DocumentCode
1088146
Title
Simultaneous Measurement of Refractive Index and Temperature by Using Dual Long-Period Gratings With an Etching Process
Author
Yan, Jinhua ; Zhang, A. Ping ; Shao, Li-Yang ; Ding, Jin-Fei ; He, Sailing
Author_Institution
Zhejiang Univ. of Technol., Hangzhou
Volume
7
Issue
9
fYear
2007
Firstpage
1360
Lastpage
1361
Abstract
A new structure of long-period grating (LPG) sensor is introduced for simultaneous measurement of the refractive index (RI) and temperature. This type of grating device consists of two LPG sections, one of which is post etched by hydrofluoric acid (HF) solution and, therefore, has an improved RI sensitivity (the demonstrated improvement of sensitivity is 3.6 times). The experimental results show that this LPG sensor has a good performance in terms of linearity and sensitivity.
Keywords
Bragg gratings; etching; fibre optic sensors; refractive index measurement; temperature measurement; dual long-period gratings; etching process; grating device; hydrofluoric acid solution; refractive index; temperature measurement; Biosensors; Bragg gratings; Chemical and biological sensors; Chemical sensors; Etching; Fiber gratings; Helium; Optical fiber sensors; Refractive index; Temperature sensors; Long-period grating (LPG); optical fiber sensor; refractive index (RI) measurement;
fLanguage
English
Journal_Title
Sensors Journal, IEEE
Publisher
ieee
ISSN
1530-437X
Type
jour
DOI
10.1109/JSEN.2007.905037
Filename
4286933
Link To Document