A METHOD OF MEASURING FLEXURAL STRAINS WITH THE USE OF FIBER-OPTIC WAVEGUIDES WITH LOW RELATIVE FREQUENCY

被引：2

作者：

Kulchin, Yu. N. ^{[1
]}

Vitrik, O. B. ^{[1
]}

Dyshlyuk, A. V. ^{[1
]}

Gurbatov, S. O. ^{[1
]}

机构：

[1] Russian Acad Sci IAPU DVO RAN, Inst Automat & Control Proc, Far Eastern Branch, Vladivostok, Russia

来源：

MEASUREMENT TECHNIQUES | 2010年 / 53卷 / 02期

基金：

俄罗斯基础研究基金会;

关键词：

fiber waveguide; bending measurement; fiber-optic sensor; bend losses; SINGLE-MODE FIBERS;

D O I：

10.1007/s11018-010-9480-3

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A fiber-optic method of monitoring flexural strains with the use of fiber-optic waveguides with low relative frequency is proposed. Fiber-optic waveguides that function in a single-mode regime with low relative frequency should be used to measure low-curvature flexural strain. Moreover, a 140-fold increase in the amplitude sensitivity of the waveguide to macroscopic bending is demonstrated. It is shown that zero jump in the indices of refraction at the interface of the waveguide's optical fiber with the external medium must be maintained in order to suppress fluctuations in the dependence of the coefficient of attenuation of the power of the fundamental mode on the bending radius.

引用

页码：184 / 187

页数：4

共 7 条

[1]

ASH J, 1992, SENSORS MEASUREMENT, V1

[2]

CHITARU C, 2003, ROMANIAN REPORTS PHY, V55, P144

[3] Bend loss in single-mode fibers [J].

Faustini, L ;

Martini, G .

JOURNAL OF LIGHTWAVE TECHNOLOGY, 1997, 15 (04) :671-679

[4]

Friebele EJ, 1998, OPT PHOTONICS NEWS, V9, P33, DOI 10.1364/OPN.9.8.000033

[5]

Inaudi D, 2002, OFS 2002: 15TH OPTICAL FIBER SENSORS CONFERENCE TECHNICAL DIGEST, P391, DOI 10.1109/OFS.2002.1000635

[6] BENDING LOSSES OF COATED SINGLE-MODE FIBERS - A SIMPLE APPROACH [J].

RENNER, H .

JOURNAL OF LIGHTWAVE TECHNOLOGY, 1992, 10 (05) :544-551

[7]

SNIDER D, 1987, THEORY OPTICAL WAVEG

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