%0 Journal Article
%T Advances and new applications using the acousto-optic effect in optical fibers
%A Alexandre A. P. Pohl
%A Roberson A. Oliveira
%A Ricardo E. Da Silva
%A Carlos A. F. Marques
%A Paulo de Tarso Neves Jr.
%A Kevin Cook
%A John Canning
%A Rog¨Śrio N. Nogueira
%J Photonic Sensors
%@ 2190-7439
%D 2013
%I 
%R 10.1007/s13320-013-0100-0
%X This work presents a short review of the current research on the acousto-optic mechanism applied to optical fibers. The role of the piezoelectric element and the acousto-optic modulator in the excitation of flexural and longitudinal acoustic modes in the frequency range up to 1.2 MHz is highlighted. A combination of the finite elements and the transfer matrix methods is used to simulate the interaction of the waves with Bragg and long period gratings. Results show a very good agreement with experimental data. Recent applications such as the writing of gratings under the acoustic excitation and a novel viscometer sensor based on the acousto-optic mechanism are discussed.
%K Acousto-optics
%K fiber gratings
%K optical fibers
%K optical sensors
%U http://link.springer.com/article/10.1007/s13320-013-0100-0