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Bright squeezed vacuum in a nonlinear interferometer: Frequency and temporal Schmidt-mode description

Sharapova PR, Tikhonova O, Lemieux S, Boyd RW, Chekhova MV (2018)

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Publication Type: Journal article

Publication year: 2018

Journal

Book Volume: 97

Article Number: 053827

Journal Issue: 5

DOI: 10.1103/PhysRevA.97.053827

Abstract

Control over the spectral properties of the bright squeezed vacuum (BSV), a highly multimode nonclassical macroscopic state of light that can be generated through high-gain parametric down conversion, is crucial for many applications. In particular, in several recent experiments BSV is generated in a strongly pumped SU(1,1) interferometer to achieve phase supersensitivity, perform broadband homodyne detection, or tailor the frequency spectrum of squeezed light. In this work, we present an analytical approach to the theoretical description of BSV in the frequency domain based on the Bloch-Messiah reduction and the Schmidt-mode formalism. As a special case we consider a strongly pumped SU(1,1) interferometer. We show that different moments of the radiation at its output depend on the phase, dispersion, and the parametric gain in a nontrivial way, thereby providing additional insights on the capabilities of nonlinear interferometers. In particular, a dramatic change in the spectrum occurs as the parametric gain increases.

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APA:

Sharapova, P.R., Tikhonova, O., Lemieux, S., Boyd, R.W., & Chekhova, M.V. (2018). Bright squeezed vacuum in a nonlinear interferometer: Frequency and temporal Schmidt-mode description. Physical Review A, 97(5). https://doi.org/10.1103/PhysRevA.97.053827

MLA:

Sharapova, P. R., et al. "Bright squeezed vacuum in a nonlinear interferometer: Frequency and temporal Schmidt-mode description." Physical Review A 97.5 (2018).

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