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      Single-mode quadrature squeezing using dual-pump four-wave mixing in an integrated nanophotonic device

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          Abstract

          We report the generation of broadband single-mode (degenerate) quadrature squeezed vacuum from an integrated nanophotonic device based on two coupled silicon nitride microring resonators. Dual-pump spontaneous four-wave mixing in one microring resonator is exploited to generate squeezed light, while unwanted single-pump parametric fluorescence and Bragg-scattering four-wave mixing processes are suppressed by selectively corrupting individual resonances using a second, auxiliary resonator. Balanced homodyne detection is employed for quadrature measurements, with 1.5 dB of quadrature squeezing directly measured. We infer that approximately 6 dB of squeezing is present on-chip, before collection and detection losses.

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          Author and article information

          Journal
          26 January 2020
          Article
          2001.09474
          9e9d0242-fab1-4440-a245-15eb596a2323

          http://arxiv.org/licenses/nonexclusive-distrib/1.0/

          History
          Custom metadata
          6 pages, 4 figures
          quant-ph

          Quantum physics & Field theory
          Quantum physics & Field theory

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