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首页> 外文期刊>Optical engineering >Spectrally resolved modal characteristics of leaky-wave-coupled quantum cascade phase-locked laser arrays
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Spectrally resolved modal characteristics of leaky-wave-coupled quantum cascade phase-locked laser arrays

机译：泄漏波耦合量子级联锁相激光器阵列的光谱分辨模态特性

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摘要

The modal characteristics of nonresonant five-element phase-locked arrays of 4.7-μm emitting quantum cascade lasers (QCLs) have been studied using spectrally resolved near- and far-field measurements and correlated with results of device simulation. Devices are fabricated by a two-step metal-organic chemical vapor deposition process and operate predominantly in an in-phase array mode near threshold, although become multimode at higher drive levels. The wide spectral bandwidth of the QCL's core region is found to be a factor in promoting multispatial-mode operation at high drive levels above threshold. An optimized resonant-array design is identified to allow sole in-phase array-mode operation to high drive levels above threshold, and indicates that for phase-locked laser arrays full spatial coherence to high output powers does not require full temporal coherence.
机译：使用光谱分辨近场和远场测量研究了4.7μm发射量子级联激光器（QCL）的非谐振五元素锁相阵列的模态特性，并将其与器件仿真结果相关联。器件是通过两步金属有机化学气相沉积工艺制造的，尽管在更高的驱动水平下会变为多模，但主要以接近阈值的同相阵列模式工作。发现QCL核心区域的宽频谱带宽是在高于阈值的高驱动水平下促进多空间模式操作的一个因素。确定了一种优化的谐振阵列设计，可以在高于阈值的高驱动电平下进行单独的同相阵列模式操作，并表明对于锁相激光器阵列，对高输出功率的完全空间相干不需要完全的时间相干。

著录项

  • 来源
    《Optical engineering》 |2018年第1期|011013.1-011013.13|共13页
  • 作者

    Chris Sigler; Ricky Gibson; Colin Boyle; Jeremy D. Kirch; Donald Lindberg; Thomas Earles; Dan Botez; Luke J. Mawst; Robert Bedford;

  • 作者单位

    University of Wisconsin-Madison, Department of Electrical and Computer Engineering, Madison, Wisconsin, United States;

    University of Dayton Research Institute, Dayton, Ohio, United States,Air Force Research Laboratory, Sensors Directorate, Wright-Patterson Air Force Base, Ohio, United States;

    University of Wisconsin-Madison, Department of Electrical and Computer Engineering, Madison, Wisconsin, United States;

    University of Wisconsin-Madison, Department of Electrical and Computer Engineering, Madison, Wisconsin, United States;

    lntraband, LLC, Madison, Wisconsin, United States;

    lntraband, LLC, Madison, Wisconsin, United States;

    University of Wisconsin-Madison, Department of Electrical and Computer Engineering, Madison, Wisconsin, United States;

    University of Wisconsin-Madison, Department of Electrical and Computer Engineering, Madison, Wisconsin, United States;

    Air Force Research Laboratory, Sensors Directorate, Wright-Patterson Air Force Base, Ohio, United States;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    quantum cascade lasers; MOCVD; phase-locked laser array;

    机译：量子级联激光器;MOCVD;锁相激光阵列;

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