ARGENCE, Bérengère; PREVOST, Eddie; LÉVÈQUE, Thomas; LE GOFF, Roland; LEMONDE, Pierre; BIZE, Sebastien; SANTARELLI, Giorgio

doi:10.1364/OE.20.025409

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ARGENCE, Bérengère
Systèmes de Référence Temps Espace [SYRTE]

PREVOST, Eddie
SODERN

LÉVÈQUE, Thomas
Centre National d'Études Spatiales [Toulouse] [CNES]

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Ce document a été publié dans

Optics Express. 2012-10-25, vol. 20, n° 23, p. 25409-25420

Optical Society of America - OSA Publishing

Résumé en anglais

We report the main features and performances of a prototype of an ultra-stable cavity designed and realized by industry for space applications with the aim of space missions. The cavity is a 100 mm long cylinder rigidly held at its midplane by a engineered mechanical interface providing an efficient decoupling from thermal and vibration perturbations. Intensive finite element modeling was performed in order to optimize thermal and vibration sensitivities while getting a high fundamental resonance frequency. The system was designed to be transportable, acceleration tolerant (up to several g) and temperature range compliant [−33◦C;73◦C]. Thermal isolation is ensured by gold coated Aluminum shields inside a stainless steel enclosure for vacuum. The axial vibration sensitivity was evaluated at(4±0.5)×10 −11/(m.s−2), while the transverse one is <1×10−11/(m.s−2). The fractional frequency instability is 1×10−15 from 0.1 to a few seconds and reaches 5−6×10−16at 1s.< Réduire

Mots clés en italien

Metrological instrumentation

Space instrumentation

Fabry-Perot

Laser stabilization

Optical resonators

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Prototype of an ultra-stable optic cavity for space applications

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