Abstract
This paper reports the development of a new zeolite thin film-coated long period fiber grating (LPFG) sensor for direct measurement of trace organic vapors. The sensor was fabricated by growing pure silica MFI-type zeolite thin film on the optical fiber grating by in situ hydrothermal crystallization. The sensor measures chemical vapor concentration by monitoring the molecular adsorption-induced shift of LPFG resonant wavelength in near infrared (IR) region. Upon loading analyte molecules, the zeolite's refractive index changes in the close vicinity of the fiber index where the LPFG has a large response to achieve high sensitivity.
Recommended Citation
J. Zhang et al., "Zeolite Thin Film-coated Long Period Fiber Grating Sensor for Measuring Trace Chemical," Optics Express, Optical Society of America, May 2008.
The definitive version is available at https://doi.org/10.1364/OE.16.008317
Department(s)
Electrical and Computer Engineering
Sponsor(s)
United States. Department of Energy
Keywords and Phrases
Fiber Optics Sensors; Gratings; Nanomaterials
International Standard Serial Number (ISSN)
1094-4087
Document Type
Article - Journal
Document Version
Final Version
File Type
text
Language(s)
English
Rights
© 2008 Optical Society of America, All rights reserved.
Publication Date
01 May 2008
