Effect of Temperature on the Radiation Induced Losses of Large Diameter GPS (Germanium Phosphosilicate) and GBS Core Optical Fibers

摘要

Large diameter germanium-phosphosilicate (GPS) core and germanium-borosilicate (GBS) core optical fibers were tested for their radiation induced losses under continuous and transient radiation exposures at temperatures of -55 deg C, +25 deg C and +125 deg C. Under continuous irradiation, the GPS core fiber showed a rate of induced loss more than double that of the GBS core fiber at +25 C and a regular increase in induced loss with increasing temperature. The rate of induced loss for the GBS core fiber at +125 C was less than twice that at +25 deg C while at -55 deg C it was more than 20 times the +25 deg C rate.