Description:
This is Lecture 22 in the Fiber Optics Association's lecture series on multimode fibers. In this lecture, the presenter briefly reviews modes in graded-index multimode fibers then shows how you can actually see the modes by using visible laser light from a VFL (visual fault locator.) The presenter will also show the effect of a mandrel wrap on the fiber, allowing you to actually see how the higher order modes are removed by the mandrel wrap. Running time for the lecture is 8:29. Flash is required to view the video.
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