DocumentCode :
2594451
Title :
Optimization of the Dick effect in an optical lattice clock
Author :
Westergaard, Philip G. ; Lodewyck, Jérôme ; Lemonde, Pierre
Author_Institution :
Obs. de Paris, LNE-SYRTE, UPMC, Paris, France
fYear :
2009
fDate :
20-24 April 2009
Firstpage :
1187
Lastpage :
1193
Abstract :
We discuss the optimization of the Dick effect in an optical lattice clock. We show that optimizing the time sequence of operation of the clock can lead to a significant reduction of the clock stability degradation by the frequency noise of the interrogation laser. By using a non-destructive detection of the atoms, we are able to recycle most of the atoms between cycles and consequently to strongly reduce the time spent capturing the atoms in each cycle. With optimized parameters, we expect a fractional Allan deviation better than 2 middot 10-16 tau-1/2 for the lattice clock.
Keywords :
clocks; optical lattices; Dick effect; clock stability degradation; frequency noise; interrogation laser; optical lattice clock; 1f noise; Atomic beams; Clocks; Degradation; Frequency; Laser noise; Laser stability; Lattices; Noise reduction; Optical noise;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Frequency Control Symposium, 2009 Joint with the 22nd European Frequency and Time forum. IEEE International
Conference_Location :
Besancon
ISSN :
1075-6787
Print_ISBN :
978-1-4244-3511-1
Electronic_ISBN :
1075-6787
Type :
conf
DOI :
10.1109/FREQ.2009.5168387
Filename :
5168387
Link To Document :
بازگشت