Abstract
In recent years branched optical fiber networks have been the subject of increasing interest for cable television and fiber-to-the-home systems.1 After the installation of such networks, it is important to locate any fiber faults.2,3 In this paper, we demonstrate fault location in in-service 1:98 branched fiber networks, as shown in Fig. 1, with an optical time-domain reflectometer (OTDR) amplified by erbium-doped fibers.
© 1991 Optical Society of America
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