Highly multimode memory in a crystal

We experimentally demonstrate the storage of 1060 temporal modes onto a thulium-doped crystal using an atomic frequency comb (AFC). The comb covers 0.93 GHz defining the storage bandwidth. As compared to previous AFC preparation methods (pulse sequences i.e. amplitude modulation), we only use freque...

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Bibliographic Details
Published inarXiv.org
Main Authors Bonarota, M, J -L Le Gouët, Chanelière, T
Format Paper Journal Article
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 10.11.2010
Subjects
Amplitude modulation
Doped crystals
Frequency modulation
Laser pumping
Optical pumping
Physics - Quantum Physics
Quantum phenomena
Rare earth elements
Thulium
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Summary:We experimentally demonstrate the storage of 1060 temporal modes onto a thulium-doped crystal using an atomic frequency comb (AFC). The comb covers 0.93 GHz defining the storage bandwidth. As compared to previous AFC preparation methods (pulse sequences i.e. amplitude modulation), we only use frequency modulation to produce the desired optical pumping spectrum. To ensure an accurate spectrally selective optical pumping, the frequency modulated laser is self-locked on the atomic comb. Our approach is general and should be applicable to a wide range of rare-earth doped material in the context of multimode quantum memory.
ISSN:2331-8422
DOI:10.48550/arxiv.1009.2317