Inversionless gain via six-wave mixing and the investigation of distributed feedback

In the present paper, we investigate the spectral-line enhancement of a coherently driven treble-Λ type atomic system. The numerical results show that the amplitudes and the amplification region of probe fields can be all-optically manipulated by modulating the detunings and intensities of coupling...

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Bibliographic Details
Published inPhysics letters. A Vol. 381; no. 18; pp. 1620 - 1623
Main Authors Yang, Hong, Zhang, Ting-Gui, Zou, Xu, Zhang, Yan
Format Journal Article
LanguageEnglish
Published Elsevier B.V 10.05.2017
Subjects
Distributed feedback
Inversionless gain
Six-wave mixing
Inversionless gain
Distributed feedback
Six-wave mixing
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Summary:In the present paper, we investigate the spectral-line enhancement of a coherently driven treble-Λ type atomic system. The numerical results show that the amplitudes and the amplification region of probe fields can be all-optically manipulated by modulating the detunings and intensities of coupling fields. In this case, we trap the cold atoms of treble-Λ type in a one-dimensional optical lattice to study the intensity envelopes by the modulation of gain or simultaneous modulation of gain and index. •There are three advantages in this model.•Firstly, it can simultaneously control the three-color probe fields.•Secondly, it allows synchronous nonlinear manipulation of treble-light signals at one network node.•Thirdly, it can be realized distributed feedback lasers.
ISSN:0375-9601
1873-2429
DOI:10.1016/j.physleta.2017.02.047