Investigation of the distribution of color centers along γ-irradiated fiber waveguides

An investigation was made of the distribution of color centers along a glass optical fiber and a single-fiber optical cable with the fiber lying freely in a tube. The induced optical attenuation of the investigated fibers and cables was used as a measure of the number of color centers. The fibers and cables were irradiated with γ rays from a ⁶⁰Co source and the dose was up to 10⁷ rad. The dependence of the induced attenuation on the dose was determined for each investigated segment. The attenuation was measured at the wavelength of 0.82 μ.