Title :
Frequency metrology with optical clocks: comparison of the Ca and Hg+ clock transitions
Author :
Oates, C.W. ; Diddams, S.A. ; Biz, S. ; Curtis, E.A. ; Ramond, T.M. ; Bartels, A. ; Bergquist, J.C. ; Hollberg, L.
Author_Institution :
Nat. Inst. of Stand. & Technol., Boulder, CO, USA
Abstract :
We present results on optical atomic clocks based on lasers stabilized to optical transitions (in Ca and Hg+) and whose frequencies are phase-coherently divided down to the microwave domain with a spectrally-broadened mode-locked fs-laser.
Keywords :
atomic clocks; calcium; frequency standards; high-speed optical techniques; laser frequency stability; laser mode locking; mercury (metal); spectral line broadening; Ca; Ca clock transitions; Hg+; Hg+ clock transitions; frequency metrology; laser frequency stability; microwave domain; optical atomic clocks; optical clocks; optical transitions; phase-coherently divided; spectrally-broadened mode-locked fs-laser; Atom lasers; Atom optics; Atomic clocks; Frequency; Laser mode locking; Laser stability; Laser transitions; Masers; Mercury (metals); Metrology;
Conference_Titel :
Lasers and Electro-Optics Society, 2002. LEOS 2002. The 15th Annual Meeting of the IEEE
Print_ISBN :
0-7803-7500-9
DOI :
10.1109/LEOS.2002.1134034
