Miniature Atomic Clocks and Timing Systems
CSEM SA
MEMS-based miniature microwave and compact optical atomic clocks for space systems — ACES mission heritage, Safran and Orolia partnerships.
Technical specifications
- Atomic reference technology
- Patented MEMS rubidium vapour cells
- Miniature microwave clock
- Low SWaP, MEMS-based rubidium reference
- Compact optical clock
- All-optical operating principle, rack-compatible
- Quantum sensor types
- Magnetometers, gyroscopes, radiometers (NV-diamond and MEMS vapour cell)
- Heritage
- ACES mission (Safran), Orolia Chip Scale Rubidium Oscillator
- Materials
- Rubidium vapour cells, diamond NV-centers, LNOI, ScAlN, SiC
About
CSEM develops miniature atomic clocks and timing systems leveraging proprietary patented MEMS rubidium vapour cell technology. The miniature microwave atomic clock variant combines low size, weight and power (SWaP) with high frequency stability using MEMS-fabricated rubidium cells as the atomic reference. A compact optical atomic clock operating on an all-optical principle is also available in a rack-compatible form factor.
These systems have heritage in the ACES (Atomic Clock Ensemble in Space) mission, developed with Safran, and in the Chip Scale Rubidium Oscillator partnership with Orolia. Applications span space systems, terrestrial infrastructure and scientific instrumentation. CSEM also develops quantum sensors — magnetometers, gyroscopes and radiometers — based on MEMS atomic vapour cells and diamond nitrogen-vacancy (NV) centres, extending the precision timing and sensing portfolio.
Documentation
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