Title :
In-service remote access and measurement methods for passive double star networks
Author :
Yamamoto, Fumihiko ; Sankawa, Izumi ; Furukawa, Shin-Ichi ; Koyamada, Yahei ; Takato, Norio
Author_Institution :
NTT Telecommun. Field Systems R&D Center, Ibaraki, Japan
Abstract :
A remote access and measurement system which uses wavelength division multiplexing (WDM) techniques is proposed for a passive double star network (PDSN). This system is used to demonstrate fault detection and location. In transmission experiments for the proposed system, in-service fault location does not affect the transmission characteristics at communication wavelengths. On the basis of these results, this system is suitable for characterizing branched fibers in a PDSN, and AURORA (automatic optical fiber operation support system) can access and measure branched fibers remotely by using this system
Keywords :
optical fibre subscriber loops; AURORA; WDM; automatic optical fiber operation support system; branched fibers; communication wavelengths; fault detection; fibre optic subscriber networks; in-service fault location; passive double star networks; remote access system; remote measurement system; transmission characteristics; transmission experiments; wavelength division multiplexing; Band pass filters; Optical coupling; Optical fiber communication; Optical fiber couplers; Optical fiber devices; Optical fiber losses; Optical fiber testing; Optical filters; Wavelength division multiplexing; Wavelength measurement;
Conference_Titel :
Optical/Hybrid Access Networks, 1993., 5th Conference on
Conference_Location :
Montreal, Que.
Print_ISBN :
0-7803-1249-X
DOI :
10.1109/OHAN.1993.587760
