Study of the possibility of the optical fiber condition monitoring using phase-sensitive OTDR. Part II: nonlinear acoustic emission method

The article presents the results of an experimental study of the possibility of application a phase-sensitive reflectometer to register nonlinear acoustic emissions during the formation of defects in optical fibers. The method for control of nonlinear acoustic emission parameters in optical fibers was proposed and the peculiarities of using a phase-sensitive optical reflectometer was considered.