Open AccessTheoretical study of polarization mode dispersion emulators
Author(s) -
Li Zeng,
Caiyun Lou,
Enyao Zhang
Publication year - 2005
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.54.1241
Subject(s) - differential group delay , polarization mode dispersion , autocorrelation , polarization (electrochemistry) , dispersion (optics) , physics , electronic engineering , optics , mathematics , engineering , statistics , chemistry
The performances of the three polarization mode dispersion (PMD) emulators commonly used today are analyzed and compared among them through numerical simulation of their differential group delay (DGD) statistical characteristics and PMD vector autocorrelation function. The results demonstrate that to produce DGD that can match theoretical distribution, one DGD generator is adequate, while at least 15 sections are necessary in the emulator built by polarization maintaining fibers and rotatable connectors. And the autocorrelation function of the emulator based on polarization maintaining fibers depends on DGD of every section, while that of the emulator based on DGD generators is smooth and can be regarded as constant outside the central frequency range.