Open AccessChromatic dispersion dependence of GAWBS phase noise compensation with pilot tone
Author(s) -
Kôzô Satô,
Takashi Kikuchi,
Masato Yoshida,
Keisuke Kasai,
Toshihiko Hirooka
Publication year - 2021
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.418891
Subject(s) - optics , dispersion (optics) , phase noise , brillouin scattering , group delay and phase delay , noise (video) , materials science , polarization mode dispersion , phase (matter) , compensation (psychology) , physics , signal (programming language) , optical fiber , telecommunications , computer science , quantum mechanics , artificial intelligence , psychoanalysis , image (mathematics) , programming language , psychology , bandwidth (computing)
We describe experimental and numerical results regarding the influence of chromatic dispersion in optical fibers on guided acoustic-wave Brillouin scattering (GAWBS) phase noise compensation with a pilot tone (PT). We compared the compensation performance for GAWBS phase noise generated in an ultra-large-area fiber (ULAF) where DULAF = 21 ps/nm/km with that in a dispersion-shifted fiber (DSF) where DDSF = -1.3 ps/nm/km and found that the performance depends strongly on chromatic dispersion. The numerical analysis shows that the group delay between the signal and PT caused by chromatic dispersion reduces the GAWBS noise correlation between them, which degrades the compensation performance for GAWBS phase noise. It is clarified that a condition for effective GAWBS compensation is that the group delay between the signal and PT should be less than half the period of the GAWBS phase noise component.