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Proceedings Paper

Applications of combined acousto-optic and electro-optic effects in LiNbO3 modulator
Author(s): Zhao-guang Pang; Gui-qiao You
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Paper Abstract

In this paper a novel acousto-electro-optic (AEO) modulator that combined acousto-optic effects and electro-optic effects is presented. Based on the design of Acousto-optic modulator (AOD), electro-optic effects is also utilized by sticking Direct current (DC) electrodes to AOD surface, which direction of the electric field is perpendicular to the acoustic plane and the incident light. The operating mode of the AEO device is systimatically studied for the first time and the optimum operating mode is determined; we designed and made a modulator of centre frequency 60 MHz using LiNbO3 crystal, which can realize acousto-optic effects and electro-optic effects at the same time. The experiments results show that this novel modulator can not only realize light modulation, but also has a wider 3db bandwidth, which is agreed with the theoretical analysis. This novel modulator has wider applications in optic communication and optic signal processing.

Paper Details

Date Published: 28 January 2009
PDF: 7 pages
Proc. SPIE 7156, 2008 International Conference on Optical Instruments and Technology: Optical Systems and Optoelectronic Instruments, 71563F (28 January 2009); doi: 10.1117/12.812114
Show Author Affiliations
Zhao-guang Pang, Hebei Normal Univ. (China)
Gui-qiao You, Hebei Youth Administrative Cadres College (China)


Published in SPIE Proceedings Vol. 7156:
2008 International Conference on Optical Instruments and Technology: Optical Systems and Optoelectronic Instruments
Yunlong Sheng; Yongtian Wang; Lijiang Zeng, Editor(s)

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