利用OTDR进行精确的测试

Making a precise measurement with OTDR

从理论上推导了OTDR测试光纤长度、衰减常数、衰减、接头损耗、回波损耗的原理 ,并在此基础上分析了影响OTDR测试精度的因素以及OTDR测量误差的来源 ,最后指出了在利用OTDR进行测量时应注意的地方。

This paper deduces the measurement theories of optical fiber length, attention coefficient,attention,spice loss and reflectance, analyzes those factors influencing measurement precision and the sources of measurement errors . The last section of this paper mentions some questions that should be paid attention to when a measurement is made with OTDR.