Open AccessCrosstalk in multicore fibers with randomness: gradual drift vs short-length variations
Author(s) -
John M. Fini,
Bin Zhu,
T. F. Taunay,
M. F. Yan,
Kazi S. Abedin
Publication year - 2012
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.20.000949
Subject(s) - randomness , crosstalk , optics , perturbation (astronomy) , physics , multiplicative function , spinning , materials science , mathematics , statistics , quantum mechanics , mathematical analysis , composite material
Random perturbations play an important role in the crosstalk of multicore fibers, and can be captured by statistical coupled-mode calculations. In this approach, phase matching contributes a multiplicative factor to the average crosstalk, depending on the perturbation statistics and any intentional heterogeneity of neighboring cores. The impact of perturbations is shown to be qualitatively different depending on whether they are gradually varying, or have short-length (centimeter-scale) variations. This insight implies a novel crosstalk suppression strategy: fast modulation of a bend perturbation by spinning the fiber can disrupt the bend-induced phase matching.