Study of fabrication and application of hollow-core photonic crystal fiber based in-line fiber-optic etalon

被引：0
|
作者：
Duan D. [1 ]
Rao Y. [1 ,2 ]
Zhu T. [1 ,2 ]
Fan Y. [1 ]
机构：
[1] Key Laboratory of Optoelectronic Technology and Systems, College of Optoelectronic Engineering, Chongqing University
[2] Key Laboratory of Broadband Optical Fiber Transmission and Communication Networks, School of Communication and Information Engineering, University of Electronic Science and Technology of China, Chengdu
来源：
Zhongguo Jiguang/Chinese Journal of Lasers | 2010年 / 37卷 / 10期
关键词：
Fabrication; Fiber optics; Fiber-optic Fabry-Perot cavity; Multiplexing; Photonic crystal fiber;
D O I：
10.3788/CJL20103710.2554
中图分类号：
学科分类号：
摘要：
Hollow-core photonic crystal fiber (HCPCF) based in-line fiber-optic etalon (ILFE), due to its high sensitivity to strain and low thermal coefficient, can be made with longer cavity length compared with traditional ILFE, making it suitable in quasi-distributed multipoint stain detection systems. The ways of enhancing the output signal of HCPCF based multiplexing strain detecting systems are analyzed. The effect of temporal coherence length of light source is analyzed through examples. A spatial-frequency division multiplexing (SFDM)/coarse-wavelength division multiplexing (CWDM) of ILFE strain sensors with four HCPCF-based ILFE strain sensors is demonstrated. The experimental results show that a strain accuracy of ±5 με can be achieved. Such an HCPCF-based ILFE strain sensor multiplexing system could be used for large engineering structure health monitoring.
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页码：2554 / 2558
页数：4
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