High-visibility two-photon interference in femtosecond pulse pumped type-II SPDC

  • Yoon-Ho Kim
  • Maria V. Chekhova
  • Sergei P. Kulik
  • Morton H. Rubin
  • Yanhua Shih

Abstract

By far the most efficient source of two-particle entangled state is spontaneous parametric down-conversion (SPDC). Especially, cw laser pumped type-II SPDC has been widely treated as a good source of entangled photon pairs, since one can easily prepare a polarization Bell state [1]. However, femtosecond pulse pumped type-II SPDC shows poor quantum interference visibility when a thick crystal is used. To restore the visibility, one has to use narrow-band spectral filters at the expense of available photon flux.

Keywords

Coherence Expense Convolution 

References and links

  1. 1.
    Y.H. Shih and A.V. Sergienko, Phys. Lett. A 186, 29 (1994); Phys. Lett. A 191, 201 (1994); P.G. Kwiat et al. Phys. Rev. Lett. 75, 4337 (1995).ADSCrossRefGoogle Scholar
  2. 2.
    Y.-H. Kim, S.P. Kulik, and Y.H. Shih, Phys. Rev. A 62, 011802(R) (2000).ADSCrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 2003

Authors and Affiliations

  • Yoon-Ho Kim
    • 1
  • Maria V. Chekhova
    • 1
  • Sergei P. Kulik
    • 1
  • Morton H. Rubin
    • 1
  • Yanhua Shih
    • 1
  1. 1.Department of PhysicsUniversity of MarylandBaltimore

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