OPTICAL PATH FEASIBILITY IN AN OPTICAL COMMUNICATIONS NETWORK

摘要

defining, for each individual optical path k and with type i interface, at least one parameter indicating its feasibility, calculating a quality Q factor Q'_i,k1+k2 of the signal for the composite path, estimated considering the deterioration which affects transmission over the paths k1 and k2 and comparing this quality Q'_i,k1+k2 with a value Qbare_i which is defined as the lowest value which can be taken on bya mapping function Q_i(.) for interface i and which gives the Q factor as a function of the OSNR received evaluated under the conditions that are considered to be the worst case that can be accepted whilst ensuring the desired signal quality and wherein the composite connection is considered feasible if Q'_i,k1+k2 = Qbare_i.