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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 14 — Jul. 7, 2008
  • pp: 10650–16657

Observation of quadrature squeezing in a χ (2) nonlinear waveguide using a temporally shaped local oscillator pulse

Yujiro Eto, Takashi Tajima, Yun Zhang, and Takuya Hirano  »View Author Affiliations

Optics Express, Vol. 16, Issue 14, pp. 10650-16657 (2008)

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We report on the generation of quadrature squeezed light at 1.535 µm via single-pass optical parametric amplification in a periodically poled MgO:LiNbO3 waveguide, and detection with a temporally shaped local oscillator. Squeezing of -4.1 dB was directly measured using the shaped local oscillator. Classical parametric gain of the shaped pulse was also investigated; a deamplification gain of -12.1 dB was observed with the amplification gain of only +13.8 dB. We experimentally show that the use of shaped pulse as local oscillator in homodyne detection allows us efficient squeezing detection with near-unit mode-matching efficiency.

© 2008 Optical Society of America

OCIS Codes
(120.2920) Instrumentation, measurement, and metrology : Homodyning
(270.6570) Quantum optics : Squeezed states

ToC Category:
Quantum Optics

Original Manuscript: May 19, 2008
Revised Manuscript: June 27, 2008
Manuscript Accepted: June 28, 2008
Published: July 1, 2008

Yujiro Eto, Takashi Tajima, Yun Zhang, and Takuya Hirano, "Observation of quadrature squeezing in a ?(2) nonlinear waveguide using a temporally shaped local oscillator pulse," Opt. Express 16, 10650-16657 (2008)

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