Multimode single-pass spatio-temporal squeezing - Sorbonne Université
Journal Articles Optics Express Year : 2020

Multimode single-pass spatio-temporal squeezing

Abstract

We present a single-pass source of broadband multimode squeezed light with potential application in quantum information and quantum metrology. The source is based on a type I parametric down-conversion (PDC) process inside a bulk nonlinear crystal in a non-collinear configuration. The generated squeezed light exhibits a spatio-temporal multimode behavior that is probed using a homodyne measurement with a local oscillator shaped both spatially and temporally. Finally we follow a covariance matrix based approach to reveal the distribution of the squeezing among several independent temporal and spatial modes. This unambiguously validates the multimode feature of our source.
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Dates and versions

hal-02558509 , version 1 (29-04-2020)

Identifiers

Cite

Luca La Volpe, Syamsundar De, Tiphaine Kouadou, Dmitri B. Horoshko, Mikhail I. Kolobov, et al.. Multimode single-pass spatio-temporal squeezing. Optics Express, 2020, 28 (8), pp.12385. ⟨10.1364/OE.386528⟩. ⟨hal-02558509⟩
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