Next Article in Journal
Granular Activated Carbon from Grape Seeds Hydrothermal Char
Previous Article in Journal
Artificial Flora (AF) Optimization Algorithm
Article Menu
Issue 3 (March) cover image

Export Article

Open AccessArticle

Compact 6 dB Two-Color Continuous Variable Entangled Source Based on a Single Ring Optical Resonator

1,2, 1,2 and 1,2,*
1
State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Opto-Electronics, Shanxi University, Taiyuan 030006, China
2
Collaborative Innovation Centre of Extreme Optics, Shanxi University, Taiyuan 030006, China
*
Author to whom correspondence should be addressed.
Appl. Sci. 2018, 8(3), 330; https://doi.org/10.3390/app8030330
Received: 26 January 2018 / Revised: 22 February 2018 / Accepted: 24 February 2018 / Published: 26 February 2018
(This article belongs to the Section Optics and Lasers)
  |  
PDF [1569 KB, uploaded 27 February 2018]
  |  

Abstract

Continuous-variable entangled optical beams at the degenerate wavelength of 0.8 μm or 1.5 μm have been investigated extensively, but separately. The two-color entangled states of these two useful wavelengths, with sufficiently high degrees of entanglement, still lag behind. In this work, we analyze the various limiting factors that affect the entanglement degree. On the basis of this, we successfully achieve 6 dB of two-color quadrature entangled light beams by improving the escape efficiency of the nondegenerate optical amplifier, the stability of the phase-locking servo system, and the detection efficiency. Our entangled source is constructed only from a single ring optical resonator, and thus is highly compact, which is suitable for applications in long-distance quantum communication networks. View Full-Text
Keywords: quantum optics; continuous variable entangled states; nondegenerate optical parametric amplifier quantum optics; continuous variable entangled states; nondegenerate optical parametric amplifier
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Wang, N.; Du, S.; Li, Y. Compact 6 dB Two-Color Continuous Variable Entangled Source Based on a Single Ring Optical Resonator. Appl. Sci. 2018, 8, 330.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Appl. Sci. EISSN 2076-3417 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top