Optical waveguide device
专利汇可以提供Optical waveguide device专利检索，专利查询，专利分析的服务。并且PURPOSE:To prevent device characteristics from being fluctuated by a temp. change by providing a conductive material for joining 1st and 2nd dielectric substrates and joining the 1st and 2nd ferroelectric substrates via the conductive material in such a manner that the sponteneous polarization directions are reversed from each other. CONSTITUTION:Electrodes 5 which impress electric fields to waveguides 4 diffused with Ti are formed via an SiO2 buffer layer 3 on the dielectric substrate (Z plate LiNbO3 substrate) 1 formed with the waveguides 4 on the face (-Z face) coinciding with the spontaneous polarization direction. Further, the dielectric substrate 2 the rear face of which is the -Z face and has the same thickness as the thickness of the substrate 1 is stuck to the rear face of the substrate 1 via the conductive layer 6. Since the spontaneous polarization directions of the substrate 1 and 2 are reversed according to this constitution, these directions are negated by each other and the pyroelectricity is eventually prevented. The pyroelectricity is prevented even if the waveguides are formed by using the dielectric substrate having the pyroelectric effect. The optical waveguide device which is not fluctuated in the characteristics by a temp. fluctuation, etc., is thus obtd.，下面是Optical waveguide device专利的具体信息内容。
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6 热电元件
