Analyses of optical time-domain reflectometry for single-mode fibers and of polarization optical time-domain reflectometry for polarization-maintaining fibers

Optical time-domain reflectometry for single-mode optical fibers has been theoretically discussed in terms of the Lorentz reciprocity principle and of a correlation function of the refractive-index fluctuation. Through an application of analysis to polarization-maintaining fibers, the properties of the polarization optical time-domain reflectometry have been made clear.