Title :
A compact high stability optical clock based on laser-cooled Ca
Author :
Oates, C.W. ; Le Coq, Y. ; Wilpers, G. ; Hollberg, L.
Author_Institution :
Nat. Inst. of Stand. & Technol., Boulder, CO, USA
Abstract :
We report new measurements and modifications for a simple, compact, Ca atomic clock at 657 nm. External measurements were made against an independent Yb lattice optical clock via a fs-laser frequency comb. These results lead to upper limits for the Ca clock instability that are competitive on short time scales with the best existing atomic standards.
Keywords :
atom-photon collisions; atomic clocks; calcium; frequency standards; high-speed optical techniques; laser cooling; laser frequency stability; optical lattices; Ca; atomic clock; atomic standards; clock instability; compact high stability optical clock; fs-laser frequency comb; laser-cooled Ca; lattice optical clock; wavelength 657 nm; Atom optics; Atomic beams; Atomic clocks; Atomic measurements; Frequency measurement; Measurement by laser beam;
Conference_Titel :
Frequency and Time Forum (EFTF), 2006 20th European
Conference_Location :
Braunschweig
Print_ISBN :
978-1-4673-2642-1
