High-sensitivity temperature sensor based on Bragg grating in BDK-doped photosensitive polymer optical fiber

被引：0
|
作者：
程旭升 [1 ]
邱薇薇 [1 ]
武文轩 [2 ]
罗艳华 [2 ]
田秀杰 [2 ]
张其锦 [2 ]
朱冰 [1 ]
机构：
[1] Department of Electronic Engineering and Information Science, University of Science and Technology of China
[2] Anhui Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering,University of Science and Technology of China
来源：
Chinese Optics Letters | 2011年 / 9卷 / 02期
基金：
中国博士后科学基金; 中国国家自然科学基金;
关键词：
POF; High-sensitivity temperature sensor based on Bragg grating in BDK-doped photosensitive polymer optical fiber; FBG;
D O I：
暂无
中图分类号：
TN253 [光纤元件];
学科分类号：
0702 ; 070207 ;
摘要：
A single-mode polymer optical fiber (POF) with highly photosensitive core doped with benzil dimethyl ketal (BDK) is fabricated and used for writing Bragg grating through the two-beam interference method. The Bragg wavelength of the grating is about 1570 nm, while the full-width at half-maximum (FWHM) of the reflection peak is 0.3 nm. The temperature response of POF Bragg grating is theoretically analyzed and experimentally measured in contrast to silica optical fiber Bragg grating (FBG). The result shows that the temperature character of POF Bragg grating is negative, which is opposite to the silica optical FBG. The absolute value of the temperature response of POF Bragg grating is one order of magnitude higher than that of the silica optical FBG, making POF Bragg grating appear to be very attractive for constructing temperature sensors with high resolution.
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页码：12 / 14
页数：3
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