Physics – Atomic Physics
Scientific paper
2007-10-03
Physics
Atomic Physics
9 pages, 5 figures, submitted
Scientific paper
We evaluate the use of Coherent Population Trapping (CPT) excited with parallely polarized laser fields in vapour cell atomic clocks. We study the resonance shape, the discriminator slope and signal-to-noise ratio as a function of relevant parameters such as the laser frequency detuning and the applied magnetic field. We show that a stability of $6 \cdot 10^{-12}$ $\tau^{-1/2}$ may be reached in a compact system using a modulated VCSEL.
Breschi E.
Kazakov Georgy
Matisov B.
Mileti Gaetano
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