Title :
Optical time domain reflectometry by photon counting
Author :
Healey, P. ; Hensel, P.
Author_Institution :
Post Office Research Centre, Ipswich, UK
Abstract :
A photon counting technique has been used to extend greatly the range of optical time domain reflectometry or `back-scatter¿ for fault location in optical fibre systems. A range of more than 40 dB of one-way fibre loss has been achieved even when the break was index-matched to eliminate any reflection.
Keywords :
backscatter; fault location; optical fibres; optical links; photon counting; time-domain reflectometry; backscatter; fault location; optical fibre systems; optical time domain reflectometry; photon counting technique;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19800438
