Wide-field SU(1,1) interferometer
Frascella G, Mikhailov EE, Takanashi N, Zakharov RV, Tikhonova OV, Chekhova M (2019)
Publication Type: Journal article
Publication year: 2019
Journal
Book Volume: 6
Pages Range: 1233-1236
Journal Issue: 9
Abstract
An SU(1,1) interferometer uses a sequence of two optical parametric amplifiers for achieving sub-shot-noise sensitivity to a phase shift introduced in between. We present the first realization of a wide-field SU(1,1) interferometer, where the use of a focusing element enables spatially multimode operation within a broad angle. Over this angle, the interference phase is found to be flat. This property is important for the high sensitivity to the phase front disturbance. Further, -4.3 +/- 0.7 dB quadrature squeezing, an essential requirement to the high sensitivity, is experimentally demonstrated for plane-wave modes inside the interferometer. Such an interferometer is useful not only for quantum metrology, but also in remote sensing, enhanced sub-shot-noise imaging, and quantum information processing. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
Authors with CRIS profile
Gaetano Frascella
Lehrstuhl für Experimentalphysik (Optik)
Maria Chekhova
Naturwissenschaftliche Fakultät
Involved external institutions
Lomonosov Moscow State University / Московский государственный университет имени М.В.Ломоносова
Russian Federation (RU)
University of Tokyo
Japan (JP)
College of William & Mary
United States (USA) (US)
Russian Federation (RU)
University of Tokyo
Japan (JP)
College of William & Mary
United States (USA) (US)
How to cite
APA:
Frascella, G., Mikhailov, E.E., Takanashi, N., Zakharov, R.V., Tikhonova, O.V., & Chekhova, M. (2019). Wide-field SU(1,1) interferometer. Optica, 6(9), 1233-1236. https://dx.doi.org/10.1364/OPTICA.6.001233
MLA:
Frascella, Gaetano, et al. "Wide-field SU(1,1) interferometer." Optica 6.9 (2019): 1233-1236.
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