光纤损耗是什么？如何计算？ _生活百科

在光纤安装中，对光纤链路进行正确的测量和计算是验证网络完整性和确保网络性能非常重要的步骤，光纤内会因光吸收和散射等造成明
【光纤损耗是什么？如何计算？】portant; overflow-wrap: break-word !important;">在光纤安装中，对光纤链路进行正确的测量和计算是验证网络完整性和确保网络性能非常重要的步骤，光纤内会因光吸收和散射等造成明显的信号损失（即光纤损耗），从而影响光传输网络的可靠性。那么光纤损耗如何计算的呢？
portant; word-wrap: break-word !important; font-size: 17px;">光纤损耗的标准portant; word-wrap: break-word !important; font-size: 17px;">portant; overflow-wrap: break-word !important;">电信工业联盟（TIA）和电子工业联盟（EIA）携手制定了EIA/TIA标准，该标准规定了光缆、连接器的性能和传输要求，如今在光纤行业中被广泛接受和使用。EIA/TIA标准明确了最大衰减是光纤损耗测量时最重要的参数之一。实际上，最大衰减是光缆的衰减系数，以dB/km为单位。下图显示了在EIA/TIA-568规范标准中不同类型光缆的最大衰减。
portant;">portant;" class="firstRow">portant; word-wrap: break-word !important; font-size: 17px;">光缆类型portant; word-wrap: break-word !important; font-size: 17px;">波长（nm）portant; word-wrap: break-word !important; font-size: 17px;">最大衰减（dB / km）portant; word-wrap: break-word !important; font-size: 17px;">最小带宽（Mhz * km）portant;">portant; word-break: keep-all !important;">portant; word-wrap: break-word !important; font-size: 17px;">50/125μm多模portant; word-break: keep-all !important;">portant; word-wrap: break-word !important; font-size: 17px;">850portant; word-break: keep-all !important;">portant; word-wrap: break-word !important; font-size: 17px;">3.5portant; word-break: keep-all !important;">portant; word-wrap: break-word !important; font-size: 17px;">500portant;">portant; word-break: keep-all !important;">portant; word-wrap: break-word !important; font-size: 17px;">1300portant; word-break: keep-all !important;">portant; word-wrap: break-word !important; font-size: 17px;">1.5portant; word-break: keep-all !important;">portant; word-wrap: break-word !important; font-size: 17px;">500portant;">portant; word-break: keep-all !important;">portant; word-wrap: break-word !important; font-size: 17px;">62.5/125μm多模portant; word-break: keep-all !important;">portant; word-wrap: break-word !important; font-size: 17px;">850portant; word-break: keep-all !important;">portant; word-wrap: break-word !important; font-size: 17px;">3.5portant; word-break: keep-all !important;">portant; word-wrap: break-word !important; font-size: 17px;">160portant;">portant; word-break: keep-all !important;">portant; word-wrap: break-word !important; font-size: 17px;">1300portant; word-break: keep-all !important;">portant; word-wrap: break-word !important; font-size: 17px;">1.5portant; word-break: keep-all !important;">portant; word-wrap: break-word !important; font-size: 17px;">500portant;">portant; word-break: keep-all !important;">portant; word-wrap: break-word !important; font-size: 17px;">室内单模光缆portant; word-break: keep-all !important;">portant; word-wrap: break-word !important; font-size: 17px;">1310portant; word-break: keep-all !important;">portant; word-wrap: break-word !important; font-size: 17px;">1.0portant; word-break: keep-all !important;">portant; word-wrap: break-word !important; font-size: 17px;">——portant;">portant; word-break: keep-all !important;">portant; word-wrap: break-word !important; font-size: 17px;">1550portant; word-break: keep-all !important;">portant; word-wrap: break-word !important; font-size: 17px;">1.0portant; word-break: keep-all !important;">portant; word-wrap: break-word !important; font-size: 17px;">——portant;">portant; word-break: keep-all !important;">portant; word-wrap: break-word !important; font-size: 17px;">室外单模光缆portant; word-break: keep-all !important;">portant; word-wrap: break-word !important; font-size: 17px;">1310portant; word-break: keep-all !important;">portant; word-wrap: break-word !important; font-size: 17px;">0.5portant; word-break: keep-all !important;">portant; word-wrap: break-word !important; font-size: 17px;">——portant;">portant; word-break: keep-all !important;">portant; word-wrap: break-word !important; font-size: 17px;">1550portant; word-break: keep-all !important;">portant; word-wrap: break-word !important; font-size: 17px;">0.5portant; word-break: keep-all !important;">portant; word-wrap: break-word !important; font-size: 17px;">——portant; word-wrap: break-word !important; font-size: 17px;">如何计算光纤损耗？portant; word-wrap: break-word !important; font-size: 17px;">portant; overflow-wrap: break-word !important;">若想检测光纤链路是否能正常运行，那么就需要计算光纤损耗、功率预算以及功率裕度，计算方式如下。
portant; word-wrap: break-word !important; font-size: 17px;">光纤损耗的计算portant; overflow-wrap: break-word !important;">在光纤布线中，常常需要在一条确定长度的线路上计算最大损耗。光纤损耗计算公式：