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Experimental study of the characteristics of high-power laser diode radiation in the above-threshold mode for degradation analysis

  • Semiconductor Lasers
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Abstract

The angular dependence of the intensity and contrast of the radiation of laser diodes (LDs) with a CW power of 1.25 W has been investigated in the above-threshold mode. An original method for detecting fundamental lasing is used to analyze the mode structure of the LD radiation at low pump currents. It is shown that this radiation contrast measurement makes it possible to detect the LD degradation in earlier stages than in power measurements.

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Authors and Affiliations

  1. National Research University “Moscow Power Engineering Institute”, ul. Krasnokazarmennaya 14, Moscow, 111250, Russia

    V. V. Bliznyuk, N. V. Berezovskaya, M. A. Brit, O. I. Koval & V. A. Parshin

  2. Lomonosov Moscow State University, Leninskie Gory 1, str. 2, Moscow, 119991, Russia

    A. G. Rzhanov

Authors
  1. V. V. Bliznyuk
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  2. N. V. Berezovskaya
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  3. M. A. Brit
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  4. O. I. Koval
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  5. V. A. Parshin
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  6. A. G. Rzhanov
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Corresponding author

Correspondence to V. V. Bliznyuk.

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Bliznyuk, V.V., Berezovskaya, N.V., Brit, M.A. et al. Experimental study of the characteristics of high-power laser diode radiation in the above-threshold mode for degradation analysis. Phys. Wave Phen. 25, 95–100 (2017). https://doi.org/10.3103/S1541308X17020030

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  • DOI: https://doi.org/10.3103/S1541308X17020030

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