Fiber optic network technology is taking a big step forward with the tremendous transmission capacity offered by dense wavelength-division multiplexing (DWDM). These developments bring new challenges to the testing of passive optical components.
This document provides guidance on the implementation of a test setup for loss measurement for a multi-channel DWDM component such as a multiplexer. The document describes some real-life measurement setups, to highlight differences and illustrate the use of certain features.