分光比偏差对光节点信号电平的影响

Influence of Optical Divide Ratio Deviation on Signal Level at Optical Node

在光网络设计中,为了保证到每个光节点的信号电平相等,人们往往将分光比设计和计算得非常精准,但加工制作出来的光分路器,其分光比实际值和理论设计值总会有一定的偏差,文章通过定性与定量分析,研究了分光比偏差给光节点信号电平产生的影响,并给出了测定分光比实际值及其与设计值偏差的方法。

In order to make sure that the signal level is equal at each optical node in optical network design, the optical divide ratio is accurately designed and computed. However, the actual value and designed value are different when the optical distributor is made. The influence of optical divide ratio deviation on signal level at optical node is analyzed and researched qualitatively and quantitatively. The method to measure actual value and deviation of optical divide ratio isgiven.