Search Results - "Lours, M."
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1
A clock network for geodesy and fundamental science
Published in Nature communications (09-08-2016)“…Leveraging the unrivalled performance of optical clocks as key tools for geo-science, for astronomy and for fundamental physics beyond the standard model…”
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2
Hybridizing matter-wave and classical accelerometers
Published in Applied physics letters (06-10-2014)“…We demonstrate a hybrid accelerometer that benefits from the advantages of both conventional and atomic sensors in terms of bandwidth (DC to 430 Hz) and long…”
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3
High-resolution microwave frequency dissemination on an 86-km urban optical link
Published in Applied physics. B, Lasers and optics (01-03-2010)“…We report the first demonstration of a long-distance ultra-stable frequency dissemination in the microwave range. A 9.15-GHz signal is transferred through an…”
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4
Detecting inertial effects with airborne matter-wave interferometry
Published in Nature communications (20-09-2011)“…Inertial sensors relying on atom interferometry offer a breakthrough advance in a variety of applications, such as inertial navigation, gravimetry or ground-…”
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5
Experimental realization of an optical second with strontium lattice clocks
Published in Nature communications (2013)“…Progress in realizing the SI second had multiple technological impacts and enabled further constraint of theoretical models in fundamental physics. Caesium…”
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6
Amplitude to phase conversion of InGaAs pin photo-diodes for femtosecond lasers microwave signal generation
Published in Applied physics. B, Lasers and optics (01-02-2012)“…When a photo-diode is illuminated by a pulse train from a femtosecond laser, it generates microwaves components at the harmonics of the repetition rate within…”
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7
A simple laser system for atom interferometry
Published in Applied physics. B, Lasers and optics (01-11-2014)“…We present here a simple laser system for a laser-cooled atom interferometer, where all functions (laser cooling, interferometry and detection) are realized…”
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8
High-Stability Comparison of Atomic Fountains Using Two Different Cryogenic Oscillators
Published in IEEE transactions on ultrasonics, ferroelectrics, and frequency control (01-08-2016)“…We present a detailed characterization of two atomic clock interrogation systems based on two different cryogenic sapphire oscillators operated simultaneously…”
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9
Sub-100 attoseconds stability optics-to-microwave synchronization
Published in Applied physics letters (24-05-2010)“…We use two fiber-based femtosecond frequency combs and a low-noise carrier suppression phase detection system to characterize the optical to microwave…”
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10
Long-distance frequency dissemination with a resolution of 10-17
Published in Physical review letters (27-05-2005)“…We use a new technique to disseminate microwave reference signals along ordinary optical fiber. The fractional frequency resolution of a link of 86 km in…”
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11
Switching atomic fountain clock microwave interrogation signal and high-resolution phase measurements
Published in IEEE transactions on ultrasonics, ferroelectrics, and frequency control (01-07-2009)“…This paper focuses on the development of tools aiming to solve several problems related to the microwave interrogation signal in atomic fountains. We first…”
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12
Long-distance frequency dissemination with a resolution of 10(-17)
Published in Physical review letters (27-05-2005)“…We use a new technique to disseminate microwave reference signals along ordinary optical fiber. The fractional frequency resolution of a link of 86 km in…”
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Journal Article -
13
Wide bandwidth phase-locked diode laser with an intra-cavity electro-optic modulator
Published in Optics communications (01-03-2009)“…Two extended cavity laser diodes are phase-locked, thanks to an intra-cavity electro-optical modulator. The phase-locked loop bandwidth is on the order of…”
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14
Corrigendum: Experimental realization of an optical second with strontium lattice clocks
Published in Nature communications (01-12-2013)“…In the legend to Fig. 4c in this Article, references 47 and 48 were incorrectly included in a list of sources for 87 Sr clock frequency measurements. The…”
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15
Design and metrological features of microwave synthesizers for atomic fountain frequency standard
Published in IEEE transactions on ultrasonics, ferroelectrics, and frequency control (01-04-2007)“…In this paper we describe the improved redesign of the microwave frequency synthesizers for Laboratoire National d'Essais-Systemes de Reference Temps-Espace…”
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16
Two-Way Satellite Time and Frequency Transfer using an opensource, openhardware Software-Defined Radio platform
Published in 2024 4th URSI Atlantic Radio Science Meeting (AT-RASC) (19-05-2024)“…Initial results of a portable (multiplatform) opensource, openhardware implementation of a pseudo-random binary number spectrum-spreading framework using…”
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Conference Proceeding -
17
Development of an Opensource, Openhardware, Software-Defined Radio Platform for Two-Way Satellite Time and Frequency Transfer
Published in 2023 Joint Conference of the European Frequency and Time Forum and IEEE International Frequency Control Symposium (EFTF/IFCS) (15-05-2023)“…We describe an opensource, openhardware experimental Software-Defined Radio setup for prototyping various digital communication over microwave links with a…”
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Conference Proceeding -
18
Progress in atomic fountains at LNE-SYRTE
Published in IEEE transactions on ultrasonics, ferroelectrics, and frequency control (01-03-2012)“…We give an overview of the work done with the Laboratoire National de Metrologie et d'Essais-Systemes de Reference Temps-Espace (LNE-SYRTE) fountain ensemble…”
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Journal Article Conference Proceeding -
19
Ultralow noise microwave generation with fiber-based optical frequency comb and application to atomic fountain clock
Published in Applied physics letters (06-04-2009)“…We demonstrate the use of a fiber-based femtosecond laser locked onto an ultrastable optical cavity to generate a low-noise microwave reference signal…”
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20
Characterizing a fiber-based frequency comb with electro-optic modulator
Published in IEEE transactions on ultrasonics, ferroelectrics, and frequency control (01-03-2012)“…We report on the characterization of a commercial core fiber-based frequency comb equipped with an intracavity free-space electro-optic modulator (EOM). We…”
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Journal Article Conference Proceeding