Multimode optical parametric amplification in the phase-sensitive regime
Frascella G, Zakharov RV, Tikhonova OV, Chekhova M (2021)
Publication Type: Journal article
Publication year: 2021
Journal
Book Volume: 46
Pages Range: 2364-2367
Journal Issue: 10
DOI: 10.1364/OL.422876
Abstract
Phase-sensitive optical parametric amplification of squeezed states helps to overcome detection loss and noise and thus increases the robustness of sub-shot-noise sensing. Because such techniques, e.g., imaging and spectroscopy, operate with multimode light, multimode amplification is required. Here we find the optimal methods for multimode phase-sensitive amplification and verify them in an experiment where a pumped second-order nonlinear crystal is seeded with a Gaussian coherent beam. Phase-sensitive amplification is obtained by tightly focusing the seed into the crystal, rather than seeding with close-to-plane waves. This suggests that phase-sensitive amplification of sub-shot-noise images should be performed in the near field. A similar recipe can be formulated for the time and frequency, which makes this work relevant for quantum-enhanced spectroscopy.
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Russian Federation (RU)How to cite
APA:
Frascella, G., Zakharov, R.V., Tikhonova, O.V., & Chekhova, M. (2021). Multimode optical parametric amplification in the phase-sensitive regime. Optics Letters, 46(10), 2364-2367. https://doi.org/10.1364/OL.422876
MLA:
Frascella, Gaetano, et al. "Multimode optical parametric amplification in the phase-sensitive regime." Optics Letters 46.10 (2021): 2364-2367.
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