Optical inclinometer based on a single long-period fiber grating combined with a fused taper

被引：106

作者：

Frazao, O.

Falate, R.

Fabris, J. L.

Santos, J. L.

Ferreira, L. A.

Araujo, F. M.

机构：

[1] INESC Porto, P-4169007 Oporto, Portugal

[2] Univ Tecnol Fed Parana, BR-80230901 Curitiba, Parana, Brazil

[3] Univ Porto, Fac Ciencias, Dept Fis, P-4169007 Oporto, Portugal

来源：

OPTICS LETTERS | 2006年 / 31卷 / 20期

关键词：

D O I：

10.1364/OL.31.002960

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A new concept to measure rotation angles based on a fiber-optic modal Mach-Zehnder interferometer is demonstrated by using a nonadiabatic taper cascaded with a long-period fiber grating. Information about the magnitude of the rotation angle can be obtained from the measurement of the interference pattern visibility, and under certain conditions it is also possible to obtain the sign of the rotation angle from the induced phase variation in the fiber interferometer. (c) 2006 Optical Society of America.

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页码：2960 / 2962

页数：3

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