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首页> 外文会议>Physics and simulation of optoelectronic devices XXIII >Free space ranging based on a chaotic long-wavelength VCSEL with optical feedback
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Free space ranging based on a chaotic long-wavelength VCSEL with optical feedback

机译：基于具有光反馈的混沌长波长VCSEL的自由空间测距

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摘要

Chaotic Lidar systems (CLIDAR) are used for high-resolution ranging. They are based on the correlation of a chaotic signal waveform with the signal that is reflected back from the target. We report a novel CLIDAR system based on the autocorrelation of the signal obtained by the superposition of the chaotic signal waveform and the signal that is reflected from the target. A simplified set-up with just one detector is required in contrast to the two detectors used in standard CLIDAR systems. Our experimental results are obtained with a 1550-nm vertical-cavity surface-emitting laser (VCSEL) with chaotic dynamics due to optical feedback. Our CLIDAR system provides an autocorrelation function with several sharp minima. The position of the target is obtained from the location of those minima. A theoretical analysis of the CLIDAR system is also presented. A rate equation model for the polarization of a VCSEL subject to optical feedback is the basis for the simulation of the CLIDAR system. A comparison between our theoretical and experimental results is performed, resulting in a good agreement in the chaotic signal but in a different sign of the CLIDAR signal.
机译：混沌激光雷达系统（CLIDAR）用于高分辨率测距。它们基于混沌信号波形与从目标反射回来的信号的相关性。我们报告了一种新颖的CLIDAR系统，该系统基于通过混沌信号波形与从目标反射的信号叠加而获得的信号的自相关。与标准CLIDAR系统中使用的两个检测器相比，仅需一个检测器的简化设置就可以了。我们的实验结果是使用1550 nm垂直腔面发射激光器（VCSEL）获得的，该激光器由于光反馈而具有混沌动力学。我们的CLIDAR系统提供了具有几个极小最小值的自相关功能。目标的位置是从那些最小值的位置获得的。还介绍了CLIDAR系统的理论分析。用于CLISEL系统仿真的基础是用于受光反馈作用的VCSEL偏振的速率方程模型。我们在理论和实验结果之间进行了比较，从而使混沌信号具有很好的一致性，但CLIDAR信号的信号却有所不同。

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  • 来源
  • 会议地点 San Francisco CA(US)
  • 作者

    Ana Quirce; Pablo Perez; Angel Valle; Luis Pesquera; Ignacio Esquivias; Krassimir Panajotov; Hugo Thienpont;

  • 作者单位

    Vrije Universiteit Brussel, Faculty of Engineering Sciences, Brussels Photonics Team B-PHOT, Pleinlaan 2,1050, Brussels, Belgium;

    Instituto de Fisica de Cantabria, Consejo Superior de Investigaciones Cientificas (CSIC)-Universidad de Cantabria, E-39005 Santander, Spain,Departamento de Fisica Moderna, Universidad de Cantabria, Facultad de Ciencias, E-39005, Santander, Spain;

    Instituto de Fisica de Cantabria, Consejo Superior de Investigaciones Cientificas (CSIC)-Universidad de Cantabria, E-39005 Santander, Spain;

    Instituto de Fisica de Cantabria, Consejo Superior de Investigaciones Cientificas (CSIC)-Universidad de Cantabria, E-39005 Santander, Spain;

    Universidad Politecnica de Madrid, CEMDATIC-ETSI de Telecomunicacion, Ciudad Universitaria, 28040, Madrid, Spain;

    Vrije Universiteit Brussel, Faculty of Engineering Sciences, Brussels Photonics Team B-PHOT, Pleinlaan 2,1050, Brussels, Belgium,Institute of Solid State Physics, 72 Tzarigradsko, Chaussee Blvd., 1784 Sofia, Bulgaria;

    Vrije Universiteit Brussel, Faculty of Engineering Sciences, Brussels Photonics Team B-PHOT, Pleinlaan 2,1050, Brussels, Belgium;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Vertical-cavity surface-emitting lasers (VCSELs); optical feedback; chaos; Lidar;

    机译：垂直腔面发射激光器（VCSEL）；光学反馈；混沌;激光雷达;

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