Kyocera Corporation

Masato Shinya

Toru Fukano

Yuji Masuda

Koji Takemura

A substrate for mounting an optical component is provided with a base member having a semiconductor device mounting portion including a higher located first area to have optical semiconductor devices mounted on its outer surface and a second area which is stepped down from the first area so as to be located lower than the first area; an insulation layer provided in the second area of the base member so as to have substantially the same height as the first area and having a smaller dielectric loss tangent than the base member; and driving electrode patterns provided on the insulation layer for driving the optical semiconductor devices. Further, an optical module is constructed by mounting optical semiconductor devices on the base member and providing an optical waveguide so as to be optically coupled with the optical semiconductor devices.

Substrate for mounting an optical component and optical module provided with the same

Plural layers of metallic particle layers in which metallic particles having morphological anisotropy are dispersed and dielectric layers are alternately stacked on at least one pricipal surface of a substrate having transparency to form a polarizing layer. The content of the group 0 elements in the polarizing layer is kept not higher than 1.5.times.10.sup.20 molecules/cm.sup.3.

Polarizer and a production method thereof and an optical isolator

A metal such as Au and a dielectric such as borosilicate glass are simultaneously sputtered to form a film on a glass substrate. Next, this film is heated to grow metal particulates. Next, the substrate is drawn on heating to give an anisotropy to the metal particulates and produce a polarizer. The metal particulates are spheroidal and are dispersed almost homogeneously in the dielectric.

Growing community of inventors

Uji, Japan

Masato Shinya