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Kvantovaya Elektronika, 2007, Volume 37, Number 1, Pages 74–80 (Mi qe13344)  

This article is cited in 3 scientific papers (total in 3 papers)

Quantum optics

Use of the squeezed (sub-Poisson) state of light in small-signal detection with preamplification upon four-wave mixing

A. V. Kozlovskii

P. N. Lebedev Physical Institute, Russian Academy of Sciences, Moscow
Full-text PDF (180 kB) Citations (3)
Abstract: The scheme of an active interferometer for amplification of small optical signals for their subsequent photodetection is proposed. The scheme provides a considerable amplification of signals by preserving their quantum-statistical properties (ideal amplification) and also can improve these properties under certain conditions. The two-mode squeezed state of light produced upon four-wave mixing, which is used for signal amplification, can be transformed to the non-classical state of the output field squeezed in the number of photons. The scheme is phase-sensitive upon amplification of the input coherent signal. It is shown that in the case of the incoherent input signal with the average number of photons $\langle n_s\rangle$ $\sim1$, the amplification process introduces no additional quantum noise at signal amplification as large as is wished. A scheme is also proposed for the cascade small-signal amplification $(\langle n_s\rangle$ $\sim1)$ in the coherent state producing the amplified signal in the squeezed sub-Poisson state, which can be used for the high-resolution detection of weak and ultraweak optical signals.
Received: 17.07.2006
Revised: 16.10.2006
English version:
Quantum Electronics, 2007, Volume 37, Issue 1, Pages 74–80
DOI: https://doi.org/10.1070/QE2007v037n01ABEH013344
Bibliographic databases:
Document Type: Article
PACS: 42.50.Ar, 42.60.Da, 42.65.Sf
Language: Russian
Citation: A. V. Kozlovskii, “Use of the squeezed (sub-Poisson) state of light in small-signal detection with preamplification upon four-wave mixing”, Kvantovaya Elektronika, 37:1 (2007), 74–80 [Quantum Electron., 37:1 (2007), 74–80]
Citation in format AMSBIB
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\vol 37
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\pages 74--80
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\jour Quantum Electron.
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  • https://www.mathnet.ru/eng/qe/v37/i1/p74
  • This publication is cited in the following 3 articles:
    Citing articles in Google Scholar: Russian citations, English citations
    Related articles in Google Scholar: Russian articles, English articles
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