Relationship between temporal and spatial reflectogram scales in fiber optical time domain reflectometry systems

被引：0

作者：

Bisyarin M.A. ^{[1
,2
]}

Kotov O.I. ^{[2
]}

Liokumovich L.B. ^{[2
]}

Ushakov N.A. ^{[2
]}

机构：

[1] Saint-Petersburg State University, Saint-Petersburg

[2] Saint-Petersburg State Politechnical University, Saint-Petersburg

来源：

Optical Memory and Neural Networks | 2013年 / 22卷 / 2期

关键词：

distributed sensors; fiber optic sensors; optical time domain reflectometry; rayleigh scattering; reflectogram scale;

D O I：

10.3103/S1060992X1302001X

中图分类号：

学科分类号：

摘要：

Correspondence between time instant of the reflectogram and position of the optical fiber sector at which the scattering occurred is analyzed for the longitudinally inhomogeneous optical fiber and the external perturbation of the general kind. Conditions on the rate of the refractive index and external perturbation dependence on the longitudinal coordinate are stated that imply explicit formulae for shifts of scattering segments of various position with respect to the external perturbation. The effects are numerically estimated in the cases of geometric elongation and heating of the fiber. © 2013 Allerton Press, Inc.

引用

页码：104 / 111

页数：7