SPECIAL RAD-HARD FIBER-OPTICS CHANNEL
The article suggests the overview of issues concerning the radiation protection of fiber-optic channels for information-measuring systems and sensors, used in ionizing radiation areas. The influence of ionizing radiation on fiber guides, fiber guide radiation hardening due to reversible radiation-induced absorption bleaching, irreversible laser emission-induced absorption fiber photobleaching as well as mathematical modeling of fiber heating by radiation protection laser emission were considered. The article suggests the research findings on fiber guide heating process control when heating is due to protecting laser emission as well as findings on fiber guide radial resistance, identifying power capability of protecting laser emission.