Abstract
In integrated optics, most of the developmental efforts have centered on the use of LiNbO3, and LiTaO3, crystals primarily because of their ready commercial availability and well established techniques for fabricating optical waveguides. Significant interest however, lies in producing optical waveguide devices in materials with a higher electro-optic coefficient which could be used for making compact low-voltage electro-optic modulators and switches. A suitable choice for this is strontium-barium niobate crystal (such as SBN:75), The crystal exhibits a very large electrooptic coefficient, which is more than one order higher than that of LiNbO3,. In this paper we discuss how to fabricate an electro-optic modulator in SBN using a permanent two-dimensional single-mode waveguide impressed into a crystalline lattice by a real-time photorefractive soliton.
© 2002 Optical Society of America
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