A technique to measure distributed strain in optical fibers

Horiguchi, T.; Kurashima, T.; Tateda, M.
NTT Transmission Syst. Lab., Ibaraki

Photonics Technology Letters, IEEE, 1990
Volume :  2 ,  Issue:5
On page(s): 352 - 354
Digital Object Identifier :  10.1109/68.54703

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 2×10-5 and a spatial resolution of 100 m are ...