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首页> 外文期刊>Applied Physics Letters >Controlled switching of ultrafast circular polarization oscillations in spin-polarized vertical-cavity surface-emitting lasers
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Controlled switching of ultrafast circular polarization oscillations in spin-polarized vertical-cavity surface-emitting lasers

机译:自旋偏振垂直腔面发射激光器中超快圆偏振振荡的控制切换

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摘要

We demonstrate a scheme for controlled switching of polarization oscillations in spin-polarized vertical-cavity surface-emitting lasers (spin-VCSEL). Under hybrid electrical and optical pumping conditions, our VCSEL devices show polarization oscillations with frequencies far above the VCSEL's electrical modulation bandwidth. Using multiple optical pulses, we are able to excite and amplify these polarization oscillations. When specific phase and amplitude conditions for the optical excitation pulses are met, destructive interference leads to switch-off of the polarization oscillation, enabling the generation of controlled short polarization bursts.
机译:我们演示了自旋极化垂直腔面发射激光器(spin-VCSEL)中偏振振荡的受控切换方案。在电和光泵浦混合条件下,我们的VCSEL器件显示出极化振荡,其频率远高于VCSEL的电调制带宽。使用多个光脉冲,我们能够激发和放大这些偏振振荡。当满足光激发脉冲的特定相位和幅度条件时,相消干涉将导致偏振振荡断开,从而产生受控的短偏振猝发。

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  • 来源
    《Applied Physics Letters》 |2014年第2期|022409.1-022409.4|共4页
  • 作者单位

    Photonics and Terahertz Technology, Ruhr-University Bochum, D-44780 Bochum, Germany;

    Photonics and Terahertz Technology, Ruhr-University Bochum, D-44780 Bochum, Germany;

    Photonics and Terahertz Technology, Ruhr-University Bochum, D-44780 Bochum, Germany;

    Photonics and Terahertz Technology, Ruhr-University Bochum, D-44780 Bochum, Germany;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
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