Leakage of Information Through Passive Components in Optical Fiber Infrastructures

Optical fiber communications are essential for all types of long and short distance transmissions. The aim of the article is to analyze the previously presented risks and evaluation of the two biggest and therefore the most critical risks. The first major risk is the possibility of inserting a splitter into optical distribution network and capturing portion of the entire spectrum, ie all channels in the optical fiber. The second significant security risk is crosstalk on multiplexer in networks with wavelength division multiplexing. Based on the measurements, risks were evaluated for both point-to-point and point-to-multipoint networks.