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Opt Express. 2008 Oct 27;16(22):17609-15.

Polarization preserving ultra fast optical shutter for quantum information processing.

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  • 1Dipartimento di Fisica dell'Universit√° La Sapienza and Consorzio Nazionale, Interuniversitario per le Scienze Fisiche della Materia, Roma 00185, Italy.


We present the realization of a ultra fast shutter for optical fields, which allows to preserve a generic polarization state, based on a self-stabilized interferometer. It exhibits high (or low) transmittivity when turned on (or inactive), while the fidelity of the polarization state is high. The shutter is realized through two beam displacing prisms and a longitudinal Pockels cell. This can represent a useful tool for controlling light-atom interfaces in quantum information processing.

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