Influence of γ irradiation on the temperature dependence of the optical losses in quartz glass–polymer fiber waveguides

A study was made of the influence of γ irradiation on the temperature dependences of the optical losses in quartz glass–polymer fiber waveguides. The working temperature range was extended by γ irradiation to subzero temperatures in the case of two types of waveguide: those with a cladding made of SIÉL commercial silicone rubber and those made by the Quartz-Silice firm. The results obtained were explained by changes in the structure of silicone rubber under the action of γ irradiation.