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Kvantovaya Elektronika, 1983, Volume 10, Number 6, Pages 1232–1243 (Mi qe4318)  

This article is cited in 33 scientific papers (total in 33 papers)

Methods for narrowing the emission line of an injection laser

È. M. Belenov, V. L. Velichansky, A. S. Zibrov, V. V. Nikitin, V. A. Sautenkov, A. V. Uskov
Abstract: Theoretical estimates of narrowing of the emission line of an injection laser with an external resonator are obtained for different mechanisms that determine the line width. If the width of a line emitted by a laser diode without an external feedback ("initial" width) is governed by phase fluctuations because of the spontaneous noise, then the width of a line emitted by an injection laser with an external resonator is a quadratic function of the line width of the resonator itself. However, if the initial width is determined by fluctuations of the refractive index of the active medium, then the same dependence is linear. It is shown that external resonator configurations used so far have not been optimal. Ways are suggested for introducing high-Q interferometers into the external part of a composite resonator of an injection laser, which should make it possible to reduce the width of the emission line of a laser with an external resonator to ~1–103 Hz without altering the dimensions. An analysis is made of the influence of a wide-band electronic circuit for automatic phase control (based on an external high-Q interferometer) on the emission spectrum of an injection laser. It is shown that the "natural" width of an emission line may be reduced by between four and six orders of magnitude if the proposed method is used.
Received: 05.07.1982
English version:
Soviet Journal of Quantum Electronics, 1983, Volume 13, Issue 6, Pages 792–798
DOI: https://doi.org/10.1070/QE1983v013n06ABEH004318
Bibliographic databases:
Document Type: Article
UDC: 621.373.826.038.825.4
PACS: 42.55.Px, 42.60.Da
Language: Russian


Citation: È. M. Belenov, V. L. Velichansky, A. S. Zibrov, V. V. Nikitin, V. A. Sautenkov, A. V. Uskov, “Methods for narrowing the emission line of an injection laser”, Kvantovaya Elektronika, 10:6 (1983), 1232–1243 [Sov J Quantum Electron, 13:6 (1983), 792–798]
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  • https://www.mathnet.ru/eng/qe/v10/i6/p1232
  • This publication is cited in the following 33 articles:
    Citing articles in Google Scholar: Russian citations, English citations
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