Open AccessAcousto-optic resonant coupling of three spatial modes in an optical fiber
Author(s) -
Hee Su Park,
Kwang Yong Song
Publication year - 2014
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.22.001990
Subject(s) - optics , multiplexing , optical fiber , multi mode optical fiber , physics , bandwidth (computing) , wavelength division multiplexing , coupling (piping) , optical communication , telecommunications , computer science , materials science , wavelength , metallurgy
A fiber-optic analogue to an externally driven three-level quantum state is demonstrated by acousto-optic coupling of the spatial modes in a few-mode fiber. Under the condition analogous to electromagnetically induced transparency, a narrow-bandwidth transmission within an absorption band for the fundamental mode is demonstrated. The presented structure is an efficient converter between the fundamental mode and the higher-order modes that cannot be easily addressed by previous techniques, therefore can play a significant role in the next-generation space-division multiplexing communications as an arbitrarily mode-selectable router.