Thermo-optic effect of liquid materials based on side polished fiber Bragg grating sensor

被引：0
|
作者：
Tang J. [1 ,2 ]
Chen Z. [1 ,2 ]
Fan R. [2 ]
Zhang J. [1 ,2 ]
Li S. [2 ]
机构：
[1] Key Lab. of Opto-Electronic Information and Sensing Tech. of Guangdong Higher Education Institutes, Jinan University, Guangzhou
[2] Department of Opto-Electronic Engineering, Jinan University, Guangzhou
来源：
Zhongguo Jiguang/Chinese Journal of Lasers | 2010年 / 37卷 / 06期
关键词：
Fiber Bragg grating; Refractive index; Sensors; Side polishing; Thermo-optic effect;
D O I：
10.3788/CJL20103706.1434
中图分类号：
学科分类号：
摘要：
Thermo-optic effect of liquid materials at optical wavelength of 1550 nm is investigated by use of a side polished fiber Bragg grating (FBG) sensor with double reflective Bragg wavelengths. The relationship between the difference of double reflective Bragg wavelengths of sensor and refractive index of overlaid liquid material is measured, and the relationship between the difference of double reflective Bragg wavelengths and temperature is measured when a liquid material overlays on the polished region of sensor. By analysis of the relationships above the thermo-optic coefficients of three liquids made by Cargille Lab are obtained at optical wavelength of 1550 nm. The fiber sensor could be used for measurement of thermo-optic characteristic of liquid materials as their refractive indexes are in the range of 1.4198-1.4479.
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页码：1434 / 1439
页数：5
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