Computing Insertion Loss when Transitioning Through Dissimilar Fibre with the Optical Backscatter Reflectometer (OBR)

LUNA’s Optical Backscatter Reflectometer (OBR) is ideally suited for measuring Insertion Loss (IL) and Return Loss (RL) in optical networks with extremely high spatial resolution. This engineering note details how to properly compute insertion loss by measuring the relative difference in scatter levels.