Photonic Bandgap Fiber for Infiltration-Free Refractive-Index Sensing

被引:1
|
作者
Yong, Derrick [1 ,2 ]
Yu, Xia [1 ]
Ren, Guobin [3 ,4 ]
Zhang, Huiyu [1 ]
Zhang, Ying [1 ]
Chan, Chi Chiu [2 ]
Wei, Huifeng [5 ]
Tong, Weijun [5 ]
机构
[1] Singapore Inst Mfg Technol, Singapore 638075, Singapore
[2] Nanyang Technol Univ, Sch Chem & Biomed Engn, Div Bioengn, Singapore 637457, Singapore
[3] Beijing Jiaotong Univ, Inst Lightwave Technol, All Opt Network, Key Lab, Beijing 100044, Peoples R China
[4] Beijing Jiaotong Univ, Adv Telecommun Network EMC, Beijing 100044, Peoples R China
[5] Yangtze Opt Fiber & Cable Co Ltd, R&D Ctr, State Key Lab Opt Fiber & Cable Manufacture Techn, Wuhan 430073, Peoples R China
关键词
Optical fiber sensors; photonic crystals; CRYSTAL FIBERS; PLASMON RESONANCE; GUIDANCE;
D O I
10.1109/JSTQE.2011.2179526
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 report a novel photonic bandgap sensor, comprising a D-shaped fiber fabricated via side polishing. It takes advantage of measurand-elicited refractive-index profile changes upon exposure of its side-polished region to an ambient liquid. The bandgap shift can be induced by perturbations in close proximity to the fiber core, such as the change of refractive index in the surrounding. The side-polished all-solid photonic bandgap fiber utilized offers an infiltration-free sensing mechanism, which eliminates difficult air-hole infiltration and evacuation processes experienced by most photonic crystal fiber-based index sensors. Experimental results demonstrated the repeatability and linearity in refractive-index sensing from 1.31 to 1.43 with a sensitivity of 10(-5) refractive-index units (RIUs). Additional study was also conducted to identify the significance of polishing depths in relation to the sensor performance.
引用
收藏
页码:1560 / 1565
页数:6
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