Influence of crosstalk on all-optical system

In this article, the crosstalk produced in optical node and its accumulations in all-optical system are analyzed. Furthermore, the influence of both optical switch insulation and the input signals power difference on system BER are calculated. From the simulation, the following conclusions are drawn: (1) non-ideal character of optical switch insulation is the main reason for producing crosstalk; (2) equalizing the optical power before the optical switch has better effects than afterwards.