| 基于线阵InGaAs光电二极管阵列的光纤光栅传感解调 |
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| 引用本文： | 李国玉,刘波,郭团,张键,袁树忠,开桂云,董孝义.基于线阵InGaAs光电二极管阵列的光纤光栅传感解调[J].光子学报,2007,36(9):1591-1594. |
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| 作者姓名： | 李国玉 刘波 郭团 张键 袁树忠 开桂云 董孝义 |
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| 作者单位： | 南开大学现代光学研究所,天津,300071 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)
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天津市自然科学基金
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教育部重点实验室基金 |
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| 摘 要： | 采用线阵InGaAs光电二极管阵列和体相位光栅并结合空分复用和波分复用技术,对光纤光栅传感进行解调.设计了基于线阵InGaAs光电二极管阵列和体相位光栅的光纤光栅传感解调系统,通过系统测试和性能分析,该解调系统解调带宽42 nm,信噪比30 dB,波长偏移测量精确度±15 pm,功率测量精确度为±0.3 dB.基于线阵InGaAs光电二极管阵列和体相位光栅的光纤光栅解调系统不但尺寸小,功耗低,而且具有较高的解调速度.
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| 关 键 词： | 光纤光栅传感 InGaAs光电二极管阵列 解调系统 |
| 文章编号： | 1004-4213（2007）0D-1591-4 |
| 收稿时间： | 2006-06-13 |
| 修稿时间： | 2006-06-12 |
The Interrogation for Fiber Grating Sensors Based on the Linear InGaAs Photodiode Array |
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| LI Guo-yu,LIU Bo,GUO Tuan,ZHANG Jian,YUAN Shu-zhong,KAI Gui-yun,DONG Xiao-yi.The Interrogation for Fiber Grating Sensors Based on the Linear InGaAs Photodiode Array[J].Acta Photonica Sinica,2007,36(9):1591-1594. |
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| Authors: | LI Guo-yu LIU Bo GUO Tuan ZHANG Jian YUAN Shu-zhong KAI Gui-yun DONG Xiao-yi |
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| Institution: | Institute of Modern Optics,Nankai University,Tianjin 300071,China |
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| Abstract: | Based on the linear indium gallium arsenide (InGaAs) photodiode array and volume phase grating (VPG), a interrogative system of the fiber Bragg grating (FBG) sensors is designed by use of the wavelength division multiplexing (WDM) and spatial division multiplexing (SDM) technology. The performance tests show that the interrogation system can be used to interrogate the FBG sensor array with wavelength bandwidth 42 nm,SNR of 30 dB, wavelength shift accuracy of ±15 pm and power accuracy of about ±0.3 dB. The interrogative system has small size, and high interrogation speed, and it shows a good prospect. |
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| Keywords: | FBG sensing InGaAs photodiode array Interrogation system |
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