DocumentCode
786522
Title
Measurement of gas diffusion coefficient using photonic crystal fiber
Author
Hoo, Y.L. ; Jin, W. ; Ho, H.L. ; Wang, D.N.
Author_Institution
Dept. of Electr. Eng., Hong Kong Polytech. Univ., Kowloon, China
Volume
15
Issue
10
fYear
2003
Firstpage
1434
Lastpage
1436
Abstract
We report the use of photonic crystal fiber (PCF) for the measurement of gas diffusion constant. PCF has uniform airhole columns along the fiber length that provide the basis for the study of gas diffusion based on the capillary method. The gas concentration within the airhole columns is monitored by measuring the attenuation of light through the PCF caused by the evanescent wave absorption of light by the gas sample.
Keywords
diffusion; fibre optic sensors; monitoring; photonic crystals; air-hole columns; airhole columns; capillary method; evanescent wave absorption; fiber length; fibre optic sensors; gas concentration; gas diffusion coefficient; gas sample; light attenuation measurement; monitored; photonic crystal fiber; Absorption; Attenuation measurement; Chemicals; Diffusion processes; Gases; Manufacturing; Monitoring; Optical attenuators; Optical fibers; Photonic crystal fibers;
fLanguage
English
Journal_Title
Photonics Technology Letters, IEEE
Publisher
ieee
ISSN
1041-1135
Type
jour
DOI
10.1109/LPT.2003.818241
Filename
1232982
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