From a researcher’s as well as a user’s point of view, it is highly desirable to adopt a common basis for specifying optical time-domain reflectometer performance parameters. This paper proposes some procedures and test methods which permit these devices to be characterized in a consistent way. Passive test fixtures are also described which may facilitate measurements of dynamic range and other reflectometer properties.
Bruce L. Danielson, "Optical time-domain reflectometer specifications and performance testing," Appl. Opt. 24, 2313-2322 (1985)