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Pré-Publication, Document De Travail Année : 2006

TEM10 homodyne detection as an optimal small displacement and tilt measurements scheme

Résumé

We report an experimental demonstration of optimal measurements of small displacement and tilt of a Gaussian beam - two conjugate variables - involving a homodyne detection with a TEM10 local oscillator. We verify that the standard split detection is only 64% efficient. We also show a displacement measurement beyond the quantum noise limit, using a squeezed vacuum TEM10 mode within the input beam.
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Dates et versions

hal-00087009 , version 1 (20-07-2006)

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Vincent Delaubert, Nicolas Treps, Mikael Lassen, Charles C. Harb, Claude Fabre, et al.. TEM10 homodyne detection as an optimal small displacement and tilt measurements scheme. 2006. ⟨hal-00087009⟩
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