Advances and new applications using the acousto-optic effect in optical fibers

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....

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Bibliographic Details
Published in:Photonic sensors (Berlin) 2013, Vol.3 (1), p.1-25
Main Authors: Pohl, Alexandre A. P., Oliveira, Roberson A., Da Silva, Ricardo E., Marques, Carlos A. F., Neves, Paulo de Tarso, Cook, Kevin, Canning, John, Nogueira, Rogério N.
Format: Article
Language:English
Subjects:
Lasers
Measurement Science and Instrumentation
Microwaves
Optical Devices
Optics
Photonics
Physics
Physics and Astronomy
Review
RF and Optical Engineering
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Summary: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.
ISSN:1674-9251
2190-7439
DOI:10.1007/s13320-013-0100-0