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Kvantovaya Elektronika, 2000, Volume 30, Number 1, Pages 87–93 (Mi qe1665)  

This article is cited in 5 scientific papers (total in 5 papers)

Laser applications and other topics in quantum electronics

Role of noise in the diode-laser spectroscopy of the spectral line profile

A. I. Nadezhdinskii, V. V. Plotnichenko, Ya. Ya. Ponurovskii, M. V. Spiridonov

Natural Sciences Center at General Physics Institute of RAS, Moscow
Full-text PDF (248 kB) Citations (5)
Abstract: Questions concerning precise measurements of the spectral-line-profile parameters by diode-laser spectroscopic methods were examined. The instrumental function of a distributed-feedback diode laser (λ =1.53 μm), consisting of the additive contributions of the noise due to spontaneous emission, frequency fluctuations, and intensity fluctuations, was investigated. An analytical formula was obtained for the spectrum of the diode-laser field formed by frequency fluctuations. The spectral density g0 of the frequency fluctuations, determining the width of the central part of the emission line profile of a diode laser, was found by two independent methods (by fitting to a Doppler-broadened absorption line profile and by finding the intensity of the residual radiation and the saturated-absorption line width). The parameters Ω and Γ of the spectral density of the frequency fluctuations, coupled to the relaxation oscillations and determining the wing of the diode-laser emission line profile, were determined experimentally. By taking into account the instrumental function of the diode laser, involving successive convolution with the recorded emission spectra, it was possible to reproduce correctly the spectral line profile and to solve accurately the problem of the 'optical zero'. The role of the correlation between the intensity noise and the diode-laser frequency was considered.
Received: 20.07.1999
English version:
Quantum Electronics, 2000, Volume 30, Issue 1, Pages 87–93
DOI: https://doi.org/10.1070/QE2000v030n01ABEH001665
Bibliographic databases:
Document Type: Article
PACS: 42.62.Fi, 07.60.Rd, 42.50.Lc
Language: Russian


Citation: A. I. Nadezhdinskii, V. V. Plotnichenko, Ya. Ya. Ponurovskii, M. V. Spiridonov, “Role of noise in the diode-laser spectroscopy of the spectral line profile”, Kvantovaya Elektronika, 30:1 (2000), 87–93 [Quantum Electron., 30:1 (2000), 87–93]
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  • https://www.mathnet.ru/eng/qe/v30/i1/p87
  • This publication is cited in the following 5 articles:
    Citing articles in Google Scholar: Russian citations, English citations
    Related articles in Google Scholar: Russian articles, English articles
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