Advances and new applications using the acousto-optic effect in optical fibers
- Publication Type:
- Journal Article
- Photonic Sensors, 2013, 3 (1), pp. 1 - 25
- Issue Date:
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. © 2013 The Author(s).
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