Characterizations of a 2 x 2 optical switch using an acousto-optic cell with phased array transducers

Yves Mevel; Veronique Quintard; Andre Perennou; Hongwu Li; Jean Le Bihan

doi:10.1117/12.468287

11 March 2003 Characterization of a 2×2 optical switch using an acousto-optic cell with phased array transducers

Yves Mevel, Veronique Quintard, Andre Perennou, Hongwu Li, Jean Le Bihan

Proceedings Volume 4946, Transducing Materials and Devices; (2003) https://doi.org/10.1117/12.468287
Event: Photonics Fabrication Europe, 2002, Bruges, Belgium

Abstract

With the intention of developing devices for optical communications, we have worked upon acousto-optic deflection in the Bragg regime, at 1.55 µm wavelength. Recently, still using the acousto-optic interaction, we have taken an interest in the 2×2 switching function. In this paper, we present an acousto-optic switch architecture based on phased array transducers. This switch is made of a single TeO₂ crystal, in which we superimpose two diffraction gratings created by two RF signals. First, we talk about the acousto-optic interaction, and make a general presentation of the switch's architecture. Then, we present some previous characterisations of the structure, in terms of diffraction efficiency according to the number of piezoelectric transducers electrically supplied and the RF power applied. We also study the diffracted optical beam profiles.

Citation Download Citation

Yves Mevel, Veronique Quintard, Andre Perennou, Hongwu Li, and Jean Le Bihan "Characterization of a 2×2 optical switch using an acousto-optic cell with phased array transducers", Proc. SPIE 4946, Transducing Materials and Devices, (11 March 2003); https://doi.org/10.1117/12.468287

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KEYWORDS

Transducers

Diffraction

Acousto-optics

Switches

Acoustics

Phased array optics

Diffraction gratings

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