TECHNIQUE FOR FAULT LOCALIZATION IN PASSIVE OPTICAL NETWORKS

摘要

An integrated probe device accommodating there-inside a cascaded 1 :N passive optical splitter having a tree-like structure and comprising an optical passive splitter at a root level of the tree, and a group including N/2 optical passive splitters at a leaves' level of the tree; in the probe device, free probing ends of the N/2 optical splitters extend out of said device for testing purposes.