Open AccessSimultaneous observation of superluminal and slow light propagation in a nested fiber ring resonator
Author(s) -
Jinfang Wang,
Yundong Zhang,
Jing Zhang,
Yuanxue Cai,
Xuenan Zhang,
Ping Yuan
Publication year - 2010
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.18.013180
Subject(s) - superluminal motion , resonator , optics , physics , dispersion (optics) , coupling (piping) , transmission (telecommunications) , optical fiber , helical resonator , materials science , telecommunications , computer science , astronomy , metallurgy
We observe both superluminal and slow light propagation simultaneously in a nested fiber ring resonator. The two outputs of the resonator exhibit different absorption characteristics that produce opposite dispersion performance. The transmission spectra of two outputs are demonstrated experimentally for a variety of coupler settings. In particular, the group delays of the resonator for various values of the coupling coefficients are demonstrated theoretically and experimentally. We also discuss potential applications of the resonator.