Title :
A technique to measure distributed strain in optical fibers
Author :
Horiguchi, Tsuneo ; Kurashima, Toshio ; Tateda, Mitsuhiro
Author_Institution :
NTT Transmission Syst. Lab., Ibaraki, Japan
fDate :
5/1/1990 12:00:00 AM
Abstract :
The technique is based on Brillouin optical-fiber time-domain analysis (BOTDA), which uses Brillouin interaction between counterpropagating pump and probe light waves. Experimental results for fibers wound on drums at various tensions are presented. A strain measurement accuracy of better than 2*10/sup -5/ and a spatial resolution of 100 m are achieved.<>
Keywords :
Brillouin spectra; fibre optics; optical testing; strain measurement; time-domain reflectometry; Brillouin optical-fiber time-domain analysis; counterpropagating; distributed strain; fibre strain measurement; fibre wound drums; optical fibers; probe light waves; pump light waves; spatial resolution; strain measurement accuracy; tensions; Fiber lasers; Frequency; Laser excitation; Optical fiber testing; Optical fibers; Optical pumping; Probes; Pump lasers; Semiconductor lasers; Strain measurement;
Journal_Title :
Photonics Technology Letters, IEEE
