Title :
Light shift of Double Resonance and Coherent Population Trapping in wall-coated cells for compact Rb clocks
Author :
Miletic, D. ; Bandi, T. ; Affolderbach, C. ; Mileti, G.
Author_Institution :
Lab. Temps-Frequence (LTF), Univ. de Neuchatel, Neuchatel, Switzerland
Abstract :
We report on a comparative study on the light shift in two possible clock schemes for vapor-cell standards, Double Resonance (DR) and Coherent Population Trapping (CPT), by using the same wall coated cell and compact atomic resonator. Our experimental setup allowed us to measure and study the AC Stark shift, resulting from a mono-chromatic or a non monochromatic optical excitation. The light-shift was investigated as function of the laser intensity and the laser frequency.
Keywords :
Stark effect; atomic clocks; optical resonators; optical variables measurement; radiation pressure; rubidium; spectral line shift; AC Stark shift measurement; Rb; coherent population trapping; compact atomic resonator; compact rubidium clock; double resonance light shift; laser frequency; laser intensity; monochromatic optical excitation; nonmonochromatic optical excitation; vapor cell standards; wall coated cells; Atomic clocks; Frequency measurement; Laser transitions; Measurement by laser beam; Power lasers; Resonant frequency;
Conference_Titel :
Frequency Control and the European Frequency and Time Forum (FCS), 2011 Joint Conference of the IEEE International
Conference_Location :
San Fransisco, CA
Print_ISBN :
978-1-61284-111-3
DOI :
10.1109/FCS.2011.5977731
