光学学报, 2008, 28 (5): 846, 网络出版: 2008-05-20   

双环形腔并联瑞利后向散射式光纤陀螺

Two-Ring-Resonantor in Parallel Combined Rayleigh Backscattering Fiber Optic Gyroscope
作者单位
哈尔滨工程大学理学院, 黑龙江 哈尔滨 150001
摘要
基于单环后向瑞利散射式光纤陀螺原理,提出了一种双环形腔并联的瑞利后向散射式光纤陀螺仪新结构。利用两个2×2单模光纤耦合器,建立了并联双环形腔瑞利后向散射式光纤陀螺仪的理论模型,给出了信号表达式。利用优化的环长和分光比两结构参量,分析了瑞利后向散射式光纤陀螺仪信号的输出特性。选择双环的长度分别为1500 m和1078 m,2×2光纤耦合器的耦合系数分别为95.23%和94.88%构建了测试系统,用光时域反射计(OTDR)对不同转速所探测到的后向瑞利散射信号进行测量,验证了这种新结构的可行性。同单环后向瑞利散射式光纤陀螺仪相比,双环的采用,增加了测试的有效数据,使其更有利于识别,提高了测量转速的精度。
Abstract
A novel two-ring-resonantor in parallel combined Rayleigh backscattering fiber optic gyroscope (RBFOG) is proposed based on the single ring scheme. The theoretical model of the two-ring combined RBFOG is established by using two 2×2 fiber star coupler. The expression of detection signal intensity is deduced. The output signal characteristics are analyzed by optimizing the structure parameters of the two-ring cavity lengths and coupling ratios. The experimental system is constructed with cavity lengths of 1500 m and 1078 m at coupling ratios of 95.23% and 94.88% respectively. Rayleigh backscattering signals are measured at different rotation rate by OTDR. Feasibility of the novel structure is validated. Compared with single-ring RBFOG, the two-ring system increases measuring effective data, and is propitious to recognize, and the measuring precision is improved.
参考文献

[1] . . Effect of polarization interference on fiber optic gyro performance[J] Acta Optica Sinica, 2006, 26(8): 1140-1144 米剑,张春熹,李铮 等. 偏光干涉对光纤陀螺性能的影响[J]. 光学学报, 2006, 26(8): 1140-1144.

[2] Zhang Xulin, Ma Huilian, Ding Chun et al.. Optical Kerr effect in phase modulation spectroscopy resonator fiber optic gyro[J]. Chin. J. Lasers, 2006, 33(6): 815~818
张旭琳,马慧莲,丁纯 等. 谐振式光纤陀螺调相谱检测技术中的光克尔效应[J]. 中国激光, 2006, 33(6): 815~818

[3] Herve C. Lefevre. The Fiber-Optic Gyroscope[M]. Beijing: National Defence Industry Press, 2004. 170~172
Herve C. Lefevre. 光纤陀螺仪[M]. 北京: 国防工业出版社, 2004. 170~172

[4] . . Key technologies of IFOG[J]. Modern Defence Technology, 2004, 32(1): 43-48.

[5] . Kung, J. Budin, L. Thevenaz et al.. Rayleigh fiber optic gyroscope[J]. IEEE Photon. Technol. Lett., 1997, 9(7): 973-975.

[6] Libo Yuan, Zhihai Liu, Jun Yang. Rayleigh backscattering fiber optic rotation sensor based on combined two-ring-resonator[J]. Sensors and Actuators A, 2007, (136): 216~220

[7] . Kung, J. Budin, L. Thevenaz et al.. Optical fiber ringresonator characterization by optical time-domain reflectometry[J]. Opt. Lett., 1997, 22(2): 90-92.

刘艳磊, 苑立波, 周爱. 双环形腔并联瑞利后向散射式光纤陀螺[J]. 光学学报, 2008, 28(5): 846. Liu Yanlei, Yuan Libo, Zhou Ai. Two-Ring-Resonantor in Parallel Combined Rayleigh Backscattering Fiber Optic Gyroscope[J]. Acta Optica Sinica, 2008, 28(5): 846.

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