Generation of tripartite quantum correlation among amplitude-squeezed beams by frequency doubling in a singly resonant cavity

Tingyu Li, Ryohei Mitazaki, Katsuyuki Kasai, Yoshiko Okada-Shudo, Masayoshi Watanabe, and Yun Zhang
Phys. Rev. A 91, 023833 – Published 26 February 2015

Abstract

We present a technique for generation of tripartite quantum-correlated amplitude-squeezed light beams, using frequency doubling in a singly resonant cavity with two output ports. The two-output second-harmonic (SH) beams are both nonlinearly coupled to the common fundamental beam even though they have no direct interaction. The nonlinear coupling produces noise reduction of amplitude for each beam and quantum correlations among three beams. In our first experiment, we measured amplitude squeezing of 0.5, 0.8, and 0.6 dB for the fundamental beam and two output SH beams, respectively. Meanwhile, quantum correlation of 0.6 dB between the two amplitude-squeezed SH beams and quantum anticorrelation of 0.6 and 0.8 dB between the squeezed fundamental beam and each of the SH beams were observed around the range of optimum conversion efficiency. This opens an alternate way to produce tripartite-quantum-correlated systems.

  • Figure
  • Figure
  • Figure
  • Received 15 October 2014

DOI:https://doi.org/10.1103/PhysRevA.91.023833

©2015 American Physical Society

Authors & Affiliations

Tingyu Li1, Ryohei Mitazaki2, Katsuyuki Kasai3, Yoshiko Okada-Shudo2, Masayoshi Watanabe2, and Yun Zhang2,*

  • 1College of Information Engineering, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China
  • 2Department of Engineering Science, The University of Electro-Communications, 1-5-1 Chofugaoka, Chofu-shi, Tokyo 182-8585, Japan
  • 3Advanced ICT Research Institute, National Institute of Information and Communications Technology, 588-2, Iwaoka, Nishi-ku, Kobe, Hyogo 651-2492, Japan

  • *zhang@ee.uec.ac.jp

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 91, Iss. 2 — February 2015

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review A

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×