Title :
Optical time-domain reflectometer with a semiconductor laser amplifier
Author :
Suzuki, Kenji ; Horiguchi, Takeshi ; Seikai, S.
Author_Institution :
NTT Ibaraki Electrical Communication Laboratory, Tokai, Japan
Abstract :
An optical time-domain reflectometer (OTDR) using a semiconductor laser as an optical pulse generator and as a back-scattered optical signal amplifier is reported. It is found that the detectable one-way loss of the apparatus is improved by 4.5 dB compared with the conventional OTDR using direct detection.
Keywords :
backscatter; optical fibres; optical testing; time-domain reflectometry; OTDR; backscattered optical signal; detectable one-way loss improvement; dynamic range extension; optical fibre testing; optical pulse generator; optical time-domain reflectometer; semiconductor laser amplifier; single-mode fibres;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19840489
