Open AccessTunable optical delays based on Brillouin dynamic grating in optical fibers
Author(s) -
Kwang Yong Song,
Kwanil Lee,
Sang Bae Lee
Publication year - 2009
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.17.010344
Subject(s) - brillouin scattering , optics , materials science , brillouin zone , optical fiber , grating , fiber bragg grating , physics
We demonstrate a novel kind of tunable optical delays based on dynamic grating generated by Brillouin scattering in an optical fiber. An axial strain gradient is applied to a 15 m section of a polarizationmaintaining fiber, and the Brillouin reflection grating is generated position-selectively by controlling the optical frequencies of Brillouin pump waves. Tunable time delays of up to 132 ns are achieved with an 82 ns Gaussian pulse.