ABSTRACT
This chapter discusses various attempts towards electro-optic fibers for voltage measurement by line integration of the electric field. The first part is on thermally poled fibers and presents the poling process, the electro-optic effect in poled fibers, and attempts of voltage measurement with poled fibers. Other electro-optic fibers include crystalline BGO fibers grown by the m-pulling down method or obtained by the molten-core fabrication technique, crystallized glass fibers, and glass fibers with D-shaped cross-section coupled to electro-optic crystal slabs. The status of various techniques is reviewed and challenges are outlined.
