Long-Period Grating Inscribed on Concatenated Double-Clad and Single-Clad Fiber for Simultaneous Measurement of Temperature and Refractive Index

被引：40
|
作者：
Han, Qun [1 ,2 ,3 ]
Lan, Xinwei [1 ]
Huang, Jie [1 ]
Kaur, Amardeep [1 ]
Wei, Tao [1 ]
Gao, Zhan [1 ]
Xiao, Hai [1 ]
机构：
[1] Missouri Univ Sci & Technol, Dept Elect & Comp Engn, Rolla, MO 65409 USA
[2] Tianjin Univ, Coll Precis Instrument & Optoelect Engn, Minist Educ, Tianjin 300072, Peoples R China
[3] Tianjin Univ, Key Lab Optoelect Informat Technol, Minist Educ, Tianjin 300072, Peoples R China
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 2012年 / 24卷 / 13期
基金：
中国国家自然科学基金;
关键词：
Chemical sensors; fiber gratings; fiber sensors; REFRACTOMETER; WATER;
D O I：
10.1109/LPT.2012.2196428
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：
In this letter, a kind of long-period fiber grating (LPFG) that is capable of simultaneous measurement of temperature and surrounding refractive index (RI) is fabricated and demonstrated. The compact LPFG is written on a piece of spliced standard single-mode fiber (SMF) and double-clad fiber (DCF) with the CO2 laser point-by-point irradiation technique. The LPFG section in the DCF is solely sensitive to temperature, while the section of the LPFG in the SMF is sensitive to both temperature and surrounding RI. After temperature and RI calibration, the LPFG has been used to measure the RI change of ethylene glycol with the change of temperature to demonstrate its capability for dual parameter simultaneous measurement.
引用
收藏
页码：1130 / 1132
页数：3
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