Photonic Sensors, Volume. 3, Issue 1, 1(2013)
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. 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.
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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. NOGUEIRA. Advances and New Applications Using the Acousto-Optic Effect in Optical Fibers[J]. Photonic Sensors, 2013, 3(1): 1
Category: Review
Received: Oct. 22, 2012
Accepted: Nov. 12, 2012
Published Online: Apr. 16, 2013
The Author Email: P. POHL Alexandre A. (pohl@utfpr.edu.br)