Journals Articles Conferences News About CLP
Submit a paper Email Alert
Search
Search
Articles
Journals
News
Advanced Search
Top Searches
2D MaterialsTransformation opticsQuantum PhotonicsSmall lasersSemiconductor UV PhotonicsSupersymmetric microring laser arrays

Laser & Optoelectronics Progress, Volume. 56, Issue 4, 043002(2019)

Property of Entangled Photon Pairs Generated via Spontaneous Parametric Down Conversion

Yuanyuan Song1, Ding Chen2, and Shuang Cong1、*
Author Affiliations
  • 1 Department of Automation, University of Science and Technology of China, Hefei, Anhui 230027, China
  • 2 State Key Laboratory of Space-Ground Integrated Information Technology, Beijing Institute of Satellite Information Engineering, Beijing 100086, China
    • show less
    AbstractGet PDF(in Chinese)
    Figures&Tables (9)
    Equations (0)
    References (24)
    Tools
    Paper Information
    Topics
    Figures & Tables(9)
    Schematic of experimental device for generation of entangled photon pairs via type-II spontaneous parametric down conversion. (a) Collinear matching; (b) non-collinear matching

    Fig. 1. Schematic of experimental device for generation of entangled photon pairs via type-II spontaneous parametric down conversion. (a) Collinear matching; (b) non-collinear matching

    Download full size
    Illustration of type-II SPDC light field

    Fig. 2. Illustration of type-II SPDC light field

    Download full size
    Single photon spectra of signal light (s) and idle light (i) under different parameters. (a) Ω>0; (b) Ω<0; (c) D+≠0; (d) D+=0

    Fig. 3. Single photon spectra of signal light (s) and idle light (i) under different parameters. (a) Ω>0; (b) Ω<0; (c) D+≠0; (d) D+=0

    Download full size
    Source function graphs when continuous light used as pump. (a1) (a2) 3D and 2D plots of phase matching function; (b1) (b2) 3D and 2D plots of pumping linear function; (c1) (c2) 3D and 2D plots of combined spectral function; (d) single photon spectra

    Fig. 4. Source function graphs when continuous light used as pump. (a1) (a2) 3D and 2D plots of phase matching function; (b1) (b2) 3D and 2D plots of pumping linear function; (c1) (c2) 3D and 2D plots of combined spectral function; (d) single photon spectra

    Download full size
    3D plots of pumping linear functions, 3D plots and 2D plots of combined spectral functions, single photon spectra under different spectral widths of pulsed laser. (a1) (b1) (c1) (d1) σp=0.5 nm; (a2) (b2) (c2) (d2) σp=2 nm; (a3) (b3) (c3) (d3) σp=5 nm

    Fig. 5. 3D plots of pumping linear functions, 3D plots and 2D plots of combined spectral functions, single photon spectra under different spectral widths of pulsed laser. (a1) (b1) (c1) (d1) σp=0.5 nm; (a2) (b2) (c2) (d2) σp=2 nm; (a3) (b3) (c3) (d3) σp=5 nm

    Download full size
    3D plots of pumping linear functions, 3D plots of phase matching functions, 3D plots and 2D plots of combined spectral functions, single photon spectra under different crystal thicknesses. (a) σp=1 nm; (b1) (c1) (d1) (e1) L=0.5 nm; (b2) (c2) (d2) (e2) L=1 mm; (b3) (c3) (d3) (e3) L=3 mm

    Fig. 6. 3D plots of pumping linear functions, 3D plots of phase matching functions, 3D plots and 2D plots of combined spectral functions, single photon spectra under different crystal thicknesses. (a) σp=1 nm; (b1) (c1) (d1) (e1) L=0.5 nm; (b2) (c2) (d2) (e2) L=1 mm; (b3) (c3) (d3) (e3) L=3 mm

    Download full size
    Combined two-photon spectra under different frequency correlation. (a) Non-correlation; (b) positive correlation

    Fig. 7. Combined two-photon spectra under different frequency correlation. (a) Non-correlation; (b) positive correlation

    Download full size

    • Table 1. Frequency entanglement and interference visibility under different spectral widths of pulsed laser

      View table

      Table 1. Frequency entanglement and interference visibility under different spectral widths of pulsed laser

      σp /nmΔνc /THzΔνs /THzRV
      0.50.675.868.750.96
      21.136.946.140.77
      52.2612.585.570.69

    • Table 2. Frequency entanglement and interference visibility under different crystal thicknesses

      View table

      Table 2. Frequency entanglement and interference visibility under different crystal thicknesses

      L /mmΔνc /THzΔνs /THzRV
      0.51.7411.206.440.99
      10.916.427.050.84
      30.292.528.690.58
    Tools

    Get Citation

    Copy Citation Text

    Yuanyuan Song, Ding Chen, Shuang Cong. Property of Entangled Photon Pairs Generated via Spontaneous Parametric Down Conversion[J]. Laser & Optoelectronics Progress, 2019, 56(4): 043002

    Download Citation

    EndNote(RIS)BibTexPlain Text
    Set citation alerts for article
    Save article for my favorites
    Paper Information

    Category: Spectroscopy

    Received: Jul. 6, 2018

    Accepted: Sep. 4, 2018

    Published Online: Jul. 31, 2019

    The Author Email: Shuang Cong (scong@ustc.edu.cn)

    DOI:10.3788/LOP56.043002

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology