Chip-based squeezing at a telecom wavelength  

作　　者：F.Mondain T.Lunghi A.Zavatta E.Gouzien F.Doutre M.De Micheli S.Tanzilli V.D'Auria 

机构地区：[1]Universite Cote d'Azur,CNRS,Institut de Physique de Nice,Parc Valrose,06108 Nice Cedex 2,France [2]Istituto Nazionale di Ottica (INO-CNR) Largo Enrico Fermi 6,50125 Firenze,Italy [3]LENS and Department of Physics,Universita di Firenze,50019 Sesto Fiorentino,Firenze,Italy

出　　处：《Photonics Research》2019年第7期10-13,共4页光子学研究（英文版）

基　　金：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)

摘　　要：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.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.

关 键 词：SQUEEZING ASSOCIATION single-pass 

分 类 号：O4[理学—物理]