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Journal of Modern Optics Volume 65, 2018 - Issue 2
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Articles

Entanglement analyses of a nondegenerate optical parametric oscillator with a higher-transmissivity cavity mirror

Dong WangSchool of Mathematics and Physics, Anhui University of Technology, Maanshan, China
,
Shuhong HaoSchool of Mathematics and Physics, Anhui University of Technology, Maanshan, ChinaCorrespondence[email protected]
,
Lixu XieSchool of Management Science and Engineering, Anhui University of Technology, Maanshan, China
&
Xianshan HuangSchool of Mathematics and Physics, Anhui University of Technology, Maanshan, China
Pages 200-205 | Received 17 Apr 2017, Accepted 03 Sep 2017, Published online: 06 Oct 2017
 
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Abstract

Nondegenerate optical parametric oscillator (NOPO) above threshold is a simple set-up to generate entangled beams. To more accurately calculate the entanglement between the generated twin beams from the NOPO, we use the Langevin equations for the NOPO with a higher-transmissivity cavity mirror. The obtained new expressions for the amplitude-difference and phase-sum noise spectra suggest that increasing the transmissivity of the output mirror can enhance the entanglement beyond the previous expectation.

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