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Kvantovaya Elektronika, 2001, Volume 31, Number 9, Pages 774–780 (Mi qe2043)  

This article is cited in 16 scientific papers (total in 16 papers)

Physical foundations of quantum electronics

On the propagation velocity of a wave packet in an amplifying medium

N. S. Bukhman

Samara State Academy of Architecture and Construction
Abstract: It is shown that the delay time of a weak signal propagating in an amplifying medium on the wings of the spectral amplification line may be shorter than the time of propagation of the signal with the velocity of light in vacuum. It is found that in this case, the time dependence of the signal is exactly 'reconstructed' at the point of detection, and the detection of the signal continues even if it is abruptly terminated at the point of transmission. It is also shown that using the complex time of group delay of the signal, it is possible to improve the accuracy of the results in the first order of dispersion theory within this approximation.
Received: 18.04.2001
English version:
Quantum Electronics, 2001, Volume 31, Issue 9, Pages 774–780
DOI: https://doi.org/10.1070/QE2001v031n09ABEH002043
Bibliographic databases:
Document Type: Article
PACS: 42.25.Bs
Language: Russian


Citation: N. S. Bukhman, “On the propagation velocity of a wave packet in an amplifying medium”, Kvantovaya Elektronika, 31:9 (2001), 774–780 [Quantum Electron., 31:9 (2001), 774–780]
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  • https://www.mathnet.ru/eng/qe/v31/i9/p774
  • This publication is cited in the following 16 articles:
    Citing articles in Google Scholar: Russian citations, English citations
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