Abstract
The fabrication of photorefractive waveguides for use in holographic processors, integrated-optic applications, and optical memory devices is a particularly desirable goal To date, small diameter (<100 μm) crystal fibers of materials such as SBN have successfully been grown, but their bulk and surface optical quality can be poor, and clad fibers are not readily available. Planar guides of Ti indiffused photorefractive LiNbO3 are more easily fabricated, but the materials of most interest to the photorefractive community, such as BaTiO3 SBN or BSO, have not been produced as low-loss waveguide structures, apart from a few reports on highly multimode thin cleaved crystal wafers.1
© 1992 Optical Society of America
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