Hydrogen sensor based on air-gap long period fiber gratings

Peiping Wu,Gueiru Lin,Yuli Wang,Mingyue Fu,Wenfung Liu,Haojan Sheng

Opto-Electronics and Communications Conference（2011）

Cited 23|Views3

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Abstract

The hydrogen gas sensor based on air-gap long period fiber grating (AG-LPG) with the coated Pd thin-film is experimentally demonstrated with the sensitivity of 0.165 nm/% and can detect the minimum concentration of 606.06 ppm.

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Key words

diffraction gratings,gas sensors,metallic thin films,palladium,pd,air gap long period fiber gratings,coated palladium thin film,hydrogen gas sensor,minimum concentration,thin film,semiconductor lasers,gallium arsenide

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