KEY FACTORS IN MONITORING INFORMATION SECURITY IN OPTICAL FIBERS

The article presents theoretical information about methods of extracting data from optical fibers. Among the analyzed methods, the simplest one is based on the bending of the optical fiber, which occurs when the conditions for total internal reflection are violated. The functional dependence of losses and the emitted power level is determined by the bending parameters and geometry of the optical fiber. In this case, the monitoring system controls the introduced losses in order to detect fiber bending. The structure and operating principles of monitoring systems, as well as development trends, are discussed. The main technical characteristics of optical radiation detection devices are also presented.