Direct detection of a fast modulated terahertz light with a spectrally matched quantum-well photodetector

Direct detection of a fast modulated terahertz light with a spectrally matched quantum-well photodetector
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使用光谱匹配量子阱光电探测器直接检测快速调制太赫兹光

DOI:
10.1049/el.2016.3099
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发表时间:
2017-01
影响因子:
1.1
通讯作者:
Juncheng Cao
Juncheng Cao
中科院分区:
工程技术4区
文献类型:
--
作者:
Zhiyong Tan;Hua Li;Wenjian Wan;Zhanglong Fu;Chang Wang;Juncheng Cao

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提出了一种基于太赫兹量子阱光电探测器(QWP)和快速调制太赫兹量子级联激光器的快速探测系统。得到了不同调制频率下的响应波形和眼图。采用当前测量系统,无需任何高速优化,即可获得0.5 GHz的最高响应速率。实验结果表明,量子小波包在快速检测和高速通信应用中具有潜在的应用价值。
A fast detection system based on a terahertz quantum-well photodetector (QWP) and a fast modulated terahertz quantum-cascade laser is presented. Response waveforms and eye diagrams under different modulation frequencies are acquired. Employing the current measurement system without any high speed optimisation obtains the highest response rate of 0.5 GHz. The experiment demonstrates that the QWP is potentially useful for fast detection and high speed communication applications.
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