The Same-source Crosstalk in the WDM-OXC

摘要

In a dynamic WDM-OXC, due to the various available paths for an incoming signal, there exits a special kind of same-wavelength crosstalk, termed same-source crosstalk. Its impact on the system is more severe than that of other kinds of crosstalk under the worst case. This paper also points out that, by introducing light path differences between different channel, one can distinctly reduce the impact of the same-source crosstalk with simple and minimum hardware cost.