光纤通信波段强度差压缩态光场的实验制备
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摘要
强度差压缩态光场是指两束光场的强度差起伏低于对应量子噪声极限的非经典光场,由于其两束子模具有较强的强度关联而被用于量子成像、量子随机数产生技术中,此外,又由于其光场强度远高于压缩态光场、纠缠态光场等非经典光场而被广泛用于量子高灵敏测量中。本文利用运转于阈值以上的非简并光学参量振荡器制备了1.3μm强度差压缩态光场,它作为一种双色关联光场可以为制备多色纠缠态光场以及开展量子计算奠定基础。
Because of the two sub-modes possessing strong quantum correlation,intensity difference squeezed state of light is utilized in quantum imaging and quantum random number generation technique.Moreover,it is widely used in quantum high sensitivity measurement due to its higher intensity than that of other nonclassical optical states like squeezing and entanglement.In this paper,an intensity difference squeezed state of light at wavelength of 1.3μm has been generated by a non-degenerate optical parametric oscillator.As a kind of two-color correlated optical state,it can be applied in generation of multi-color entanglement and pave the way to quantum computation.
Because of the two sub-modes possessing strong quantum correlation,intensity difference squeezed state of light is utilized in quantum imaging and quantum random number generation technique.Moreover,it is widely used in quantum high sensitivity measurement due to its higher intensity than that of other nonclassical optical states like squeezing and entanglement.In this paper,an intensity difference squeezed state of light at wavelength of 1.3μm has been generated by a non-degenerate optical parametric oscillator.As a kind of two-color correlated optical state,it can be applied in generation of multi-color entanglement and pave the way to quantum computation.
引文
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[30]Drever R W P,Hall J L,Kowalski F V,et al.Laser Phase and Frequency Stabilization Using an Optical Resonator[J].Appl Phys B,1983,31:97.10.1007/BF00702605.
[31]Qin J L,Yan Z H,Huo M R,et al.Design of Low-noise Photodetector with a Bandwidth of 130 MHz Based on Transimpedance Amplification Circuit[J].Chin Opt Lett,2016,14:122701.DOI:10.3788/COL201614.122701.
[2]Nabors C D,Shelby R M.Two-color Squeezing and Sub-shot-noise Signal Recovery in Doubly Resonant Optical Parametric Oscillators[J].Phys Rev A,1990,42:556.DOI:10.1103/PhysRevA.42.556.
[3]Kennedy T A B.Quantum Theory of Cross-phase-modulational Instability:Twin-beam Correlation in aχ(3)Process[J].Phys Rev A,1991,44:2113.DOI:10.1103/PhysRevA.44.2113.
[4]Brida G,Genovese M,Ruo I.Berchera,Experimental Realization of Sub-shot-noise Quantum Imaging[J].Nat Photon,2010,4:227.DOI:10.1038/NPHOTON.2010.29.
[5]Lunghi T,Brask J B,Lim C C W,et al.Self-testing Quantum Random Number Generator[J].Phys Rev Lett,2015,114:150501.DOI:10.1103/PhysRevLett.114.150501.
[6]Zhang Q,Deng X W,Tian C X,et al.Quantum Random Number Generator Based on Twin Beams[J].Opt Lett,2017,42:895.DOI:10.1364/OL.42.000895.
[7]Wang H,Zhang Y,Pan Q,et al.Experimental Realization of a Quantum Measurement for Intensity Difference Fluctuation Using a Beam Splitter[J].Phys Rev Lett,1999,82:1414.DOI:10.1103/PhysRevLett.82.1414.
[8]Jing J,Feng S,Bloomer R,et al.Experimental Continuous-variable Entanglement from a Phase-difference-locked Optical Parametric Oscillator[J].Phys Rev A,2006,74:041804.DOI:10.1103/PhysRevA.74.041804.
[9]Villar A S,Cruz L S,Cassemiro K N,et al.Generation of Bright Two-Color Continuous Variable Entanglement[J].Phys Rev Lett,2005,95:243603.DOI:10.1103/PhysRevLett.95.243603.
[10]Su X L,Tan A H,Jia X J,et al.Experimental Demonstration of Quantum Entanglement between Frequency-nondegenerate Optical Twin Beams[J].Opt Lett,2006,31:1133.DOI:10.1364/OL.31.001133.
[11]Li Y,Guo X,Bai Z,et al.Generation of Two-color Continuous Variable Quantum Entanglement at 0.8and 1.5μm[J].Appl Phys Lett,2010,97:031107.DOI:10.1063/1.3467045.
[12]Coelho A S,Barbosa F A S,Cassemiro K N,et al.Three-Color Entanglement[J].Science,2009,326:823.DOI:10.1126/science.1178683.
