Communication Fiber Optic Cable Breakpoint Localization in High Steep Areas Based on Phase-sensitive Optical Time-domain Reflection Technique

The conventional method for locating the breakpoint of communication optical cable in high steep area mainly uses BRA (Backscatter Reflection Attenuation) backscatter attenuation curve unit to measure the positioning parameters, which is vulnerable to the effect of remote command connection, resulting in poor positioning performance indicators. Therefore, a method for locating the breakpoint of communication optical cable in high steep area based on phase sensitive time-domain reflection technology is proposed. That is to say, the phase sensitive time-domain reflection technology is used to calculate the location interval of communication cable breakpoint in high steep area, and the design of communication cable breakpoint locator in high steep area, thus realizing the location of communication cable breakpoint in high steep area. The experimental results show that the designed communication cable breakpoint positioning has good performance indicators, reliability and certain application value, and has made certain contributions to improving the operation reliability of communication cable and reducing the operation and maintenance risk of cable.