摘要:
A gradient-index lens is structured by a multilayer film that includes therein a plurality of layers each of which has different refractive index and layer thickness from the other.
摘要:
An optical device includes a substrate, a core provided on the substrate, a first clad and a second clad formed around the core. The optical device further includes a light absorber layer, provided on the substrate, which absorbs light leaked from the core. The light absorber layer is formed of, for instance, the same material as that constituting the core.
摘要:
In the optical waveguide which comprises a core layer to be an optical transmission region and an upper clad layer and a lower clad layer covering the surrounding of the core layer and of which the upper clad layer is formed while being shrunk in the volume, a stress moderating layer formed a material with a smaller storage modulus than that of the upper clad layer is formed between the upper clad layer and the lower clad layer in at least a portion of a region where the upper clad layer and the lower clad layer are brought into contact with each other.
摘要:
An optical device includes a substrate, a core provided on the substrate, a first clad and a second clad formed around the core. The optical device further includes a light absorber layer, provided on the substrate, which absorbs light leaked from the core. The light absorber layer is formed of, for instance, the same material as that constituting the core.
摘要:
A gradient-index lens is structured by a multilayer film that includes therein a plurality of layers each of which has different refractive index and layer thickness from the other.
摘要:
An optical waveguide in which a groove is formed on the top surface of a substrate used as a lower clad and a core is formed in the groove, characterized in that the core is formed in such a way that the top face of the core within the groove is at a lower level than the top face of the substrate, and an upper clad may also be provided on the core, and the core is preferably formed from an organic-inorganic hybrid material.
摘要:
Disclosed herein is an optical waveguide comprising a core layer to be an optical transmission region, an upper clad layer and a lower clad layer covering the core layer, in which the core layer, the upper clad layer and the lower clad layer are formed from resin materials, characterized in that a microlens made of a material having a higher refractive index than that of a material constituting said core layer is disposed in the vicinity of an end face of said core layer.
摘要:
An organometallic polymer material having a -M-O-M- bond (M is a metal atom) and containing a metal alkoxide having only one hydrolyzable group and/or a hydrolysate of the metal alkoxide and preferably further containing an organic acid anhydride and/or an organic acid.
摘要:
Disclosed herein is an optical waveguide comprising a core layer to be an optical transmission region, an upper clad layer and a lower clad layer covering the core layer, in which the core layer, the upper clad layer and the lower clad layer are formed from resin materials, characterized in that a microlens made of a material having a higher refractive index than that of a material constituting said core layer is disposed in the vicinity of an end face of said core layer.
摘要:
Disclosed herein is an optical waveguide comprising a core layer to be an optical waveguide region, an upper clad layer covering the core layer and a lower clad layer, characterized in that an ultraviolet control region for preventing ultraviolet light from entering is provided at any one location of under the lower clad layer, on an interface of the lower clad layer and the upper clad layer, and on the upper clad layer. And a method of fabricating this optical waveguide is also disclosed.