光通信技术2026，Vol.50Issue(3)：89-94,6.DOI:10.13921/j.cnki.issn1002-5561.2026.03.015
基于改进包络提取算法的单模光纤PMD干涉测量研究
Improved envelope extraction algorithm for interferometric PMD measurement in single-mode fibers
王昊 1涂建坤 2依晓春 3郭汉明1
作者信息
- 1. 上海理工大学 光电信息与计算机工程学院,上海 200093
- 2. 上海电缆研究所有限公司,上海 200093
- 3. 上海赛克力光电技术有限责任公司,上海 200093
- 折叠
摘要
Abstract
To enhance the repeatability and accuracy of polarization mode dispersion(PMD)measurements in optical fiber links,a single-mode fiber PMD interferometric measurement system incorporating an improved envelope extraction algorithm is designed.An enhanced envelope extraction algorithm,combining Hilbert transform with moving average filtering,is intro-duced in the signal processing stage to effectively suppress the impact of signal fluctuations on the calculation of differential group delay(DGD).Experimental results demonstrate that the improved algorithm reduces the standard deviation of the system's measurement results to 0.003 41 ps.Comparative tests with the advanced foreign instrument EXFO-FTB-5500 show highly consistent measurement results between the two systems across different types of optical fibers.关键词
单模光纤/偏振模色散/包络提取/干涉法/群时延差Key words
single-mode fiber/polarization mode dispersion/envelope extraction/interferometry/group delay difference分类
信息技术与安全科学引用本文复制引用
王昊,涂建坤,依晓春,郭汉明..基于改进包络提取算法的单模光纤PMD干涉测量研究[J].光通信技术,2026,50(3):89-94,6.
