Dual-wavelength FBG inscribed by femtosecond laser for simultaneous measurement of high temperature and strain

被引：20

作者：

Zhu, Yong ^{[1
]}

Mei, Hao ^{[1
]}

Zhu, Tao ^{[1
]}

Zhang, Jie ^{[1
]}

Yin, Shizhuo ^{[2
]}

机构：

[1] Chongqing Univ, Key Lab Optoelect Technol & Syst, Minist Educ China, Coll Optoelect Engn, Chongqing 400030, Peoples R China

[2] Penn State Univ, Dept Elect Engn, University Pk, PA 16802 USA

来源：

CHINESE OPTICS LETTERS | 2009年 / 7卷 / 08期

基金：

中国国家自然科学基金;

关键词：

BRAGG-GRATINGS; PHASE MASK; SENSORS; DISCRIMINATION;

D O I：

10.3788/COL20090708.0675

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A novel fiber Bragg grating (FBG) with two transmission dips in 1310- and 1550-nm regions is proposed and inscribed by an infrared femtosecond laser. Formed by multi-photon ionization, this type of grating can withstand temperature as high as 800 degrees C which makes it suitable for harsh environment sensing. In addition, the temperature and strain affect these two dips in different ways, which enables simultaneous strain and temperature sensing. The fabrication, spectrum characterization, and temperature performance of this grating are introduced.

引用

页码：675 / 678

页数：4

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