Patent ID: 7715717
Filing Date: 2010-05-11
Classification: G01M,H04B

Abstract:
1. A method for determining a PMD-induced outage probability of an optical transmission system, which includes an optical transmission line having at least one optical input and at least one optical output, during a specified/specifiable observation period, comprising: within the observation period and in at least one first position of the transmission line, changing polarization states of the optical transmission system and/or optical signals transmitted by the optical transmission system by bringing a targeted intervention to bear, at a second position, which is interposed at least one place downstream from the first position of the optical transmission line, quantitatively measuring at least one specified/specifiable signal characteristic, checking the signal characteristic for compliance with a specified/specifiable threshold condition, calculating the PMD-induced outage probability of the optical transmission system on the basis of a ratio of a length of time during which the measured signal characteristic fails to meet the threshold condition to a length of the observation period.