Demonstration of a quantum-enhanced fiber Sagnac interferometer

被引:37
|
作者
Mehmet, Moritz [1 ,2 ,3 ]
Eberle, Tobias [1 ,2 ,3 ]
Steinlechner, Sebastian [1 ,2 ]
Vahlbruch, Henning [1 ,2 ]
Schnabel, Roman [1 ,2 ]
机构
[1] Leibniz Univ Hannover, Max Planck Inst Gravitat Phys, Albert Einstein Inst, D-30167 Hannover, Germany
[2] Leibniz Univ Hannover, Inst Gravitat Phys, D-30167 Hannover, Germany
[3] Leibniz Univ Hannover, Ctr Quantum Engn & Space Time Res QUEST, D-30167 Hannover, Germany
关键词
RECYCLED MICHELSON INTERFEROMETER; SQUEEZED-LIGHT; NOISE;
D O I
10.1364/OL.35.001665
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
The injection of squeezed light can be used to improve the sensitivity of an interferometer beyond the limit imposed by the zero-point fluctuation of the electromagnetic field. Here, we report on the realization of such a quantum-enhanced interferometer with a fiber-based Sagnac topology. Continuous wave squeezed states at 1550 nm with a noise reduction of 6.4 dB below shot noise were produced by type I optical parametric amplification and subsequently injected into the dark port of the interferometer. A reduction of the interferometer shot noise by 4.5 dB was observed, and the enhancement of the signal-to-noise ratio for a phase modulation signal generated within the interferometer could be demonstrated. We achieved a 95% fiber transmission for the squeezed states, which suggests that corresponding fiber-based quantum metrology and communication systems are feasible. (C) 2010 Optical Society of America
引用
收藏
页码:1665 / 1667
页数:3
相关论文
共 50 条
  • [31] A Quantum-Enhanced Radar Prototype
    Luong, David
    Damini, Anthony
    Balaji, Bhashyam
    Chang, C. W. Sandbo
    Vadiraj, A. M.
    Wilson, Christopher
    2019 IEEE RADAR CONFERENCE (RADARCONF), 2019,
  • [32] Quantum-enhanced filter: QFilter
    Parfait Atchade-Adelomou
    Guillermo Alonso-Linaje
    Soft Computing, 2022, 26 : 7167 - 7174
  • [33] Quantum-enhanced plasmonic sensing
    Dowran, Mohammadjavad
    Kumar, Ashok
    Lawrie, Benjamin J.
    Pooser, Raphael C.
    Marino, Alberto M.
    OPTICA, 2018, 5 (05): : 628 - 633
  • [34] Quantum-enhanced filter: QFilter
    Atchade-Adelomou, Parfait
    Alonso-Linaje, Guillermo
    SOFT COMPUTING, 2022, 26 (15) : 7167 - 7174
  • [35] Sensitivity of Quantum-Enhanced Interferometers
    Salykina, Dariya
    Khalili, Farid
    SYMMETRY-BASEL, 2023, 15 (03):
  • [36] Quantum-Enhanced Transmittance Sensing
    Gong, Zihao
    Rodriguez, Nathaniel
    Gagatsos, Christos N.
    Guha, Saikat
    Bash, Boulat A.
    IEEE JOURNAL OF SELECTED TOPICS IN SIGNAL PROCESSING, 2023, 17 (02) : 473 - 490
  • [37] Quantum-enhanced absorption refrigerators
    Luis A. Correa
    José P. Palao
    Daniel Alonso
    Gerardo Adesso
    Scientific Reports, 4
  • [38] Quantum-enhanced Doppler lidar
    Maximilian Reichert
    Roberto Di Candia
    Moe Z. Win
    Mikel Sanz
    npj Quantum Information, 8
  • [39] Quantum-Enhanced Pattern Recognition
    Ortolano G.
    Napoli C.
    Harney C.
    Pirandola S.
    Leonetti G.
    Boucher P.
    Losero E.
    Genovese M.
    Ruo-Berchera I.
    Physical Review Applied, 2023, 20 (02)
  • [40] Quantum-enhanced Doppler lidar
    Reichert, Maximilian
    Di Candia, Roberto
    Win, Moe Z.
    Sanz, Mikel
    NPJ QUANTUM INFORMATION, 2022, 8 (01)