New approaches to pulsed light generation in semiconductor quantum dot lasers

半导体量子点激光器产生脉冲光的新方法

基本信息

项目摘要

Scientific goal of this proposal is the first experimental demonstration of ultra-stable pulsed multiwavelength emission generated by micro-lasers based on tailored semiconductor quantum dots. These novel lasers feature top-level spectral properties and are characterized by their unique ultrafast carrier dynamics. At first, it is necessary to develop new numeric and analytic methods and build solid foundations to describe the generation of ultrashort optical pulses. The experimental demonstration and characterization of novel quantum dot based pulsed lasers, including micro-ring and micro-disc lasers, is the focus of this proposal together with investigations of edge-emitting quantum dot lasers and their nonlinear emission characteristics. New concepts of selective doping of the laser-active zone during sample growth as well as the specific spectral broadening of the quantum dot gain spectra will be investigated. Furthermore, comprehensive characterizations of the frequency and amplitude stability of the generated optical pulse trains will be considered, also subject to delayed optical and electronic feedback schemes with the aim to enhance the understanding and the unique potential of semiconductor quantum dot based wavelength-versatile micro-ring and micro-disc lasers as a new generation of ultra-compact semiconductor quantum dot laser.
这项提议的科学目标是首次实验演示基于定制半导体量子点的微型激光器产生的超稳定脉冲多波长发射。这些新型激光器具有顶级光谱特性,并以其独特的超快载流子动力学为特征。首先,有必要发展新的数值和解析方法,为描述超短光脉冲的产生奠定坚实的基础。基于新型量子点的脉冲激光器,包括微环和微盘激光器的实验演示和表征,以及对边缘发射量子点激光器及其非线性发射特性的研究是本方案的重点。将研究样品生长过程中激光活动区的选择性掺杂以及量子点增益谱的特定光谱展宽的新概念。此外,还将考虑所产生的光脉冲序列的频率和幅度稳定性的综合表征,也受到延迟光学和电子反馈方案的影响,目的是加强对基于半导体量子点的波长通用微环和微盘激光器作为新一代超紧凑半导体量子点激光器的理解和独特潜力。

项目成果

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Privatdozent Dr. Stefan Breuer其他文献

Privatdozent Dr. Stefan Breuer的其他文献

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{{ truncateString('Privatdozent Dr. Stefan Breuer', 18)}}的其他基金

Compact coherent sub-terahertz sources based on quantum dot laser frequency combs
基于量子点激光频率梳的紧凑型相干亚太赫兹源
  • 批准号:
    438641949
  • 财政年份:
    2020
  • 资助金额:
    --
  • 项目类别:
    Research Fellowships

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