光学相干域偏振测量技术及其在高精度光纤陀螺器件测量中的应用

杨军; 苑勇贵; 喻张俊; 李寒阳; 侯长波; 张浩亮; 苑立波

doi:doi:10.3788/AOS201838.0328007

光学学报, 2018, 38 (3): 0328007, 网络出版: 2018-03-20

光学相干域偏振测量技术及其在高精度光纤陀螺器件测量中的应用下载： 1784次特邀综述

Optical Coherence Domain Polarimetry Technology and Its Application in Measurement for Evaluating Components of High Precision Fiber-Optic Gyroscopes

杨军 ^1,2,*苑勇贵 ^1,3喻张俊 ^1,2李寒阳 ^1,2侯长波 ^1,3张浩亮 ^1,2苑立波 ^1,2,4

作者单位

¹ 哈尔滨工程大学纤维集成光学教育部重点实验室, 黑龙江哈尔滨 150001

² 哈尔滨工程大学理学院, 黑龙江哈尔滨 150001

³ 哈尔滨工程大学信息与通信工程学院, 黑龙江哈尔滨 150001

⁴ 桂林电子科技大学电子工程与自动化学院, 广西桂林 541004

图 & 表

图 1. OCDP技术的原理图。(a) OCDP系统简图;(b) OCDP典型测量结果

Fig. 1. Schematic of OCDP technology. (a) OCDP system; (b) typical result of OCDP system

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图 2. 光程追踪法示意图

Fig. 2. Schematic of optical path tracking method

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图 3. (a)具有功率衰减器的白光干涉仪;(b)信噪比衰减与参考臂光功率的关系

Fig. 3. (a) White light interferometer with power attenuator; (b) relationship between SNR degradation and light power of reference arm

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图 4. (a)平衡探测光路;(b)理论信噪比与耦合器1分光比的关系[34]

Fig. 4. (a) Balanced detection optical path; (b) relationship between theoretical SNR and splitting ratio of coupler 1[34]

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图 5. (a)偏振分束器标定方法原理图;(b)偏振分束器标定法与传统方法结果对比

Fig. 5. (a) Schematic of PBS-calibrated method; (b) comparison between results of PBS-calibrated method and traditional method

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图 6. (a)差分光学延迟线结构;(b)差分结构与单端结构的插入损耗波动对比

Fig. 6. (a) Structure of differential optical delay line; (b) comparison of insertion loss fluctuation between differential structure and single GRIN lens

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图 7. (a)光学延迟线拓展原理图;(b)延迟线拓展后的自校准信号

Fig. 7. (a) Schematic of range extention of optical delay line; (b) self-calibration signals after range extention of optical delay line

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图 8. (a)色散补偿前后的Y波导的典型测试结果;(b)色散测量示意图;(c)色散补偿流程图

Fig. 8. (a) Typical test results of Y waveguide before and after dispersion compensation; (b) schematic of dispersion measurement; (c) flow chart of dispersion compensation

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图 9. (a)闭环色散补偿示意图;待测保偏光纤(b) 945~960 m段与(c) 1950~1980 m段数据对应的判据函数曲面;待测保偏光纤(d) 945~960 m段与(e) 1950~1980 m段原始测量数据(蓝色线)与色散补偿后的数据(红色线)

Fig. 9. (a) Schematic of closed-loop dispersion compensation; criterion function surface corresponding to PMF in range of (b) 945-960 m and (c) 1950-1980 m; original data (blue curve) and its counterpart after dispersion compensation (red curve) corresponding to PMF in range of (d) 945-960 m and (e) 1950-1980 m

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图 10. (a)光纤环测试型与(b) Y波导测试型白光干涉测试系统

Fig. 10. Prototype of white-light interferometric measurement system for (a) fiber coil and (b) Y waveguide

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图 11. (a) Y波导测试方法示意图;(b)典型的Y波导测试结果

Fig. 11. (a) Schmetic of measurement method for Y waveguide; (b) typical test result of Y waveguide

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图 12. (a)超简结构和(b)改进的Y波导双臂同时测试原理图

Fig. 12. Schematics of (a) ultra-simple structure and (b) improved structure for simultaneous measurement of both arms of Y waveguide

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图 13. Y波导芯片基底反射模式的(a)示意图与(b)测试结果

Fig. 13. (a) Schematic and (b) measurement result of reflection modes from substrate of Y waveguide core

