| EVOA的衰减自动控制设计 |
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| 引用本文： | 杨明,左剑.EVOA的衰减自动控制设计[J].电子质量,2009(3). |
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| 作者姓名： | 杨明 左剑 |
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| 作者单位： | [1]南京电讯技术研究所,江苏南京210007 [2]全军通信测量技术研究中心,江苏南京210016 |
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| 摘 要： | 电控可变光衰减器EVOA广泛应用于光器件测试和光通信系统评估中，但传统的直接控制EVOA会占用CPU大量的时间、测试过程复杂。针对这种情况提出了采用FPGA的方案，由目标衰减值与当前值的比较结果经译码输出控制信号，不仅避免了EVOA的过载，也优化了测试时间和测试流程，降低了系统功耗。对手持仪表的开发有借鉴意义。
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| 关 键 词： | 电控可变光衰减器 程控光衰减器 光信号 FPGA |
Design of Automatic Attenuation Control System for EVOA |
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| YangMing,ZuoJian.Design of Automatic Attenuation Control System for EVOA[J].Electronics Quality,2009(3). |
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| Authors: | YangMing ZuoJian |
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| Institution: | 1 NanJing Telecommunication Technology Institute;Jiangsu NanJing 210007;2 The PLA Research Center of Communication Measure and Test Technology;Jiangsu NanJing 210016 |
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| Abstract: | ElectricallyVariable Optical Attenuator is widely used in optical components test and optical communication system evaluation, but the realization of conventional direct control requires complex procedures and much processing time of CPU. So this paper proposes a control scheme based on FPGA, the control logic is encoded from the difference between current and the target value for escaping from EVOA overload as well as optimizing the test procedures and testing time.The idea is helpful to develop the handhe... |
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| Keywords: | EVOA programmable optical attenuator Optical signal FPGA |
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