FOA Lecture 22 : Mode Power Distribution in Multimode Fibers

This video is lecture 22 in the Fiber Optics Association's lecture series on fiber optics. This lecture briefly reviews modes in graded-index multimode fibers then shows how users can see the modes by using visible laser light from a VFL (visual fault locator.) The lesson also shows the effect of a mandrel wrap on the fiber, allowing users to see how the higher order modes are removed by the mandrel wrap. Running time for the lecture is 8:29 minutes.