Title :
OTDR in monomode fibres at 1.3 ¿m using a semiconductor laser
Author_Institution :
British Telecom Research Laboratories, Ipswich, UK
Abstract :
Optical time domain reflectometry (OTDR) in monomode optical fibre using a 1.3 ¿m semiconductor laser source is reported for the first time. A nonreflecting fibre defect may be accurately located at a range exceeding 17 dB one-way loss by observing the cessation of the Rayleigh backscattered signal.
Keywords :
backscatter; light scattering; measurement by laser beam; optical fibres; optical testing; semiconductor junction lasers; time-domain reflectometry; Rayleigh backscattered signal; monomode optical fibre; nonreflecting fibre defect; one-way loss; optical time domain reflectometry; semiconductor laser source;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19810045
