Chip-based squeezing at a telecom wavelength

Year: 2019

Authors: Mondain F., Lunghi T., Zavatta A., Gouzien E., Doutre F., De Micheli M., Tanzilli S., D’Auria V.

Autors Affiliation: Univ Cote Azur, CNRS, Inst Phys Nice, Parc Valrose, F-06108 Nice 2, France; CNR, INO, Largo Enrico Fermi 6, I-50125 Florence, Italy; Univ Firenze, LENS, I-50019 Florence, Italy; Univ Firenze, Dept Phys, I-50019 Florence, Italy

Abstract: We demonstrate a squeezing experiment exploiting the association of integrated optics and telecom technology as key features for compact, stable, and practical continuous variable quantum optics. In our setup, squeezed light is generated by single-pass spontaneous parametric down conversion on a lithium niobate photonic circuit and detected by a homodyne detector whose interferometric part is directly integrated on the same platform. The remaining parts of the experiment are implemented using commercial plug-and-play devices based on guided-wave technologies. We measure, for a CW pump power of 40 mW, a squeezing level of -2.00 +/- 0.05 dB (anti-squeezing 2.80 +/- 0.05 dB), thus confirming the validity of our approach and opening the way toward miniaturized and easy-to-handle continuous variable-based quantum systems. (C) 2019 Chinese Laser Press


Volume: 7 (7)      Pages from: A36  to: A39

More Information: European Regional Development Fund (ERDF) (Optimal); Agence Nationale de la Recherche (ANR) (ANR-14-CE32-0019, ANR-15-IDEX-01, ANR-17-CE30-0006-01, PN-II-ID-JRPRO-FR-2014-0013).
DOI: 10.1364/PRJ.7.000A36

Citations: 45
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