| OTDR测试盲区的研究与应用 |
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| 引用本文： | 李立功,余晓芬. OTDR测试盲区的研究与应用[J]. 合肥工业大学学报(自然科学版), 2004, 27(10): 1330-1333 |
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| 作者姓名： | 李立功 余晓芬 |
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| 作者单位： | 合肥工业大学,仪器仪表学院,安徽,合肥,230009;合肥工业大学,仪器仪表学院,安徽,合肥,230009 |
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| 摘 要： | 文章介绍了光时域反射计(OTDR)测试盲区的指标定义和产生机理,提出了利用窄脉冲、宽带宽、程控滤波和衰减等技术减小测试盲区的解决办法。结果表明,运用这些方法和高速采样技术对现有产品改进后,实现了3m的测试事件盲区,满足了光纤器件和光纤局域网的小盲区测试。
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| 关 键 词： | 光时域反射计 事件盲区 窄脉冲 |
| 文章编号： | 1003-5060(2004)10-1330-04 |
| 修稿时间： | 2004-07-31 |
Research on the deadzone of OTDR and the practical techniques for decreasing the deadzone |
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| LI Li-gong,YU Xiao-fen. Research on the deadzone of OTDR and the practical techniques for decreasing the deadzone[J]. Journal of Hefei University of Technology(Natural Science), 2004, 27(10): 1330-1333 |
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| Authors: | LI Li-gong YU Xiao-fen |
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| Abstract: | The definition and mechanism of the measuring deadzone by using the optical time-domain reflectometer(OTDR)are introduced,and several methods of decreasing the deadzone are discussed including the technique of narrow pulse width,the wide bandwidth receiving technique,and the high-speed sampling technology. These methods are used to improve the present products,and the experiment result shows that the event deadzone is about 3 m,then the measuring need of small deadzone in the optical fiber LAN and optical fiber devices can be satisfied. |
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| Keywords: | optical time-domain reflectometer(OTDR) event deadzone narrow pulse |
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