Lateral integration of VCSEL and amplifier with resonant wavelength detuning design

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  • Hu Shanting
    Laboratory for Future Interdisciplinary Research of Science and Technology, Tokyo Institute of Technology
  • Takanohashi Masashi
    Laboratory for Future Interdisciplinary Research of Science and Technology, Tokyo Institute of Technology
  • Gu Xiaodong
    Laboratory for Future Interdisciplinary Research of Science and Technology, Tokyo Institute of Technology
  • Matsutani Akihiro
    Laboratory for Future Interdisciplinary Research of Science and Technology, Tokyo Institute of Technology
  • Koyama Fumio
    Laboratory for Future Interdisciplinary Research of Science and Technology, Tokyo Institute of Technology

Abstract

<p>We propose and demonstrate the lateral integration of a VCSEL and a slow-light VCSEL amplifier with in-plane resonant wavelength detuning design, enabling the unidirectional coupling and stable single-mode operation with good beam quality. The modelling and simulation result of the wavelength detuning and unidirectional coupling is shown. A slow light laterally coupled from the VCSEL to the amplifier can be amplified uniformly when the amplifier is pumped above the threshold current. We also present the experimental data of the beam quality, output power and spectrum. The measured data show the increased single-mode output power with good beam quality in comparison with conventional VCSELs. A record single-mode power (40 mW) with narrow beam divergence (<0.06°) is presented.</p>

Journal

  • IEICE Electronics Express

    IEICE Electronics Express 17 (2), 20190688-20190688, 2020

    The Institute of Electronics, Information and Communication Engineers

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