Dynamics enhancement of OTDR-based monitoring systems for passive optical networks

Abstract

We describe a technique for the dynamics enhancement of OTDR -based passive optical network monitoring systems using Raman amplification. By ch oosing a suitable pump wavelength co-propagating with the test signal, we experim entally show that it is possible to obtain a 16 dB increase of the dynamics. This enables the de tection of more faults and fibre breaks.