Open AccessExperimental study of Brillouin scattering in fluorine-doped single-mode optical fibers
Author(s) -
Weiwen Zou,
Zuyuan He,
Kazuo Hotate
Publication year - 2008
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.16.018804
Subject(s) - brillouin scattering , materials science , optics , optical fiber , cladding (metalworking) , doping , wavelength , brillouin zone , single mode optical fiber , resonance (particle physics) , dopant , light scattering , brillouin spectroscopy , scattering , optoelectronics , atomic physics , composite material , physics
We experimentally investigate Brillouin scattering properties in fluorine-doped single-mode optical fibers. The effective acoustic velocities determined from the measured dependences of acoustic resonance frequencies on optical wavelength are approximately equal to the individual acoustic velocities in the core and/or cladding regions. Brillouin gain coefficients are experimentally characterized and compared with that in a standard GeO(2)-doped single-mode fiber. The result indicates that the acousto-optic coupling efficiencies in all fibers are almost 100%, which means that Brillouin threshold value can not be simply increased by fluorine doping. Moreover, it is found that the dependences of acoustic resonance frequencies on applied strain or temperature change are quantitatively enhanced by fluorine dopants, which is in opposite trend when compared with germanium ones.