中国激光, 2018, 45 (1): 0106002, 网络出版: 2018-01-24 复制并引用该论文  本文已被引 4 次  被引通知

图 & 表

图 1. 固定分析仪法测量PMD实验系统示意图

Fig. 1. Schematic of the experimental system for the measurement of the PMD by fixed analyzer method

下载图片 查看原文

图 2. PMD测量信号R(λ)的示意图

Fig. 2. Schematic of PMD measurement signal R(λ)

下载图片 查看原文

图 3. PMD测量信号进行EMD自适应分解及滤波的流程图

Fig. 3. Flow chart of PMD measurement signal for EMD adaptive decomposition and filtering

下载图片 查看原文

图 4. 两种去噪声方法结果比较。(a)维纳滤波法;(b) EMD自适应滤波法

Fig. 4. Comparison of two methods for noise removal. (a) Wiener filtering method; (b) EMD adaptive filtering method

下载图片 查看原文

图 5. 4种光纤测量结果曲线。(a) 6.3 km DCF;(b) 38.8 km DSF;(c) 50.4 km SMF;(d) 50 m PMF

Fig. 5. Curves of four fiber measurement results. (a) 6.3 km DCF; (b) 38.8 km DSF; (c) 50.4 km SMF; (d) 50 m PMF

下载图片 查看原文

表 1不同偏振态下3种测量结果的标准差

Table1. Standard deviations of the three measured results under different polarization states

Fiber type DCF DSF SMF PMF Fiber length /km 6.30 38.80 50.40 0.05 Standard deviation of the results of reference value /ps 0.34 0.12 0.02 0.02 Standard deviation of the results of EMD filtering /ps 0.37 0.19 0.03 0.22 Standard deviation of the results of Winner filtering /ps 0.43 0.38 0.04 0.76

查看原文

表 22种滤波方法测量结果与商用仪器测量结果(参考值)的比较

Table2. Comparison of the results of the two filtering methods with the measured results of thecommercial instrument (reference value)

Fiber type DCF DSF SMF PMF Fiber length /km 6.30 38.80 50.40 0.05 Reference value /ps 9.90 5.39 0.63 57.46 Average of the results of EMD filtering /ps 9.880 5.430 0.633 57.500 Average of the results of Wiener filtering /ps 9.860 5.300 0.668 57.800 Relative error of measurement result between EMD filtering and reference value /% 0.20 0.74 0.48 0.07 Relative error of measurement result between Wiener filtering and reference value /% 0.40 1.67 6.03 0.59

查看原文

潘潘, 席丽霞, 张晓光, 唐先锋, 万冬. 基于经验模态分解的偏振模色散测量实验研究[J]. 中国激光, 2018, 45(1): 0106002. Pan Pan, Xi Lixia, Zhang Xiaoguang, Tang Xianfeng, Wan Dong. Experimental Research on Polarization Mode Dispersion Measurement Based on Empirical Mode Decomposition[J]. Chinese Journal of Lasers, 2018, 45(1): 0106002.