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单端腐蚀光纤布拉格光栅在低折射率区的理论模型及设计

Theoretical Model and Design of Single-End Etched Fiber Bragg Grating in Low Refractive-Index Area

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摘要

研究单端腐蚀光纤布拉格光栅(FBG)在低折射率区(约1.333~1.360)对折射率与温度同时测量的理论模型,分析其主要结构参数对折射率灵敏度和线性度的影响,建立相应的线性近似理论和误差分析方法。理论仿真结果表明,可通过减小腐蚀区的直径或选择光栅周期较大的FBG制作传感器来提高折射率灵敏度,但这同时会降低传感器的线性度及增大折射率灵敏度的理论误差。在此理论分析基础上,设计并制作一个单端腐蚀FBG,进行相应实验研究,实验结果与仿真结果一致。

Abstract

The theoretical model of single-end etched fiber Bragg grating (FBG) for simultaneous measurements of surrounding refractive index (SRI) and temperature in the low refractive-index area (from about 1.333 to 1.360) is researched, the effects of the structural parameters on the SRI sensitivity and linearity are analyzed in detail, and the corresponding methodology of linear approximation and error analysis is established. Simulated results show that the SRI sensitivity can be increased by reducing the diameter of the etched region or selecting the FBG with a relative bigger grating pitch for the fabrication of the sensor, however, these will cause not only the decline in the linearity but also the rise in theoretical error of the SRI sensitivity of the sensor. Based on the theoretical analysis, a single-end etched FBG is designed and fabricated for the corresponding experiments, the results of which are in accord with the simulated ones.

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中图分类号:TN253

DOI:10.3788/aos201131.0406004

所属栏目:光纤光学与光通信

基金项目:国家自然科学基金(50876120)和重庆市自然科学基金(CSTC,2010BB2298)资助课题。

收稿日期:2010-08-25

修改稿日期:2010-10-11

网络出版日期:0001-01-01

作者单位    点击查看

罗彬彬:成都电子科技大学光电信息学院, 四川 成都 610054重庆理工大学电子信息工程系, 重庆 400054
赵明富:重庆理工大学电子信息工程系, 重庆 400054
周晓军:成都电子科技大学光电信息学院, 四川 成都 610054
黄德翼:重庆理工大学电子信息工程系, 重庆 400054
曹雪梅:重庆理工大学电子信息工程系, 重庆 400054

联系人作者:罗彬彬(luobinbin@cqut.edu.cn)

备注:罗彬彬(1981—),男,讲师,博士研究生,主要从事光纤Bragg光栅生化传感器技术方面的研究。

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引用该论文

Luo Binbin,Zhao Mingfu,Zhou Xiaojun,Huang Deyi,Cao Xuemei. Theoretical Model and Design of Single-End Etched Fiber Bragg Grating in Low Refractive-Index Area[J]. Acta Optica Sinica, 2011, 31(4): 0406004

罗彬彬,赵明富,周晓军,黄德翼,曹雪梅. 单端腐蚀光纤布拉格光栅在低折射率区的理论模型及设计[J]. 光学学报, 2011, 31(4): 0406004

被引情况

【1】吴浩伟,应朝福,彭保进,徐斐,赵亚辉. 基于薄芯光纤模态干涉技术的折射率传感特性实验研究. 光子学报, 2011, 40(12): 1881-1883

【2】罗彬彬,赵明富,周晓军,石胜辉,曹阳,韩汐,曹雪梅. 基于结构化光纤Bragg光栅的折射率梯度传感器研究. 光学学报, 2012, 32(3): 306004--1

【3】陈浩,刘月明,邹建宇,夏忠诚,高晓良. 光纤水质检测技术的研究现状与发展趋势. 激光与光电子学进展, 2015, 52(3): 30006--1

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