SDH设备光发送机消光比的精确测量

Accuracy Measurement of SDH Equipment Optical Transmitter Extinction

阐述ＳＤＨ设备中的激光器消光比对设备性能的影响，介绍消光比的两种测量技术，并分析了影响测量精度的误差源。

This paper describes the influence of laser extinction on the SDH equipment performance and introduces two methods of laser extinction measurement. The error reasons of measurement are also analyzed.