Hideaki Okayama, A. Matoba, Ryota Shibuya, Tomoyuki Ishida
Abstract
A Ti: LiNbO3 Δβ reversal directional coupler switch with built-in optical bias is demonstrated. Optical bias is introduced by alternating the width of coupled waveguides. Drive voltages can be reduced without significant degradation of loss and crosstalk characteristics.
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A Ti: LiNbO3 Δβ reversal directional coupler switch with built-in optical bias is demonstrated. Optical bias is introduced by alternating the width of coupled waveguides. Drive voltages can be reduced without significant degradation of loss and crosstalk characteristics.
Key concepts: Power dividers and directional couplers, Crosstalk, Optical switch, Hybrid coupler, Biasing, Optics, Lithium niobate, Voltage