Compact Cold-Atom Clock for Onboard Timebase: Tests in Reduced Gravity
Language
en
Article de revue
This item was published in
Physical Review Applied. 2018, vol. 10, n° 6, p. 064007
American Physical Society
English Abstract
We present a compact atomic clock using cold rubidium atoms based on an isotropic light cooling, a Ramsey microwave interrogation, and an absorption detection. Its technology readiness level is suitable for industrial ...Read more >
We present a compact atomic clock using cold rubidium atoms based on an isotropic light cooling, a Ramsey microwave interrogation, and an absorption detection. Its technology readiness level is suitable for industrial transfer. We use a fiber optical bench, based on a frequency-doubled telecom laser. The isotropic light cooling technique allows us to cool down the atoms in 100 ms and works with a cycle time of around 200 ms. We carry out measurements in simulated microgravity and obtain narrow fringes, up to 1.25 Hz.Read less <
English Keywords
Cooling & trapping
ions & molecules in cavities
Time & frequency standards
Atomic optical & lattice clocks
Atom lasers
Atom interferometry
Space science
Atoms
Optical fibers
Origin
Hal imported