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

Volume

10

Issue

4

fYear

1998

fDate

4/1/1998 12:00:00 AM

Firstpage

570

Lastpage

572

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;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/68.662597

Filename

662597