Title :
Fault location technique for in-service branched optical fiber networks
Author :
Sankawa, Izumi ; Furukawa, Shin-Ichi ; Koyamada, Yahei ; Izumita, Hisashi
Author_Institution :
NTT Transmission Syst. Labs., Ibaraki, Japan
Abstract :
A fault location technique using an optical time-domain reflectometer (OTDR) for branched optical fiber networks is described. The required dynamic range of the OTDR for locating a fiber failure occurring after N-way optical power splitting has been studied. In addition, it has been demonstrated that by using an OTDR operating at 1.65 mu m, it is possible to locate one fiber failure among 16-branched fibers without disrupting the 1.31- mu m and 1.55- mu m services.<>
Keywords :
fault location; optical fibres; optical links; optical testing; time-domain reflectometry; 1.31 micron; 1.55 micron; 1.65 micron; N-way optical power splitting; OTDR; dynamic range; fault location technique; fiber failure; in-service branched optical fiber networks; optical time-domain reflectometer; Cable TV; Dynamic range; Fault location; Loss measurement; Optical fiber LAN; Optical fiber cables; Optical fiber communication; Optical fiber networks; Power measurement; Telephony;
Journal_Title :
Photonics Technology Letters, IEEE
