| 消光比参数的溯源方法 |
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| 引用本文： | 缪新育,陈龙泉,黄震,许伟.消光比参数的溯源方法[J].宇航计测技术,2017,37(3):41-43. |
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| 作者姓名： | 缪新育 陈龙泉 黄震 许伟 |
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| 作者单位： | 1、中国信息通信研究院，北京 100191 |
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| 基金项目： | 基金项目： 国家质量监督检验检疫总局时间频率计量基准重点实验室2016年度开放课题（41-AKYKF1610） |
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| 摘 要： | 对通信信号分析仪的光口消光比参数进行溯源研究,提出了将光口消光比参数溯源到示波器电压参数上的方法并进行了实验验证。首先搭建了消光比稳定的数字信号发射机作为被测源。其次采用带宽足够的光电探测器XPDV2150R(DC-50GHz 1550nm)将光信号转变到电信号,来消除频响对测量结果的影响,并通过实验验证了光电探测器带宽和接收机带宽对测量结果的影响。最后通过垂直幅度可溯源的电示波器对电信号进行消光比测量。将测量结果和通过通信信号分析仪光口眼图功能测得的结果进行比对,验证两者的一致性,最终实现将消光比参数溯源到电压参数上。
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| 关 键 词： | 溯源 消光比 频响 带宽 |
Trace Method of Extinction Ratio Parameters |
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| MIAO Xin-yu,CHEN Long-quan,HUANG Zhen,XU Wei.Trace Method of Extinction Ratio Parameters[J].Journal of Astronautic Metrology and Measurement,2017,37(3):41-43. |
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| Authors: | MIAO Xin-yu CHEN Long-quan HUANG Zhen XU Wei |
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| Institution: | 1、Telecom Technology Labs，China Academy of Information and Communication Technology，Beijing 100191，China |
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| Abstract: | The traceability of Extinction Ratio （ER） measurement of Communication signal analyzer is analyzed. The method that optical ER measurement is traced to voltage parameter is demonstrated and verified by experiment. Firstly，a digital signal transmitter with stable ER is established for measurement. Then optical detector XPDV2150R （DC-50 GHz 1 550 nm） with enough bandwidth is adopted for O/E conversion to avoid the influence of frequency response，and the bandwidth effect of optical detector and receiver on the measurement results is verified by experiments. At last，the ER of electrical signal is measured by oscilloscope whose vertical amplitude is traceable. The measurement result and the results measured by Communication signal analyzer directly is compared，and the agreement of them is verified. The ER parameter is traced to voltage parameter finally. |
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| Keywords: | Traceability Extinction Ratio Frequency response Bandwidth |
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