A GRADED-INDEX MULTIMODE OPTICAL FIBER, A METHOD OF CHARACTERIZING AND A METHOD OF FABRICATING SUCH A FIBER

摘要

a) injecting a light pulse at a predefined wavelength into the core of an optical fiber that is to be characterized, via an "inlet" face thereof, said light pulse being injected with a predefined radial offset from the center of said inlet face; b) detecting said light pulse at an "outlet" face of said optical fiber, the time characteristic of the pulse being modified by propagation along the fiber; and c) repeating steps a) and b) for a plurality of values for said predefined radial offset; the method being characterized in that it further comprises