Laser Physics

, 17:559

Polarization squeezing with photonic crystal fibers

  • J. Milanovic
  • J. Heersink
  • Ch. Marquardt
  • A. Huck
  • U. L. Andersen
  • G. Leuchs
Quantum Information and Quantum Computation

DOI: 10.1134/S1054660X07040408

Cite this article as:
Milanovic, J., Heersink, J., Marquardt, C. et al. Laser Phys. (2007) 17: 559. doi:10.1134/S1054660X07040408

Abstracts

We report on the generation of polarization squeezing by employing intense, ultrashort light pulses in a single pass method in photonic crystal fibers. We investigated the squeezing behavior near the zero-dispersion wavelength and in the anomalous dispersion regime by using two distinct fibers. We observed a maximal squeezing at 810 nm of −3.3 ± 0.3 dB with an excess noise of +16.8 ± 0.3 dB in the anomalous regime. Correcting for linear and interference losses between the polarization modes, this corresponds to −6 ± 1 dB. The ratio of squeezing to excess noise indicates the creation of a much purer state; this ratio indeed lies an order of magnitude below those squeezing experiments that exploit traditional fibers [1]. We attribute this increased state of purity to increased effective nonlinearity and to the reduction of scattering on acoustic modes in the fiber.

PACS numbers

42.50.Lc 42.50.Dv 42.50.Ar 42.65.Hw 42.81.Gs 

Copyright information

© MAIK “Nauka/Interperiodica” 2007

Authors and Affiliations

  • J. Milanovic
    • 1
  • J. Heersink
    • 1
  • Ch. Marquardt
    • 1
  • A. Huck
    • 1
    • 2
  • U. L. Andersen
    • 1
    • 2
  • G. Leuchs
    • 1
  1. 1.Institut für Optik, Information und Photonik, Max-Planck ForschungsgruppeUniversität Erlangen-NürnbergErlangenGermany
  2. 2.Department of PhysicsTechnical University of DenmarkFysikvej, Kgs. LyngbyDenmark

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