| 利用LD自混合干涉的光纤Fabry-Perot传感器 |
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| 引用本文： | 黄民双,冯音琦.利用LD自混合干涉的光纤Fabry-Perot传感器[J].压电与声光,2006,28(6):634-636. |
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| 作者姓名： | 黄民双 冯音琦 |
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| 作者单位： | 北京石油化工学院,光机电装备技术北京市重点实验室,北京,102617 |
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| 基金项目： | 北京市教育委员会科技发展计划面上项目(KM200610017005) |
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| 摘 要： | 提出了基于半导体激光器(LD)自混合干涉原理的光纤Fabry-Perot(F-P)传感器。采用F-P腔模型推导出了LD输出功率、频率与外部光纤F-P腔长变化的理论关系式,分析讨论了这种传感器的分辨率、测量范围、线性度、灵敏度等特性。实验结果与理论分析基本吻合。与现有的外腔式F-P干涉光纤传感器相比,LD自混合干涉光纤F-P传感器具有结构简单、紧凑、易准直等优点。
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| 关 键 词： | LD自混合干涉 光纤Fabry-Perot腔 光纤传感器 |
| 文章编号： | 1004-2474(2006)06-0634-03 |
| 收稿时间： | 2006-05-18 |
| 修稿时间： | 2006年5月18日 |
A Fabry-Perot Fiber Optic Sensor Using the Self-mixing Effect of LD |
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| HUANG Min-shuang,FENG Yin-qi.A Fabry-Perot Fiber Optic Sensor Using the Self-mixing Effect of LD[J].Piezoelectrics & Acoustooptics,2006,28(6):634-636. |
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| Authors: | HUANG Min-shuang FENG Yin-qi |
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| Affiliation: | Beijing Institute Petrochemical Technology, Opto-mechatronic Equipment Technology Beijing Area Major Laboratory,Beijing, 102617 |
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| Abstract: | A Fabry-Perot(F-P) fiber optic sensor based on the self-mixing effect of laser diode(LD) is presented.Using a F-P cavity model,the relationships between the output-power and frequency of LD with the length change and the direction of extrinsic fiber F-P cavity are educed in theory.Its characteristics,such as resolution,measurement range,linearity and sensitivity are analyzed.An experiment system is developed.Experimental results are consistent with the theoretical analytic demonstration.Compared with extrinsic Fabry-Perot fiber optic sensors,the new sensor is characterized by simple structure and better stability. |
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| Keywords: | self-mixing effect of LD fiber optic F-P cavity fiber optic sensor |
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