Optical Fiber Hydrogen Sensor based on Micro Interferometer

被引：2

作者：

Wang, Min ^{[1
]}

Cheng, Jie ^{[1
]}

Yu, Xun ^{[2
]}

Dai, Jixiang ^{[1
]}

Zhang, Guilin ^{[1
]}

Yang, Minghong ^{[1
]}

机构：

[1] Wuhan Univ Technol, Natl Engn Lab Opt Fiber Sensing Technol, Wuhan 430070, Peoples R China

[2] Huazhong Univ Sci Technol, Dept Control Sci & Engn, Wuhan 430074, Peoples R China

来源：

22ND INTERNATIONAL CONFERENCE ON OPTICAL FIBER SENSORS, PTS 1-3 | 2012年 / 8421卷

基金：

美国国家科学基金会;

关键词：

Michelson interferometer; Femtosecond laser; Optical fiber hydrogen sensor; Magnetron sputtering; BeamPROP; LONG-PERIOD FIBER; FEMTOSECOND LASER;

D O I：

10.1117/12.970263

中图分类号：

TP7 [遥感技术];

学科分类号：

081102 ; 0816 ; 081602 ; 083002 ; 1404 ;

摘要：

In this paper, a femtosecond (fs) laser fabricated fiber in-line micro Michelson interferometer (MI) with palladium (Pd) film deposited on the fiber end face for hydrogen detection is proposed and demonstrated. Beam Propagation Method (BPM) is used to analyze the influence of refractive index (RI) of Pd film on reflection spectrum. As for the experimental results, the variation of optical power and shift of interference peak wavelength are -4.904 dBm and -4.2 nm respectively with the increase of hydrogen concentration from 0% to 16%. The developed system has high potential in hydrogen sensing with high sensitivity.

引用

页数：4

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