Electronic International Standard Serial Number (EISSN)
In this letter, we propose a new fiber supervision technique for passive optical networks (PONs). The new approach allows for real-time in-service fiber fault detection and localization at any individual fiber in the PON even after high splitting ratios and optical amplifiers without optical distribution network modifications. It consists of real time permanent power monitoring of dedicated supervision wavelengths transmitted between the central office and each remote location. This new proposal relies on synchronized clocks between the test equipment and the remote devices, thus being adequate for its use in fixed-mobile convergent PONs. This novel technique has been successfully demonstrated in a commercial in-service gigabit PON system with 1:64 splitting ratio.
Optical time domain reflectometry, Mobile communication, Optical fiber communication, Optical fiber measurements