SRS induced depletion of 1540 nm signal co-propagatingwith 1630 nm OTDR pulses

Abstract

Recently 1625/1650 nm optical time domain reflectometers (OTDRs) have become commercially available. One application of these OTDRs is the monitoring of fibres with live traffic at 1550 nm. The authors present experimental results which show that stimulated Raman scattering (SRS) gives rise to a depletion of the signal.