| 摘要 |
PROBLEM TO BE SOLVED: To provide a highly reliable optical element, wherein distance between lower and upper electrodes is reduced as much as possible, voltage applied to a core layer is efficiently and satisfactorily secured to reduce voltage consumption, and optical loss of an optical waveguide is reduced. SOLUTION: An optical deflection element is provided with a substrate 1 and the optical waveguide 2 formed on the substrate 1 and comprising an electrooptical material. The optical waveguide 2 is so constituted that the core layer 4 having an optical path formed therein is interposed between lower and upper clad layers 3 and 5. The lower and upper clad layers 3 and 5 are formed by using a conductive oxide as a material and serve as the lower and the upper electrodes for applying voltage to the core layer 4. COPYRIGHT: (C)2007,JPO&INPIT |
