degree of accuracy. It equally allows precise measurements of other physical and technical quantities, whenever they can be measured in terms of frequency. This volume covers the central methods and techniques relevant for frequency standards …

A modified C-field circuit for the rubidium atomic clock

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 …

Frequency Standards

All commercial rubidium frequency standards operate by disciplining a crystal oscillator to the hyperfine transition at 6.834,682,612 GHz in rubidium. The amount of light from ... rubidium vapor in the resonance cell is exposed to microwave PRS10 Rubidium Frequency Standard. Stanford Research Systems phone: (408)744-9040 …

High-performance, compact optical 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 the Rb two-photon transition at 778 nm.

Study of pulsed optically pumped Rb frequency standard

This paper presents new results obtained with a laboratory prototype of a pulsed optically pumped frequency standard based on a vapor cell containing 87Rb diluted in a buffer gas. A ...

Optical frequency standard by using a 1560 nm diode laser

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 …

Compact Quantum Frequency Standard Using A Rubidium Vapor …

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 absence of optical radiation in a cell, and this results in the essential suppression of the light shift. In addition, the technique of microwave excitation using the Ramsey scheme allows ...

A Wide-Frequency-Tuning Micro-Loop-Gap Resonator for …

Abstract: To miniaturize the double-resonance (DR) rubidium (Rb) vapor-cell atomic clocks, a new type of micro-loop-gap microwave resonator ( $mu $ -LGR) is proposed for TE011-like mode where the magnetic field inside the cavity is homogeneous and oriented along its longitudinal axis over a large volume.It provides more design …