Generation of frequency degenerate twin beams in 85Rb vapor

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Jun Jia
  • Wei Du
  • J. F. Chen
  • Chun-Hua Yuan
  • Weiping Zhang

Detail(s)

Original languageEnglish
Pages (from-to)4024-4027
Journal / PublicationOptics Letters
Volume42
Issue number19
Publication statusPublished - 1 Oct 2017
Externally publishedYes

Abstract

We demonstrate a new phase-matching geometry for four-wave mixing processes in hot 85Rb vapor, in which all four fields propagate in different directions but two of them are degenerate in frequency. When used as a parametric amplifier with an injected seed, two types of quantum mechanically correlated twin-beam states, either frequency degenerate or nondegenerate, can be generated. The quantum noise reduction in the intensity difference is almost 7 dB for the nondegenerate type and nearly 5 dB for the degenerate type. The spatial nondegeneracy of the four waves allows a variety of configurations of parametric processes, leading to flexible control for both phase insensitive and sensitive parametric amplification. The spatially nondegenerate but frequency degenerate four-wave mixing process will find wide applications in quantum metrology, quantum communication, and quantum information of continuous variables.

Bibliographic Note

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Citation Format(s)

Generation of frequency degenerate twin beams in 85Rb vapor. / Jia, Jun; Du, Wei; Chen, J. F. et al.

In: Optics Letters, Vol. 42, No. 19, 01.10.2017, p. 4024-4027.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review