波分复用系统的光信噪比与代价测试方法探讨

本文通过分析光放大器噪声的成分,指出了波分系统中在OSNR表象一致的情况下光放大噪声与ASE噪声的差异,以及这种差异在检测系统传输性能时所造成的影响,并设计了相关的代价测试实验系统。通过对实验数据的分析,指出了进行与系统OSNR代价相关的性能测试时如何获得真实系统参数的办法。

OSNR and Penalty for DWDM

Instead of optical amplifier noise, somebody test the performance relating with penalty of optical communication system always add noise use ASE. This paper analyzed the composing of optical amplifier noise, then show the difference between the optical amplifier noise and ASE noise while same OSNR on WDM system and the effect of the difference when to measure some parameter of transmission system. The experimentation system for test penalty was designed and been measured, the difference of test result is 0.3dB for them. Through analyze for the test result, this paper point out the way which how to get the true system parameter when to test some performance relate to OSNR penalty.