Patent application number | Description | Published |
20090116802 | Optical Control Device and Manufacturing Method Thereof - The purpose of present inventions is to provide an optical control device having a single-mode waveguide in the optical control device having the ridge waveguide, and to stably manufacture and provide the optical control device having the single-mode waveguide with high precision even when the substrate is a thin plate with the thickness of 10 μm or less. An optical control device having a substrate | 05-07-2009 |
20090129718 | Light Modulator and Its Fabrication Method - It is an object of the invention to provide a light modulator using a thin plate having a thickness of 20 μm or less and capable of stably holding a conductive film suppressing troubles such as resonance phenomenon of microwaves in a substrate and pyro-electric phenomenon and to provide a method of fabricating the light modulator. The light modulator includes: a thin plate ( | 05-21-2009 |
20100104241 | METHOD OF ADJUSTING OPTICAL AXIS OF OPTICAL WAVEGUIDE ELEMENT, AND OPTICAL WAVEGUIDE ELEMENT - A method of adjusting the optical axis of an optical waveguide element which can improve a manufacturing yield of the optical waveguide element, an alignment yield between the optical waveguide element and an input waveguide means, etc. and can equalize the branch ratio in a Y-branch waveguide; and an optical waveguide element which can be made compact and also M inhibited from complication in structure by using this method. The optical waveguide element ( | 04-29-2010 |
20100232736 | Optical Control Device - It is an object to provide an optical control device capable of realizing speed matching between a microwave and a light wave or impedance matching of microwaves and of reducing a driving voltage. An optical control device including a thin plate | 09-16-2010 |
20100247025 | OPTICAL ELEMENT - Disclosed is an optical element which includes a support substrate and a thin plate of single crystal stacked on the support substrate through a thermoplastic adhesive, having the advantages of easily regulating the phase of light waves and restoring the regulated state to the original state. The optical element includes a support substrate | 09-30-2010 |
20110103735 | MACH-ZEHNDER WAVEGUIDE TYPE OPTICAL MODULATOR - It is intended to suppress the influence of a photorefractive phenomenon or the coupling of stray light to signal light. A Mach-Zehnder waveguide type optical modulator is provided which includes a thin plate | 05-05-2011 |
20120027337 | OPTICAL MODULATOR - In order to provide an optical modulator capable of suppressing generation of mode mismatching light in the Y-multiplexer in the MZ-type waveguide or mixing of the mode mismatching light with the radiation-mode light or the output light, and separately extracting output light and radiation-mode light, there is provided an optical modulator having a Mach-Zehnder type waveguide on a surface of a dielectric substrate, wherein a waveguide after multiplexing in a Y-multiplexer in an output side of the Mach-Zehnder type waveguide is a multiple mode waveguide | 02-02-2012 |
20150277156 | OPTICAL WAVEGUIDE DEVICE - An object of the invention is to provide an optical waveguide device which is able to efficiently absorb or remove leaked light propagating in a substrate. An optical waveguide device in which an optical waveguide is formed on a substrate, in which the optical waveguide includes a main waveguide through which signal light propagates, and a metal layer (a bonding layer or an electrode) is formed, through a high refractive index layer having a refractive index higher than the refractive index of the substrate, in at least a part of a region on which the main waveguide is not formed. | 10-01-2015 |