Generation of continuous-wave broadband entangled beams using periodically poled lithium niobate waveguides

Ken Ichiro Yoshino, Takao Aoki, Akira Furusawa

研究成果: Article

40 引用 (Scopus)

抜粋

Continuous-wave light beams with broadband quantum entanglement are created with two independent squeezed light beams generated by two periodically poled lithium niobate waveguides and a symmentric beam splitter. The quantum entanglement is confirmed with a sufficient criterion Δ A,B 2 = 〈 [Δ (x A - x B)] 2 〉 + 〈 [Δ (p A + p B)] 2 〉 <1 and the observed Δ A,B 2 is 0.75 over the bandwidth of 30 MHz. Although the bandwidth is limited by that of the detector so far, it would be broadened up to 10 THz which would be only limited by the bandwidth of phase matching for the second-order nonlinear process.

元の言語English
記事番号041111
ジャーナルApplied Physics Letters
90
発行部数4
DOI
出版物ステータスPublished - 2007 2 5
外部発表Yes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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