关于DWDM系统色散补偿模块配置不当导致单波道误码的研究分析

Research on Single Channel Bit Error Caused by Incorrect DCM Configuration in DWDM System

在DWDM系统中,产生误码通常与光功率预算、信噪比和色散因素有关系。一般认为单波道纠错性能的劣化与色散补偿模块配置无关,色散补偿模块配置不当只会影响所有波道而不是单波道。但在故障定位时,在排除光功率、信噪比及单板硬件问题以后,还得回到系统上全局考虑。

In DWDM system, bit error is usually related to the optical power budget, the optical signal to noise ratio（SNR） and the dispersion factor. It is generally considered that the performance degradation of single-channel error correction is irrelevant to the DCM. DCM misconfiguration affects all-channel rather than single-channel. However, when locating the fault, excluding issues such as optical power, SNR and single-board hardware, it has to turn to overall consideration.