Interrogation of Intensity Modulation Fiber Bragg Grating Sensor Based on Loss-Tunable Corrugated Long Period Fiber Grating Filter

被引：0

作者：

Chiang, Chia-Chin ^{[1
]}

Hsieh, Min-Yuan ^{[1
]}

机构：

[1] Natl Kaohsiung Univ Appl Sci, Dept Mech Engn, Kaohsiung 807, Taiwan

来源：

THIRD ASIA PACIFIC OPTICAL SENSORS CONFERENCE | 2012年 / 8351卷

关键词：

Optical fiber sensors; Fiber gratings; Bragg gratings; STRAIN; SYSTEM;

D O I：

10.1117/12.914386

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：

Current study utilizes the corrugated long period fiber grating (CLPFG) edge filter and fiber Bragg grating (FBG) strain sensor to configure the high speed strain sensing system by intensity modulation. For static calibration, the FBG wavelength shift is linear with the modulated intensity by CLPFG while the linearity (R-2) of the FBG intensity and strain is 0.994. For dynamic strain sensing, the performance of this system is good as the strain gage at 500Hz under the various strain fields. Experimental results also indicate that the optimal sensitivity is 11.08 mV/mu epsilon.

引用

页数：6

共 9 条

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