A Fiber-Bragg-Grating Sensor Interrogation System Using In-fiber Fabry-Perot Interferometer

被引：0

作者：

Wang, Ting-ting ^{[1
]}

Wang, Ming ^{[1
]}

机构：

[1] Nanjing Normal Univ, Prov Key Lab Optoelect Technol, Nanjing 210097, Jiangsu, Peoples R China

来源：

2011 INTERNATIONAL CONFERENCE ON OPTICAL INSTRUMENTS AND TECHNOLOGY: OPTICAL SENSORS AND APPLICATIONS | 2011年 / 8199卷

关键词：

Fabry-Perot interferometer; photonic crystal fiber; temperature insensitivity; wavelength decoding; Er-doped ring FBG laser;

D O I：

10.1117/12.910252

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A fiber-Bragg-grating sensor interrogation system using a in-fiber Fabry-Perot interferometer (IFFPI) is presented. The IFFPI was formed by splicing together a conventional single-mode fiber and a photonic crystal fiber with simple arc-discharge technique. The ellipsoidal air-cavity between the two fibers forms Fabry-Perot cavity. The diffraction loss can be very low due to the focusing of reentrant and very short cavity length, thus resulting in high visibility and long period. The IFFPI is used as the filter component of the interrogation system. The resolving wavelength can achieve 2pm by using an Er-doped ring FBG laser in the experimental system. The advantages of this system are an all-fiber design, temperature insensitivity, quasistatic and dynamic operation, potential high speed and large range demodulation.

引用

页数：6

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