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Abstract <p>The effect of intensity modulation of narrow-linewidth laser radiation in the 1590 nm range, transmitted through the waveguide structure of a quantum cascade laser, has been obtained and observed upon application of an electric voltage to the structure. This effect reveals the thermodynamic behaviour of the active region of a quantum cascade laser operating in a pulsed mode, which is relevant to the task of optical communication based on the principle of high-frequency amplitude signal modulation.</p>

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Intensity Modulation of Narrow-Linewidth IR Laser Radiation during Transmission through a Quantum Cascade Laser Structure

  • 期刊论文

  • 发表日期：

    2025年8月1日

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  • S. A. Chakhlov,
  • L. A. Miklashevich,
  • A. A. Lastovkin,
  • N. G. Zakharov

摘要

Abstract

The effect of intensity modulation of narrow-linewidth laser radiation in the 1590 nm range, transmitted through the waveguide structure of a quantum cascade laser, has been obtained and observed upon application of an electric voltage to the structure. This effect reveals the thermodynamic behaviour of the active region of a quantum cascade laser operating in a pulsed mode, which is relevant to the task of optical communication based on the principle of high-frequency amplitude signal modulation.