Simultaneous Measurement of External Refractive Index and Temperature by Using a Side-polished Fiber Bragg Grating with a Polymer Overlay

被引：0
|
作者：
Kim, Hyun-Joo [1 ]
Jun, Na-Ram [1 ]
Lee, Sang Bae [2 ]
Han, Young-Geun [1 ]
机构：
[1] Hanyang Univ, Dept Phys, 17 Haengdang Dong, Seoul 133791, South Korea
[2] Korea Inst Sci & Technol, Seoul 136791, South Korea
来源：
KOREAN JOURNAL OF OPTICS AND PHOTONICS | 2010年 / 21卷 / 05期
关键词：
Simultaneous measurement; Side-polished fiber Bragg grating; Polymer overlay; Chemical sensor; Temperature sensor;
D O I：
10.3807/KJOP.2010.21.5.190
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A hybrid grating sensing device based on a side-polished fiber Bragg grating (FBG) with a polymer overlay is proposed for simultaneous measurement of external refractive index and temperature. The side-polished FBG, which is insensitive to ambient index change, is utilized for detecting temperature variation, and the polymer overlay is coated on the side-polished FBG for measurement of ambient index change. The temperature sensitivities of the side-polished FBG and the polymer overlay were measured to be 0.01 nm/degrees C and -0.58 nm/degrees C, respectively, in a temperature range from 30 degrees C to 100 degrees C. The ambient index sensitivities of the polymer overlay were measured to be 498.8 nm/RIU in an ambient index range from 1.33 to 1.39, 694.9 nm/RIU from 1.39 to 1.42, and 1312 nm/RIU from 1.42 to 1.44.
引用
收藏
页码：190 / 194
页数：5
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