Fading in heterodyne OTDR
The first- and second-order statistics of the Rayleigh back-scatter signal from a single-mode fibre under quasimonochromatic pulse excitation are derived. A fading phenomenon is predicted and observed experimentally.
The first- and second-order statistics of the Rayleigh back-scatter signal from a single-mode fibre under quasimonochromatic pulse excitation are derived. A fading phenomenon is predicted and observed experimentally.