Vapour microcell for chip scale atomic frequency standard

Douahi, A.; Nieradko, Ł.; Beugnot, Jean‐Charles; Dziuban, Jan; Maillote, H.; Guérandel, Stéphane; Moraja, Marco; Gorecki, Christophe; Giordano, V.

doi:10.1049/el:20070147

Cited by 62 publications

(35 citation statements)

References 2 publications

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“…CPT interaction occurs in a 2-mm diameter and 1.4-mm long microfabricated cell realized according to the process flow described in [17][18][19]. The cell temperature is stabilized at the mK level using a commercial temperature controller.…”

Section: Experimental Set-upmentioning

confidence: 99%

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First-order cancellation of the Cs clock frequency temperature-dependence in Ne-Ar buffer gas mixture

Boudot¹,

Miletic²,

Dziuban³

et al. 2011

Opt. Express

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Through the detection of Coherent Population Trapping (CPT) resonances, we demonstrate the temperature-dependence cancellation of the Cs clock frequency in microfabricated vapor cells filled with a mixture of Ne and Ar. The inversion temperature at which the Cs clock frequency temperature sensitivity is greatly reduced only depends on the partial pressure of buffer gases and is measured to be lower than 80 • C as expected with simple theoretical calculations. These results are important for the development of state-of-the-art Cs vapor cell clocks with improved long-term frequency stability.

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Section: Experimental Set-upmentioning

confidence: 99%

“…Mixtures with N 2 were not allowed due to the absorption of this gas by the Cs dispenser used for Cs activation and filling process [18]. Several microcells have been characterized in FEMTO-ST and UniNe laboratories using similar laboratory-prototype Cs CPT clocks.…”

Section: Introductionmentioning

confidence: 99%

First-order cancellation of the Cs clock frequency temperature-dependence in Ne-Ar buffer gas mixture

Boudot¹,

Miletic²,

Dziuban³

et al. 2011

Opt. Express

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“…Compact Rb atomic clocks (overall volumes of 100-1000 cm 3 ), are widely used in many applications including navigation systems, network synchronizations and digital communications [1]. A common commercial implementation of such an atomic clock is the compact (~100 cm 3 ) Rubidium microwave frequency standard based on the DoubleResonance (DR) technique, using a glass-blown Rb plasma discharge lamp to achieve optical pumping.…”

Section: Introductionmentioning

confidence: 99%

“…A common commercial implementation of such an atomic clock is the compact (~100 cm 3 ) Rubidium microwave frequency standard based on the DoubleResonance (DR) technique, using a glass-blown Rb plasma discharge lamp to achieve optical pumping. With the advent of microtechnology there has been an upsurge in portable devices (GPS receivers, for example) leading to a growing need for smaller, lower-cost, chip-scale atomic clocks with reduced power consumption, that show better frequency stability than the currently used quartz crystal oscillators.…”

Section: Introductionmentioning

confidence: 99%

“…With the advent of microtechnology there has been an upsurge in portable devices (GPS receivers, for example) leading to a growing need for smaller, lower-cost, chip-scale atomic clocks with reduced power consumption, that show better frequency stability than the currently used quartz crystal oscillators. This has led to research towards miniaturizing atomic clocks to reach volumes of few cm 3 or below [2,3], mostly based on the Coherent Population Trapping (CPT) approach that has been preferred over the traditional DR technique [4].…”

Section: Introductionmentioning

confidence: 99%

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Low-Power chip-scale Rubidium plasma light source for miniature atomic clocks

Venkatraman

Shea

Pétremand

et al. 2011

2011 Joint Conference of the IEEE International Frequency Control and the European Frequency and Time Forum (FCS) Proceedings

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Abstract-We present the development, testing and characterization of a low-power chip-scale Rubidium (Rb) plasma light source designed to serve for optical pumping in miniature atomic clocks. The technique used is electrodeless capacitively coupled plasma (CCP) discharge, driven in a microfabricated Rb vapor cell. The device is electrically driven at frequencies between 1 and 36 MHz to emit 140 µW of stable optical power while coupling < 6 mW of electrical power to the discharge cell. To our knowledge this is the first reported Rb plasma emitted from a chip-scale device.

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