Study on wavelength detection system based on tunable filters with a novel multiplexing structure
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Corresponding author:
QIAO Xue-guang, xgqiao@xsyu.edu.cn
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Received Date:
2004-02-23
Accepted Date:
2004-04-26
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Abstract
A novel wavelength detection scheme is demonstrated for measuring the wavelength of fiber grating sensors.A new cascaded structure is used in the experimental system mu ltiplex fiber grating tunable filters.The peak wavelength of sensing signal in scanning mode is analyzed.The calibration technique is adopted by the reference wavelength,which eliminates the error induced by wavelength creepage when the filters are tuned.The results show that the detection range reaches 23nm,the wave length resolution is 3.1pm,and the strain resolution is 2.56με.
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References
|
[1]
|
KERSEY A D,DAVIS M A,PATRICK H J et al.Fiber grating sensors[J].J Lightwave Technol,1997,15(8):1442～1463. |
|
[2]
|
鲍吉龙,章献民,陈抗生 et al.光纤光栅传感器及其应用[J].激光技术,2000,24(3):174～179.
|
|
[3]
|
KERSEY A D,BERKOFF T A,MORIE W W.Multiplexed Bragg grating fiber-laser strain-sensor system with with a fiber Fabry-Parot wavelength filter[J].Opt Lett,1993,18(16):1370～1372. |
|
[4]
|
LISSAK B,ARIE A.Highly sensitive strain measurements by locking lasers to fiber Bragg gratings[J].Opt Lett,1998,23(24):1930～1932. |
|
[5]
|
HU Y,CHEN S,ZHANG L et al.Multiplexing Bragg grating using combined wavelength and spatial division technique with digital resolution enhancement[J]. Electron Lett,1997,33(23):1973～1975. |
|
[6]
|
KERSEY A D,BERKOFF T A,MORIE W W.High-resolution fiber-grating based strain sensor with interferometric wavelength-shift detection[J].Electron Lett,1992,28(3):236～238. |
|
[7]
|
谢芳,张书练,李岩 et al.光纤光栅反射波长移动研究[J]. 激光技术,2002,26(2):84～85.
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