Title :
Centralised Optical Monitoring of Tree-structured Passive Optical Networks using a Raman-assisted OTDR
Author :
Yuksel, K. ; Letheux, S. ; Grillet, A. ; Wuilpart, M. ; Giannone, D. ; Hancq, J. ; Ravet, G. ; Mégret, P.
Author_Institution :
SET, Mons
Abstract :
Monitoring of tree-structured passive optical networks from a central office is difficult to achieve using a standard OTDR. Switchable reflective elements placed at the ONU can help to discriminate between the branches. In parallel, a Raman assisted OTDR is shown to increase the dynamic range of the reflectometry measurement, thus enabling to detect more faults in the network, and especially fibre breaks after the splitter.
Keywords :
monitoring; optical fibre networks; centralised optical monitoring; optical time domain reflectometry techniques; structured passive optical networks; Fault detection; Laser noise; Monitoring; Optical fiber networks; Optical network units; Passive optical networks; Pulse amplifiers; Pump lasers; Stimulated emission; Switches; OTDR; PON; Raman; monitoring;
Conference_Titel :
Transparent Optical Networks, 2007. ICTON '07. 9th International Conference on
Conference_Location :
Rome
Print_ISBN :
1-4244-1249-8
Electronic_ISBN :
1-4244-1249-8
DOI :
10.1109/ICTON.2007.4296060