Frequency domain technique for multiplexing of fiber Bragg grating sensors

被引：0

作者：

Chan, PKC ^{[1
]}

Jin, W ^{[1
]}

Demokan, MS ^{[1
]}

机构：

[1] Hong Kong Polytech Univ, Dept Elect Engn, Kowloon, Peoples R China

来源：

ADVANCED PHOTONIC SENSORS AND APPLICATIONS | 1999年 / 3897卷

关键词：

optical fiber sensors; fiber Bragg gratings; frequency division multiplexing;

D O I：

10.1117/12.369345

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We report on the use of a frequency-domain reflectometry technique for multiplexing fiber Bragg grating (FBG) sensors. This technique is based on the modulation of light intensity from a broadband source by a swept-frequency RF carrier. Signals from the FBG sensors located at different positions in an array are separated in the frequency-domain and demodulated using a tunable optical filter, A three FBG sensor system is experimentally demonstrated. The potential of the technique for multiplexing a large number of FBG sensors is discussed.

引用

页码：488 / +

页数：5

共 9 条

[1] High strain monitoring in composite-wrapped concrete cylinders using embedded fiber Bragg grating arrays [J].

Davis, MA ;

Bellemore, DG ;

Putnam, MA ;

Kersey, AD ;

Slattery, KT ;

Corona, K ;

Schowengerdt, M .

INDUSTRIAL AND COMMERCIAL APPLICATIONS OF SMART STRUCTURES TECHNOLOGIES - SMART STRUCTURES AND MATERIALS 1996, 1996, 2721 :149-154

[2]

Hymans A.J., 1960, P IEE B, V107, P365, DOI 10.1049/pi-b-2.1960.0130

[3] Multiplexed Bragg grating optical fiber sensors for damage evaluation in highway bridges [J].

Idriss, RL ;

Kodindouma, MB ;

Kersey, AD ;

Davis, MA .

SMART MATERIALS & STRUCTURES, 1998, 7 (02) :209-216

[4] Investigation of interferometric noise in fiber-optic Bragg grating sensors by use of tunable laser sources [J].

Jin, W .

APPLIED OPTICS, 1998, 37 (13) :2517-2525

[5] Fiber grating sensors [J].

Kersey, AD ;

Davis, MA ;

Patrick, HJ ;

LeBlanc, M ;

Koo, KP ;

Askins, CG ;

Putnam, MA ;

Friebele, EJ .

JOURNAL OF LIGHTWAVE TECHNOLOGY, 1997, 15 (08) :1442-1463

[6] Dense wavelength division multiplexing of fibre Bragg grating sensors using CDMA [J].

Koo, KP ;

Tveten, AB ;

Vohra, ST .

ELECTRONICS LETTERS, 1999, 35 (02) :165-167

[7]

Mahafza B.R., 1998, Introduction to Radar Analysis

[8] Strain sensing of modern composite materials with a spatial wavelength-division multiplexed fiber grating network [J].

Rao, YJ ;

Jackson, DA ;

Zhang, L ;

Bennion, I .

OPTICS LETTERS, 1996, 21 (09) :683-685

[9] Fiber optic condition monitoring during a full scale destructive bridge test [J].

Storoy, H ;

Saether, J ;

Johannessen, K .

JOURNAL OF INTELLIGENT MATERIAL SYSTEMS AND STRUCTURES, 1997, 8 (08) :633-643

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