Fiber-optic Fabry-Perot sensors based on a combination of spatial-frequency division multiplexing and wavelength division multiplexing formed by chirped fiber Bragg grating pairs

被引：20

作者：

Rao, Y. J. ^{[1
]}

Ran, Z. L.

Zhou, C. X.

机构：

[1] Univ Elect Sci & Technol China, Opt Fiber Res Ctr, Sch Commun & Informat Engn, Chengdu 610054, Sichuan, Peoples R China

[2] Chongqing Univ, Dept Optoelect Engn, Chongqing 400030, Peoples R China

来源：

APPLIED OPTICS | 2006年 / 45卷 / 23期

关键词：

D O I：

10.1364/AO.45.005815

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Effective multiplexing for a very large number of fiber-optic fiber-Bragg-grating-based Fabry-Perot (FBGFP) sensors is proposed that is based on wavelength division multiplexing (WDM) and spatial-frequency division multiplexing (SFDM). For WDM, FBGFP sensors are arranged in different wavelength domains formed by a series of chirped fiber Bragg gratings with different central wavelengths while the sensors with different cavity lengths within the same wavelength domain are multiplexed by use of SFDM because they have different spatial frequencies as a result of their different cavity lengths. In principle, a thousand FBGFP sensors could be multiplexed with such an approach. The experimental results show that a strain accuracy of better than +/- 10 mu epsilon has been achieved with little cross talk. (C) 2006 Optical Society of America.

引用

页码：5815 / 5818

页数：4

共 12 条

[1] Optical fibre based absolute extrinsic Fabry-Perot interferometric sensing system [J].

Bhatia, V ;

Murphy, KA ;

Claus, RO ;

Jones, ME ;

Grace, JL ;

Tran, TA ;

Greene, JA .

MEASUREMENT SCIENCE AND TECHNOLOGY, 1996, 7 (01) :58-61

[2] IN-LINE FIBER FABRY-PEROT-INTERFEROMETER WITH HIGH-REFLECTANCE INTERNAL MIRRORS [J].

LEE, CE ;

GIBLER, WN ;

ATKINS, RA ;

TAYLOR, HF .

JOURNAL OF LIGHTWAVE TECHNOLOGY, 1992, 10 (10) :1376-1379

[3] Spatial-frequency multiplexed fiber-optic Fizeau strain sensor system with optical amplification [J].

Rao, Y ;

Jiang, J ;

Zhou, CX .

SENSORS AND ACTUATORS A-PHYSICAL, 2005, 120 (02) :354-359

[4] In-fibre Bragg grating sensors [J].

Rao, YJ .

MEASUREMENT SCIENCE AND TECHNOLOGY, 1997, 8 (04) :355-375

[5] Simultaneous strain and temperature measurement of advanced 3-D braided composite materials using an improved EFPI/FBG system [J].

Rao, YJ ;

Yuan, SF ;

Zeng, XK ;

Lian, DK ;

Zhu, Y ;

Wang, YP ;

Huang, SL ;

Liu, TY ;

Fernando, GF ;

Zhang, L ;

Bennion, I .

OPTICS AND LASERS IN ENGINEERING, 2002, 38 (06) :557-566

[6] High-resolution, wavelength-division-multiplexed in-fibre Bragg grating sensor system [J].

Rao, YJ ;

Webb, DJ ;

Jackson, DA ;

Zhang, L ;

Bennion, I .

ELECTRONICS LETTERS, 1996, 32 (10) :924-926

[7] SPATIALLY-MULTIPLEXED FIBEROPTIC BRAGG GRATING STRAIN AND TEMPERATURE SENSOR SYSTEM BASED ON INTERFEROMETRIC WAVELENGTH-SHIFT DETECTION [J].

RAO, YJ ;

KALLI, K ;

BRADY, G ;

WEBB, DJ ;

JACKSON, DA ;

ZHANG, L ;

BENNION, I .

ELECTRONICS LETTERS, 1995, 31 (12) :1009-1010

[8] Universal fiber-optic point sensor system for quasi-static absolute measurements of multiparameters exploiting low coherence interrogation [J].

Rao, YJ ;

Jackson, DA .

JOURNAL OF LIGHTWAVE TECHNOLOGY, 1996, 14 (04) :592-600

[9] DEVELOPMENT OF PROTOTYPE FIBER-OPTIC-BASED FIZEAU PRESSURE SENSORS WITH TEMPERATURE COMPENSATION AND SIGNAL RECOVERY BY COHERENCE READING [J].

RAO, YJ ;

JACKSON, DA ;

JONES, R ;

SHANNON, C .

JOURNAL OF LIGHTWAVE TECHNOLOGY, 1994, 12 (09) :1685-1695

[10]

Taylor HF., 2002, Fiber optic sensors

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