Title :
Environmental perturbation tracking in coherent OTDR for recovering detection sensitivity
Author :
Iida, Hiroyuki ; Toge, Kunihiro ; Ito, Fumihiko
Author_Institution :
NTT Access Network Service Syst. Labs., Tsukuba, Japan
Abstract :
The effect of environmental perturbations applied to long-haul submarine cables on the COTDR performance is shown for the first time. A simulative experiment employing perturbation-tracking compensation based on software processing reveals that we can compensate for SNR degradation caused by a random Doppler frequency shift in backscattering.
Keywords :
Doppler shift; optical signal detection; submarine cables; time-domain reflectometry; Doppler frequency shift; SNR degradation; coherent OTDR; detection sensitivity; environmental perturbation tracking; long-haul submarine cable; perturbation tracking compensation; software processing;
Conference_Titel :
Optical Communication (ECOC 2013), 39th European Conference and Exhibition on
Conference_Location :
London
Electronic_ISBN :
978-1-84919-759-5
DOI :
10.1049/cp.2013.1385