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图 14. 长度超过3 km的保偏光纤环的分布式偏振串扰。(a)含有色散的直接测试结果;(b)色散补偿后的测试结果(IPP:迭代相位包方法)

Fig. 14. Distributed polarization crosstalk of PMF coil with length greater than 3 km. (a) Measurement results with dispersion; (b) measurement results after dispersion compensation (IPP method: iterative phase packet method)

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图 15. 光纤环测试结果的傅里叶分析

Fig. 15. Fourier analysis of fiber coil measurement results

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表 1单一微扰点的一段保偏光纤中所有波列的传输时间和幅度

Table1. Transmission time and amplitude of all wave trains for a PMF with one perturbation point

Path	Transmission time	Normalized amplitude
1	t_f,_MX+t_f,_XN	cos θ₁cos θ₂ $\begin{matrix} \sqrt[]{1 - ρ_{X}^{2}} \end{matrix}$
2	t_f,_MX+t_s,_XN	ρ_Xcos θ₁sin θ₂
3	t_s,_MX+t_f,_XN	ρ_Xsin θ₁cos θ₂
4	t_s,_MX+t_s,_XN	sin θ₁sin θ₂ $\begin{matrix} \sqrt[]{1 - ρ_{X}^{2}} \end{matrix}$

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表 2单一微扰点的一段保偏光纤的干涉组合

Table2. Normalized time-delay difference and amplitude of interferogram for a PMF with one perturbation point

Wave strain	Wave strain	Time-delaydifference	Normalized crosstalkamplitude
1'	1″	0	cos²θ₁cos²θ₂
2'		2″	$\begin{matrix} ρ_{X}^{2} \end{matrix}$ cos²θ₁sin²θ₂
3'		3″	$\begin{matrix} ρ_{X}^{2} \end{matrix}$ sin²θ₁cos²θ₂
4'		4″	sin²θ₁sin²θ₂
1'	2″	τ_XN	ρ_Xcos²θ₁cosθ₂sinθ₂
3'		4″	ρ_Xsin²θ₁cosθ₂sinθ₂
1'	3″	τ_MX	ρ_Xcosθ₁sinθ₂cos²θ₂
2'		4″	ρ_Xcosθ₁sinθ₂sin²θ₂
1'	4″	τ_MX+τ_XN	cosθ₁sinθ₂cosθ₂sinθ₂
2'	3″	τ_MX-τ_XN	$\begin{matrix} ρ_{X}^{2} \end{matrix}$ cosθ₁sinθ₁cosθ₂sinθ₂

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表 3干涉峰的时延差与归一化串扰幅度

Table3. Time-delay difference and normalized crosstalk amplitude of interferogram

Time-delay difference	Normalized crosstalk amplitude
0	1
τ_XN	ρ_X

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表 4本课题组提出的白光干涉测试系统与国外同类仪器性能的对比

Table4. Performance of white-light interferometric measurement system proposed by our subject group comparing with foreign similar instruments

Country	Organization	Model	Technical configuration	Wavelength/nm	Sensitivity/dB	Dynamic range /dB	Spatial resolution /cm	Measurement length /m (Δn=5×10^-4)	Dispersion compensation function
France	Photonetics Company	WIN-P400	Bulk optic	850, 1310 or 1550	-80	80	10	1600	None
USA	General Photonics Company	PXA-1000	Fiber optic	1310 or 1550	-95	75	5	1300 or 2600	None
South Korea	FIBERPRO Company	ICD800	Bulk optic	1310 or 1550	-80	80	10	1000	None
China	Harbin Engineering University	OCDP-F-SLD	Fiber optic	1310 or 1550	-105	100	8(Full range)	5000	Yes

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杨军, 苑勇贵, 喻张俊, 李寒阳, 侯长波, 张浩亮, 苑立波. 光学相干域偏振测量技术及其在高精度光纤陀螺器件测量中的应用[J]. 光学学报, 2018, 38(3): 0328007. Yang Jun, Yuan Yonggui, Yu Zhangjun, Li Hanyang, Hou Changbo, Zhang Haoliang, Yuan Libo. Optical Coherence Domain Polarimetry Technology and Its Application in Measurement for Evaluating Components of High Precision Fiber-Optic Gyroscopes[J]. Acta Optica Sinica, 2018, 38(3): 0328007.