Atomic-based stabilization for laser-pumped atomic clocks

We describe a novel technique for stabilizing frequency shifts in laser-interrogated vapor-cell atomic clocks. The method suppresses frequency shifts due to changes in the laser frequency, intensity, and modulation index as well as atomic vapor density. The clock operating parameters are monitored b...

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Veröffentlicht in:Optics letters 2006-06, Vol.31 (12), p.1851-1853
Hauptverfasser: GERGINOV, V, SHAH, V, KNAPPE, S, HOLLBERG, L, KITCHING, J
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creator GERGINOV, V
SHAH, V
KNAPPE, S
HOLLBERG, L
KITCHING, J
description We describe a novel technique for stabilizing frequency shifts in laser-interrogated vapor-cell atomic clocks. The method suppresses frequency shifts due to changes in the laser frequency, intensity, and modulation index as well as atomic vapor density. The clock operating parameters are monitored by using the atoms themselves, rather than by using conventional schemes for laser frequency and cell temperature control. The experiment is realized using a chip-scale atomic clock. The novel atomic-based stabilization approach results in a simpler setup and improved long-term performance.
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subjects Exact sciences and technology
Measurements common to several branches of physics and astronomy
Metrology, measurements and laboratory procedures
Physics
Time and frequency
title Atomic-based stabilization for laser-pumped atomic clocks
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