Temperature Robust Refractive Index Sensor Based on a Photonic Crystal Fiber Interferometer

被引:30
作者
Park, Kwan Seob [1 ]
Choi, Hae Young [1 ]
Park, Seong Jun [1 ]
Paek, Un-Chul [1 ]
Lee, Byeong Ha [1 ]
机构
[1] Gwangju Inst Sci & Technol, Dept Informat & Commun, Kwangju 500712, South Korea
关键词
External refractive index (ERI); low-temperature cross sensitivity; photonic crystal fiber (PCF);
D O I
10.1109/JSEN.2009.2037510
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 present a simple photonic crystal fiber (PCF)-based reflection type interferometer insensitive to temperature for refractive-index measurement. By simply collapsing the airholes at a middle point and forming a reflector at the end of a PCF, the interferometer could be implemented. The PCF sensor showed a low thermal sensitivity even without any compensation process. The feasibility as a refractive-index sensor is demonstrated by presenting the spectral response to liquids having various refractive indexes and to temperature. The implemented sensor showed a good sensitivity of 850 nm/RUI (refractive unit index).
引用
收藏
页码:1147 / 1148
页数:2
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