Open AccessSimultaneous Measurement of Chromatic and Modal Dispersion in FMFs Using Microwave Photonic Techniques
Author(s) -
Zhiqun Yang,
Ruilong Mi,
Ningbo Zhao,
Lin Zhang,
Guifang Li
Publication year - 2017
Publication title -
ieee photonics journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.725
H-Index - 73
eISSN - 1943-0655
pISSN - 1943-0647
DOI - 10.1109/jphot.2017.2695005
Subject(s) - engineered materials, dielectrics and plasmas , photonics and electrooptics
A microwave-photonic technique for measuring dispersion characteristics of few-mode fibers is proposed and experimentally demonstrated. We extract these dispersion parameters by sweeping the frequency of microwave signals modulated on an optical carrier. For the first time, simultaneous high-precision measurement of chromatic dispersion and modal dispersion are made possible. Experimental results obtained on a two-mode group fiber match well with simulation results, as well as those obtained using time-domain methods. The proposed scheme is scalable to measuring fibers with a large number of modes.