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Low noise amplication of an optically carried microwave signal: application to atom interferometry
Thomas Lévèque ( ) 1, Alexandre Gauguet 1, Walid Chaibi 2, Arnaud Landragin 1
(2010-02-26)

In this paper, we report a new scheme to amplify a microwave signal carried on a laser light at $\lambda$=852nm. The amplification is done via a semiconductor tapered amplifier and this scheme is used to drive stimulated Raman transitions in an atom interferometer. Sideband generation in the amplifier, due to self-phase and amplitude modulation, is investigated and characterized. We also demonstrate that the amplifier does not induce any significant phase-noise on the beating signal. Finally, the degradation of the performances of the interferometer due to the amplification process is shown to be negligible.
1:  Systèmes de Référence Temps Espace (SYRTE)
CNRS : UMR8630 – INSU – Observatoire de Paris – Université Pierre et Marie Curie [UPMC] - Paris VI
2:  Astrophysique Relativiste Théories Expériences Métrologie Instrumentation Signaux (ARTEMIS)
Université Nice Sophia Antipolis [UNS] – CNRS : UMR6162 – Observatoire de la Côte d'Azur – INSU
Physics/Physics/Atomic Physics

Physics/Physics/Optics
laser – phase noise – sideband – semiconductor amplifier – stimulated Raman transition – atom interferometry
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