Advances and New Applications Using the Acousto-Optic Effect in Optical Fibers  

作　　者：Alexandre A. P. POHL Roberson A. OLIVEIRA Ricardo E. DA SILVA Carlos A. F. MARQUES Paulo de Tarso NEVES JR. Kevin COOK John CANNING Rogério N. NOGUEIRA3 

机构地区：[1]Advanced Telecommunications Laboratory, Federal University of Technology - Paraná, Curitiba, Brazil [2]Volvo GTT, Advanced Technology & Research, Curitiba, Brazil [3]Instituto de Telecomunicagōes, P6lo de Aveiro, 3810-193, Aveiro, Portugal [4]Interdisciplinary Photonics Labs, School of Chemistry, University of Sydney, New South Wales 2006, Australia

出　　处：《Photonic Sensors》2013年第1期1-25,共25页光子传感器（英文版）

摘　　要：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.

关 键 词：ACOUSTO-OPTICS fiber gratings optical fibers optical sensors 

分 类 号：TN253[电子电信—物理电子学] TN929.53