[13]Jia X J,Yan Z H,Duan Z Y,et al.Experimental Realization of Three-Color Entanglement at Optical Fiber Communication and Atomic Storage Wavelengths[J].Phys Rev Lett,2012,109:253604.DOI:10.1103/PhysRevLett.109.253604.
[14]Villar A S,Martinelli M,Fabre C,et al.Direct Production of Tripartite Pump-Signal-Idler Entanglement in the AboveThreshold Optical Parametric Oscillator[J].Phys Rev Lett,2006,97:140504.DOI:10.1103/PhysRevLett.97.140504.
[15]Bachor H A,Ralph T C.A Guide to Experiments in Quantum Optics(Wiley VCH Verlag GmbH&Co.KGaA,2004)[M].p.258.
[16]Hou F Y,Yu L,Jia X J,et al.Experimental Generation of Optical Non-classical States of Light with 1.34μm Wavelength[J].Eur Phys J D,2011,62:433.DOI:10.1140/epjd/e2011-20036-1.
[17]Zheng Y H,Wu Z Q,Huo M R,et al.Generation of a Continuous-wave Squeezed Vacuum State at 1.3μm by Employing a Home-made All-solid-state Laser as Pump Source[J].Chin Phys B,2013,22:094206.DOI:10.1088/1674-1056/22/9/094206.
[18]邬志强,周海军,王雅君,等.利用自制的单频激光器获得近通讯波段正交振幅压缩态光场[J].量子光学学报,2013,19:1-5.DOI:10.3788/ASQO20131901.0001.
[19]Huo M R,Qin J L,Yan Z H,et al.Generation of Two Types of Nonclassical Optical States Using an Optical Parametric Oscillator with a PPKTP Crystal[J].Appl Phys Lett,2016,109:221101.DOI:10.1063/1.4968801.
[20]张云.强度差压缩光的应用及量子信息中非经典光场的产生[D].太原:山西大学,2000:24.
[21]Heidmann A,Horowicz R J,Reynaud S,et al.Observation of Quantum Noise Reduction on Twin Laser Beams[J].Phys Rev Lett,1987,59:2555.DOI:10.1103/PhysRevLett.59.2555.
[22]Pooser R C,Marino A M,Boyer V,et al.Quantum Correlated Light Beams from Nondegenerate Four-wave Mixing in an Atomic Vapor:the D1and D2Lines of 85Rb and 87Rb[J].Opt Express,2009,17:16722.DOI:10.1364/OE.17.016722.
[23]Gao J R,Cui F Y,Xue C Y,et al.Generation and Application of Twin Beams from an Optical Parametric Oscillator Including an a-cut KTP Crystal[J].Opt Lett,1998,23:870.DOI:10.1364/OL.23.000870.
[24]Zheng Y H,Wang Y J,Xie C D,et al.Single-Frequency Nd:YVO4Laser at 671nm With High-Output Power of 2.8W[J].IEEE J Quantum Electron,2012,48:67.DOI:10.1088/1674-1056/22/9/094206.
[25]Drever R W P,Hall J L,Kowalski F V,et al.Fine Tuning of a Triply Resonant OPO for Generating Frequency Degenerate CV Entangled Beams at Low Pump Powers[J].Appl Phys B,1983,31:97.DOI:10.1007/s00340-008-2986-6.
[26]Longchambon L,Laurat J,Coudreaua T,et al.Non-linear and Quantum Optics of a TypeⅡOPO Containing a Birefringent Element[J].Eur Phys J D,2004,30:279-285.DOI:10.1140/epjd/e2004-00090-6.
[27]Ma Y H,Mu Q X,Yang G H,et al.Enhanced Continuous-variable Entanglement by a Self-phase-locked Type-ⅡOptical Parameter Oscillator with Feedback Loops[J].J Phys B:At Mol Opt Phys,2008,41:215502.DOI:10.1088/0953-4075/41/21/215502.
[28]Keller G,D’Auria V,Treps N,et al.Experimental Demonstration of Frequency-degenerate Bright EPR Beams with a Self-phase-locked OPO[J].Opt Express,2008,16:9351.DOI:10.1364/OE.16.009351.
[29]Laurat J,Coudreau T,Keller G,et al.Effects of Mode Coupling on the Generation of Quadrature Einstein-PodolskyRosen Entanglement in a Type-ⅡOptical Parametric Oscillator below Threshold[J].Phys Rev A,2005,71:022313.DOI:10.1103/PhysRevA.71.022313.
[30]Drever R W P,Hall J L,Kowalski F V,et al.Laser Phase and Frequency Stabilization Using an Optical Resonator[J].Appl Phys B,1983,31:97.10.1007/BF00702605.
[31]Qin J L,Yan Z H,Huo M R,et al.Design of Low-noise Photodetector with a Bandwidth of 130 MHz Based on Transimpedance Amplification Circuit[J].Chin Opt Lett,2016,14:122701.DOI:10.3788/COL201614.122701.