Remote power supply of optical networks, network communication elements and other electrical equipment of JSCO "RZD" on POF technology

The article describes the method and system of high power laser transmission over fiber optic for power supply of electronic devices of railway automatics, telemechanics and communications, optical networks and nodes based on Power-over-Fiber technology using special fiber optic cable and high power laser system. Use of these cables enables transmission of high power laser radiation energy over long distances, and these distances and power transmission levels were previously considered unattainable. This was achieved due to the special multi-layer structure of the cable used, as well as the absence of the frequency spectrum in the spectral characteristics of laser radiation, where the phenomena of forced Raman scattering occur. The results of the experiment are presented, which showed the possibility of transmitting a peak input laser power of 5 kW at a distance of 2 km, having received 51 % of the initial power at the system output. In addition, the cable design is expected to withstand severe atmospheric conditions.