啁啾效应对Bragg波长匹配 解调精度的影响与消除

庄其仁; 龚冬梅; 曾永西

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啁啾效应对Bragg波长匹配解调精度的影响与消除

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- 啁啾效应对Bragg波长匹配解调精度的影响与消除
- Influence of chirp effects on FBG wavelength- matched demodulation precision and it's elimination
- 光学精密工程 2005年13卷第3期页码：364-370
- 作者机构：
  
  华侨大学信息科学与工程学院,福建泉州,362021
- 作者简介：
- 基金信息：
- DOI：
  中图分类号： TN253
- 收稿日期：2004-11-20，
  
  修回日期：2005-02-02，
  
  网络出版日期：2005-06-30，
  
  纸质出版日期：2005-06-30
- 稿件说明：
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庄其仁, 龚冬梅, 曾永西. 啁啾效应对Bragg波长匹配解调精度的影响与消除[J]. 光学精密工程, 2005,13(3):364-370.

ZHUANG Qi-ren, GONG Dong-mei, ZENG Yong-xi. Influence of chirp effects on FBG wavelength- matched demodulation precision and it's elimination[J]. Optics and precision engineering, 2005, 13(3): 364-370.
庄其仁, 龚冬梅, 曾永西. 啁啾效应对Bragg波长匹配解调精度的影响与消除[J]. 光学精密工程, 2005,13(3):364-370. DOI：

ZHUANG Qi-ren, GONG Dong-mei, ZENG Yong-xi. Influence of chirp effects on FBG wavelength- matched demodulation precision and it's elimination[J]. Optics and precision engineering, 2005, 13(3): 364-370. DOI：

摘要

介绍了光纤光栅Bragg波长的匹配解调原理

分析了传感光纤光栅和匹配光纤光栅的反射谱相关函数

说明相关函数与光电探测器输出信号具有线性关系。指出基于最大相关原理(光电探测器输出信号极值判断法)的匹配解调只适用于两个光纤光栅具有相同的反射谱型。采用光电探测器输出信号峰值判读时

传感光纤光栅的啁啾效应会引起Bragg波长的解调误差。理论分析和实验研究表明

对光电探测器输出信号进行去卷积运算处理可以消除传感光纤光栅啁啾效应对Bragg波长解调精度的影响。

Abstract

The principle of wavelength-matched demodulation of fiber Bragg grating(FBG) is introduced. The correlation functions of reflective spectra of sensor fiber grating and wavelength-matched fiber grating are analyzed. The correlation functions are linearity to photoelectric detector output signals. The wavelength-matched demodulation based on maximum correlation

extremum judgment of photodetector output signal

are only available for alike reflective spectra. When the peak value judgment of photodetector output signal is adopted

chirp effects in the FBG sensor lead to demodulation error of Bragg wavelength. Theoretical analysis and experimental investigation show that the deconvolution of photodetector output signal can eliminate Bragg wavelength demodulation error influenced by chirp effects in the FBG sensor.

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references

. KERSEY A D. Multiplexed fiber Bragg grating strain-sensor system with a fiber Fabry-Perot wavelength filter[J]. Opt. Lett.,1993, 18(16):1370.

. NING Y N, MELDRUM A, SHI W J, et al. Bragg grating sensing instrument using a tunable Fabry-Perot filter to detect wavelength variations[J]. Meas.Sci.and Technol.,1998,9(6):599-606.

. LOBO A B, FERREIRA L A, SANTOS J L,et al. Analysis of the reflective-matched fiber Bragg grating sensing interrogation scheme[J]. Appl. Opt., 1997,36(4):934-939.

