Abstract
In this Letter, we demonstrate a way to make single-crystal optical fibers with silica glass cladding and (ITO) electrodes embedded between core and cladding with a one-step drawing process with the laser-heated pedestal growth technique. A half-wave voltage () of 6.6 V, effective electro-optic coefficient of , and transmission loss of was achieved in the single-crystal optical fiber with core diameter of 9 μm and electrode distance of 50 μm. Furthermore, the technique can be applicable to make other single-crystal core optical fibers with ITO-embedded electrodes, which could potentially enable many electrically tunable fiber devices along with the unique property of the single-crystal core.
© 2013 Optical Society of America
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