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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 24 — Nov. 21, 2011
  • pp: 24434–24447

Generation of degenerate, factorizable, pulsed squeezed light at telecom wavelengths

Thomas Gerrits, Martin J. Stevens, Burm Baek, Brice Calkins, Adriana Lita, Scott Glancy, Emanuel Knill, Sae Woo Nam, Richard P. Mirin, Robert H. Hadfield, Ryan S. Bennink, Warren P. Grice, Sander Dorenbos, Tony Zijlstra, Teun Klapwijk, and Val Zwiller  »View Author Affiliations

Optics Express, Vol. 19, Issue 24, pp. 24434-24447 (2011)

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We characterize a periodically poled KTP crystal that produces an entangled, two-mode, squeezed state with orthogonal polarizations, nearly identical, factorizable frequency modes, and few photons in unwanted frequency modes. We focus the pump beam to create a nearly circular joint spectral probability distribution between the two modes. After disentangling the two modes, we observe Hong-Ou-Mandel interference with a raw (background corrected) visibility of 86% (95%) when an 8.6 nm bandwidth spectral filter is applied. We measure second order photon correlations of the entangled and disentangled squeezed states with both superconducting nanowire single-photon detectors and photon-number-resolving transition-edge sensors. Both methods agree and verify that the detected modes contain the desired photon number distributions.

© 2011 OSA

OCIS Codes
(270.0270) Quantum optics : Quantum optics
(270.5290) Quantum optics : Photon statistics
(270.5570) Quantum optics : Quantum detectors
(270.6570) Quantum optics : Squeezed states
(270.5585) Quantum optics : Quantum information and processing

ToC Category:
Quantum Optics

Original Manuscript: August 3, 2011
Revised Manuscript: October 25, 2011
Manuscript Accepted: October 27, 2011
Published: November 15, 2011

Thomas Gerrits, Martin J. Stevens, Burm Baek, Brice Calkins, Adriana Lita, Scott Glancy, Emanuel Knill, Sae Woo Nam, Richard P. Mirin, Robert H. Hadfield, Ryan S. Bennink, Warren P. Grice, Sander Dorenbos, Tony Zijlstra, Teun Klapwijk, and Val Zwiller, "Generation of degenerate, factorizable, pulsed squeezed light at telecom wavelengths," Opt. Express 19, 24434-24447 (2011)

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