. 唐炜. 史仪凯. Bragg光纤传感技术应用研究[J]. 光学精密工程, 2002,10(1):79-83. TANG W,SHI Y K. Optical fiber Bragg grating sensing technology[J]. Optics and Precision Engineering, 2002,10(1):79-83.(in Chinese)

. 刘志国,张艺兵,开桂云,等. 新型光纤光栅线性调谐方法 . 光学学报,1998,18(12):1731-1734. LIU ZH G, ZHANG Y B, KAI G Y, et al. A new method for fiber grating linear tuning[J]. Acta Optica Sinica, 1998,18(12):1731-1734.(in Chinese)

. 余有龙,刘志国,董孝义,等. 基于悬臂梁的光纤光栅线性调谐[J]. 光学学报,1999,19(5): 621-625. YU Y L, LIU ZH G,DONG X Y,et al. Linear tuning of fiber Bragg grating based on a cantilever[J]. Acta Optica Sinica, 1999,19(5): 621-625.(in Chinese)

. 刘云启,刘志国, 郭转运,等. 利用调谐滤波技术的光纤光栅复用传感器[J]. 光学学报,2000,20(8):1084-1088. LIU Y Q, LIU ZH G, GUO ZH Y, et al.Multiplexed fiber Bragg grating sensor using tunable FBG filter technique[J]. Acta Optica Sinica, 2000,20(8):1084-1088.(in Chinese)

. LOBO A B, FERREIRA L A, SANTOS J L,et al. Analysis of the reflective matched fiber Bragg rating sensing interrogation scheme[J]. Appl.Opt.,1997,36(4):934-939.

. 刘云启,刘志国,郭转运,等. 光纤光栅传感器的调谐滤波检测技术[J]. 光学学报,2001,21(1):88-92. LIU Y Q, LIU ZH G, GUO ZH Y, et al. Theoretical and experimental researches on tunable filtering detection technique of fiber grating sensor[J]. Acta Optica Sinica, 2001,21(1):88-92.(in Chinese)

. 胡广书. 数字信号处理:理论、算法与实现[M]. 北京:清华大学出版社,1997:22-27. HU G SH. Digital signal processing: theory and algorithm and realization [M].Beijing:Publishing House of Tsinghua University ,1997:22-27.(in Chinese)

. 汪胡桢.现代工程数学手册(第Ⅳ卷):概率论-随机变量的数字特征[M]. 武汉:华中工学院出版社,1985: 36-59. WANG H ZH,et al.Advanced engineering math-manual:numeric characteristic of probability -random variable [M].Wuhan:Publishing House of Huazhong Technical College ,1985: 36-59.(in Chinese)

. 温志渝,费龙, 钟先信,等. 集成硅微悬臂梁融合式传感器制造技术[J]. 光学精密工程. 1995,3(2):47-50. WEN ZH Y, FEI L,ZHONG X X,et al. Productive technique for integrated micro-machining silicon cantilever hybrid sensor[J]. Optics and Precision Engineering, 1995,3(2):47-50.(in Chinese)

. 关柏鸥,刘志国,开桂云,等. 基于悬臂梁结构的光纤光栅位移传感研究[J]. 光子学报,1999, 28(11):983-984. GUAN B O, LIU ZH G, KAI G Y,et al. Fiber Bragg grating displacement sensor based on a cantilever beam[J]. Acta Photonica Sinica, 1999, 28(11):983-984.(in Chinese)

. 丁义元,杨建宇,张卫华,等. 改进实孔径雷达角分辨力的广义逆滤波方法[J]. 电子学报,1993,21(9):15-19. DING Y Y, YANG J Y, ZHANG W H, et al. Improvement of angular resolution of real aperture radar via generalized inverse filtering[J].Acta Electronic Sinica, 1993,21(9):15-19.(in Chinese)

. 朱力,王盛利,单荣光. 去卷积实现雷达方位超分辨方法的实验研究[J]. 现代雷达,1998,20(3): 57-60. ZHU L,WANG SH L,SHAN R G. An experimental study on method of radar azimuth super-resolution using deconvolution[J]. Modern Radar,1998,20(3): 57-60.(in Chinese)

. 倪晋麟,储晓彬,林幼权. 基于去卷积距离超分辨方法的机理及限制条件[J]. 系统工程与电子技术,2000,22(3): 62-64. NI J L,CHU X B,LIN Y Q. The principle and limitation of the range super-resolution algorithms based on deconvolution[J]. Systems Engineering and Electronics, 2000,22(3): 62-64.(in Chinese)

. 徐中民,禹秉熙. 对PC2000-PC/104型光谱仪的波长定标 . 光学精密工程, 2004,12(1):11-14. XU ZH M, YU B X. Wavelength calibration for PC2000-PC/104 spectrometer . Optics and Precision Engineering, 2004,12(1):11-14.(in Chinese)

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