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高输出功率锥形波导太赫兹量子级联激光器
High output power tapered terahertz quantum cascade laser
投稿时间:2014-10-29  修订日期:2014-12-05
中文关键词:量子级联激光器  太赫兹  高功率
英文关键词:quantum cascade laser  terahertz  high output power
基金项目:国家“973计划”资助项目(2014CB339803,2013CB632801);中国工程物理研究院太赫兹科学技术基金资助项目(CAEPTHZ201303)
作者单位
王 涛 Key Laboratory of Semiconductor Materials ScienceChinese Academy of SciencesBeijing 100083China 
刘俊岐 Key Laboratory of Semiconductor Materials ScienceChinese Academy of SciencesBeijing 100083China 
刘峰奇 Key Laboratory of Semiconductor Materials ScienceChinese Academy of SciencesBeijing 100083China 
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中文摘要:
      制作了基于锥形波导结构的高输出功率的太赫兹(THz)量子级联激光器。激光器采用单面金属波导结构,并采用锥形波导形状提高光输出功率,且保证了良好的光斑远场发散角。激光器水平方向远场光斑发散角为18.4?,器件输出中心波长为93 μm(3.23 THz),器件最高输出功率达到了185 mW,最高工作温度为95 K。80 K时,器件的最高脉冲输出功率能达到65 mW。基于如此高的输出功率,制作了液氮杜瓦封装的小型便携式太赫兹激光源。
英文摘要:
      High output power terahertz(THz) quantum cascade laser based on tapered waveguide profile is fabricated. Semi-insulating surface-plasma waveguide structure and tapered profile are adopted to enable high output power and excellent far-field lobe profile. The Full Width at Half Maximum(FWHM) of the laser beam in the horizontal direction is 18.4?. The emission wavelength is centered at 93 μm(3.23 THz), the highest output power is 185 mW and the highest operation temperature is 95 K. The output power at 80 K is 65 mW. Based on the high output property, portable terahertz laser source is packaged by liquid nitrogen dewar.
引用本文:王 涛,刘俊岐,刘峰奇.高输出功率锥形波导太赫兹量子级联激光器[J].太赫兹科学与电子信息学报,2015,13(3):361~364
DOI:10.11805/TKYDA201503.0361
学科分类代码:
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