Time-division Three-wavelength Demodulation Technique for Fiber Optic Fabry-Perot Vibration Sensor

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Integrated Circuits and Embedded Systems ›› 2023, Vol. 23 ›› Issue (5) : 65-69.

NEW PRODUCT & TECH

Time-division Three-wavelength Demodulation Technique for Fiber Optic Fabry-Perot Vibration Sensor

Zhang Qi, Ren Qianyu, Zhao Aihao, Gao Kaibo, Jia Pinggang

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Abstract

A time-division three-wavelength demodulation scheme based on tunable laser is studied for dynamic demodulation of non-intrinsic fiber Fabry-Perot interference (EFPI) sensor.Based on the advantages of fast wavelength switching and wide tuning range,the tunable laser is replaced by the traditional three lasers by the way of wavelength switching,which simplifies the tuning system.The experiment results show that the maximum nonlinear error of the demodulation scheme is 2.3%.The demodulation speed of the demodulation system is 78 kHz.The demodulation technique has the advantages of simple and compact system,low cost and high speed,and has certain application value in the field of dynamic signal measurement.

Key words

three wavelength phase demodulation / tunable laser S7500 / EFPI vibration sensor

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Zhang Qi, Ren Qianyu, Zhao Aihao, Gao Kaibo, Jia Pinggang. Time-division Three-wavelength Demodulation Technique for Fiber Optic Fabry-Perot Vibration Sensor[J]. Integrated Circuits and Embedded Systems. 2023, 23(5): 65-69

References

[1] 叶全意,高英杰,田锦,等.基于3dB光纤耦合器构成的Mach-Zehnder光纤干涉仪稳定控制系统[J].红外与激光工程,2017,46(10):293-297.
[2] 王端骧.单模光纤技术的发展[J].电子技术,1985(3):4-8.
[3] 荆振国,于清旭.用于高温油井测量的光纤温度和压力传感器系统[J].传感技术学报,2006,19(6):2450-2452.
[4] Zhu Y,Kristie L C,Gary R P,et al.High-Temperature Fiber-Tip Pressure Sensor[J].Journal of Lightwave Technology,2006,24(2).
[5] Wu J,Zhang X,Chen L,et al.Research on measurement technology of ship leakage current by all-fiber optic current sensor[J].IEEE Access,2021(9):160268-160276.
[6] Khan F,Donder A,Galvan S,et al.Pose measurement of flexible medical instruments using fiber bragg gratings in multi-core fiber[J].IEEE Sensors Journal,2020(99).
[7] Zheng J,Li W,Liu X.Fast and simple interrogation of extrinsic Fabry-Perot interferometer sensor based on dual-wavelength intensity ratio[J].Optics Communications,2019(439):176-180.
[8] 郭晶晶,黎敏,童斌.基于直接相位解调的双光纤法布里珀罗位移传感器[J].中国激光,2012,39(8):130-134.
[9] Schmidt M,Fvrstenau N.Fiber-optic extrinsic Fabry-Perot interferometer sensors with three-wavelength digital phase demodulation[J].Optics letters,1999,24(9):599-601.
[10] Liu Q,Jing Z,Li A,et al.Common-path dual-wavelength quadrature phase demodulation of EFPI sensors using a broadly tunable MG-Y laser[J].Optics express,2019,27(20).
[11] 赵文涛,宋凝芳,宋镜明,等.三波长数字相位解调法解调误差及影响因素[J].北京航空航天大学学报,2017,43(8):1654-1661.
[12] Wang F,Xie J,Hu Z,et al.Interrogation of extrinsic Fabry-Perot sensors using path-matched differential interferometry and phase generated carrier technique[J].Journal of Lightwave Technology,2015,33(12):2392-2397.
[13] Jiang J,Zhao Z,Wang S,et al.Optical fiber Fabry-Perot interferometer based on phase-shifting technique and birefringence crystals[J].Optics Express,2018,26(17):21606-21614.
[14] 邵洪峰,陈嬴,宋镜明,等.基于三波长强度解调的光纤EFPI解调系统[J].仪表技术与传感器,2016(3):61-64.
[15] Liu Q,Jing Z,Liu Y,et al.Quadrature phase-stabilized three-wavelength interrogation of a fiber-optic Fabry-Perot acoustic sensor[J].Optics letters,2019,44(22).
[16] 李佳明,孔市委,任乾钰,等.基于可调谐激光器的光纤法珀振动传感器解调技术[J].测控技术,2022,41(3):12-17,61.
[17] 郑胜亨,杨远洪.调制光栅Y分支可调谐激光器高精准波长调谐特性[J].中国激光,2019,46(2):9-16
[18] 林屹.可调谐半导体激光器波长检测与控制的研究[D].武汉:华中科技大学,2015.
[19] 任乾钰,贾平岗,钱江,等.多腔型光纤法布里-珀罗传感器三波长动态解调技术[J].光子学报,2022,51(9):196-205.
[20] 荆振国.白光非本征法布里—珀罗干涉光纤传感器及其应用研究[D].大连:大连理工大学,2006.