Investigations of Single-Mode Optical Fiber Microbending Properties

This research is devoted to the study of the properties of the microbending of an optical fiber. It is shown that an increase in the diameter of a microbend at a constant force in the area of its formation led to an increase in the power of optical radiation output from the fiber in the area of the microbend. It has been established that the smallest value of the optical radiation power branched in the microbending region and the smallest value of the radiation power loss at the microbending for the entire range of wavelengths under study is observed for the G657 optical fiber. The largest value of the radiation power branched off in the microbending region and the largest value of the radiation power loss at the microbending for the entire range of wavelengths under study is observed for the G655 optical fiber. The results of the article can be used in systems for protecting information transmitted over fiber-optic communication lines.

microbending, microbending properties, optical fiber, information leakage channel, information security