A study was done of the effects of 14.7 Mev neutrons on transmission in optical fibers. This study was done with monochromatic light in the spectral range from 700 to 1700 nanometers. Of the fibers studied, two were high purity silica fibers, and two were Germanium doped core silica fibers. An important result of the study was that the radiation induced damage was wavelength related. The induced damage decreased rapidly ...