Sensitivity-enhanced optical temperature sensor with cascaded LPFGs

被引：0
|
作者：
Tsutsumi, Yasuhiro [1 ]
Miyoshi, Yuji [1 ]
Ohashi, Masaharu [1 ]
机构：
[1] Osaka Prefecture Univ, 1-1 Gakuen Cho, Naka, Osaka 5998531, Japan
来源：
2011 ASIA COMMUNICATIONS AND PHOTONICS CONFERENCE AND EXHIBITION (ACP) | 2012年
关键词：
mechanical LPFG; cascaded LPFGs; heat-shrinkable tube; LPFG insertion loss; temperature sensor;
D O I：
暂无
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：
We propose a new structure of optical fiber temperature sensor with cascaded long-period fiber gratings (LPFGs) and investigate the temperature dependent loss of cascaded LFPGs. Each of the cascaded LPFGs has the same resonance wavelength with the same temperature change, because the cascaded LPFGs are made of a heat-shrinkable tube and a screw. The total resonance loss of proposed cascaded LPFGs shows higher temperature sensitivity than that of a single LPFG. The thermal coefficient of 4-cascaded LPFG also shows more than 4 times larger than that of a single one.
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页数：6
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