A Measuring Technique of Raman Gain efficiency for an Optical Transmission Line Including Optical Fibers and Connectors by Using OTDR

Abstract

The measuring technique of Raman gain efficiency along the transmission line composed of optical fibers and connectors based on the OTDR is proposed. It is a simple method of estimating Raman gain efficiency from the backscattered powers with and without pump power based on the OTDR. Experiments of Raman gain efficiency are carried out for the optical transmission line composed of four 3-km long single-mode fibers. By our present method, the Raman gain efficiency distribution is successfully estimated.