Title :
An improved OTDR technique on nonreflective event locating accuracy with minor reflection considered
Author :
Chen, Xiang-Fei ; Mong, Yu ; Ma, Zhen-Bai ; Yin, Xiao-Ning ; Yang, Da-Rong
Author_Institution :
Opt. Fiber Commun. Inst., Nanjing Univ. of Post & Telecommun. Technol., China
fDate :
4/1/1998 12:00:00 AM
Abstract :
Improvement on the nonreflective locating accuracy is still a problem for short pulse duration of an OTDR. When the reflected term is considered, with the novel judgment function proposed in this letter, such problems can be solved. The locating precision could not exceed 1 m for OTDR pulse duration of 100 ns and 0.4 m for 50 ns.
Keywords :
high-speed optical techniques; light reflection; optical fibre communication; optical fibre testing; optical time-domain reflectometry; reflectivity; 0.4 m; 1 m; 100 ns; 50 ns; OTDR pulse duration; improved OTDR technique; judgment function; locating precision; minor reflection; nonreflective event locating accuracy; nonreflective locating accuracy; optical fibre communication; optical fibre testing; short pulse duration; Local area networks; Optical attenuators; Optical fiber LAN; Optical fiber communication; Optical fibers; Optical pulses; Optical reflection; Space vector pulse width modulation; Time domain analysis;
Journal_Title :
Photonics Technology Letters, IEEE
