METHOD OF FABRICATING OPTICAL FUNCTIONAL ELEMENT

摘要

A comb-teeth electrode, a frame electrode, and an inter-electrode wire are formed on a first major surface of a substrate made of a ferroelectric material. A back-face electrode is formed on a second major surface of the substrate. A periodically-poled structure is formed by applying a voltage between the frame electrode and the back-face electrode. A region equivalent to the periodically-poled structure is cut from the substrate thereby fabricating an optical functional element. The inter-electrode wire is formed on an insulating layer that is formed on the substrate.