Development of micro-tapered long-period fiber gratings written in tapered fibers with different diameters for enhancement of strain sensitivity

被引：1
|
作者：
Yoon, Min-Seok [1 ]
Kim, Sung-Jae [1 ]
Kim, Hyun-Joo [1 ]
Han, Young-Guen [1 ]
机构：
[1] Hanyang Univ, Dept Phys, Seoul 133791, South Korea
来源：
22ND INTERNATIONAL CONFERENCE ON OPTICAL FIBER SENSORS, PTS 1-3 | 2012年 / 8421卷
关键词：
Micro-tapered long period fiber gratings; strain sensor; temperature sensor; SENSORS;
D O I：
10.1117/12.966376
中图分类号：
TP7 [遥感技术];
学科分类号：
081102 ; 0816 ; 081602 ; 083002 ; 1404 ;
摘要：
Micro-tapered long-period fiber gratings (MT-LPFGs) written in tapered fibers with different diameters of 125, 100, 75, and 50 mu m are fabricated and their transmission characteristics with variations in strain and temperature are investigated. Since the variation of the refractive index with the applied strain change is inversely proportional to the cross section area of the MT-LPFGs, the strain sensitivity of the MT-LPFGs is further improved. The temperature sensitivity is also enhanced by reducing the diameter of the tapered fiber. The experimental results are very useful for discrimination of strain and temperature sensitivities.
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页数：4
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