The effect of glass composition, pure silica glass, boron-doped and fluorine-doped silica glasses of inner cladding, in the germano-silicate glass core fibers on optical and mechanical properties upon the γ-ray irradiation was investigated. Enhanced radiation hardening at 1,550 nm was found in both the B- and F-doped fibers after the γ-ray irradiation with dose-rate of 1.25 kGy/h. The radiation-induced attenuation (RIA) was found to increase in the order of the B-doped fiber, the F-doped fiber, and the silica fiber. While no major influence on the refractive index of the fibers after the γ-ray irradiation was found, the residual stress was slightly changed.

研究了锗硅酸盐玻璃芯纤维中玻璃成分，纯石英玻璃，掺硼的掺氟石英玻璃和内包层的掺氟石英玻璃对γ射线辐照后光学和机械性能的影响。在以1.25 kGy / h的剂量率进行γ射线辐照后，在掺B和F的光纤中都发现1,550 nm处的增强的辐射硬化。发现辐射诱导的衰减（RIA）按掺B光纤，掺F光纤和二氧化硅光纤的顺序增加。虽然发现对γ射线辐照后的纤维的折射率没有主要影响，但残余应力略有变化。