Title :
1.55 μm OTDR for single-mode optical fibre longer than 110 km
Author :
Nakazawa, Masataka ; Morishige, Y. ; Toratani, H.
Author_Institution :
NTT Ibaraki Electrical Communication Laboratory, Tokai, Japan
Abstract :
An optical time domain reflectometer for a single-mode optical fibre longer than 110 km has been newly demonstrated using a 1.55 μm Er3+: glass laser, a TeO2 acousto-optical directional coupler and a Ge avalanche photodiode.
Keywords :
backscatter; fault location; optical fibres; optical links; optical testing; time-domain reflectometry; 1.55 microns wavelength; Er3+:glass laser; Ge avalanche photodiode; OTDR; TeO2 acousto-optical directional coupler; backscattering technique; fibre cables; optical communication; optical testing; optical time domain reflectometer; single-mode optical fibre; ultralong fault location system;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19840219
