Premium
Precise measurement of fiber dispersion based on phase‐modulated signal fading
Author(s) -
Zhang Shangjian,
Zou Xinhai,
Zhang Yali,
Zhang Xiaoxia,
Liu Yong
Publication year - 2014
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.28088
Subject(s) - fading , dispersion (optics) , signal (programming language) , modal dispersion , optics , phase (matter) , optical fiber , fiber , dispersion shifted fiber , spectrum analyzer , materials science , physics , telecommunications , computer science , fiber optic sensor , decoding methods , quantum mechanics , composite material , programming language
We propose a novel method for accurately measuring the chromatic dispersion based on the fading effect of the phase‐modulated signal. The fiber dispersion, acting as an optical phase filter, causes the periodical fading of the phase‐modulated signal, and the polynomial fitting of the fading curve enables the precise determination of the characteristic notch frequency and the fiber dispersion. Our method can be used for the chromatic dispersion measurement at different operating wavelengths and dispersive fibers by using a vector network analyzer. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:427–430, 2014