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| Number | Title | Issue Date |
| 8170388 | Method for effective refractive index trimming of optical waveguiding structures and optical waveguiding structures A method for trimming an effective refractive index of optical waveguiding structures made for example in a high refractive index contrast material system. By compaction of cladding material in a compaction area next to patterns or ridges that are formed in the core... | 05/01/2012 |
| 8170389 | Optical waveguide, and thermally-assisted magnetic recording head including the same An optical waveguide includes a core and a clad. The core includes first to third propagation parts, and a coupling part that couples the first to third propagation parts together. The first propagation part has a first incidence end face on which part of incident l... | 05/01/2012 |
| 8160416 | Optical device An optical device wherein an optical waveguide is formed on a dielectric substrate, the optical device includes an input part and an output part where the optical waveguide and corresponding optical fibers are connected. A stress layer is provided for at least one o... | 04/17/2012 |
| 8155492 | Photonic crystal and method of fabrication A method is disclosed for forming a photonic crystal in a homogeneous layer of material. The method enables the fabrication of 1D, 2D, or 3D photonic crystals. Photonic crystals in accordance with embodiments of the present invention exhibit low temperature sensitiv... | 04/10/2012 |
| 8155493 | Flexible optical waveguide and process for its production The invention provides a flexible optical waveguide in which an optical waveguide film is directly formed on a substrate without using an adhesive and which is excellent in flexibility of the optical waveguide film, including the substrate, and excellent in adhesive... | 04/10/2012 |
| 8150228 | Acid block for hybrid silicon device processing compatible with low-loss waveguides An acid-stop structure for a rib waveguide comprises a fin structure formed between the sidewalls in each rib channel of the rib waveguide, thereby preventing acids and other etchants from flowing down the rib channel and under a die that has been bonded to a wafer.... | 04/03/2012 |
| 8126305 | Electromagnetic wave propagating structure An electromagnetic wave propagating structure includes a main body having surfaces capable of blocking propagation of an electromagnetic wave, and including an incident side and an exit side opposite to the incident side in a wave-propagating direction. The main bod... | 02/28/2012 |
| 8126306 | Two-dimensional photonic crystal A two-dimensional photonic crystal according to the present invention includes a first layer having a dielectric first layer slab in which first layer holes having a refractive index lower than that of the first layer slab are arranged cyclically, a second layer for... | 02/28/2012 |
| 8111965 | Waveguide for thermo optic device A waveguide and resonator are formed on a lower cladding of a thermo optic device, each having a formation height that is substantially equal. Thereafter, the formation height of the waveguide is attenuated. In this manner, the aspect ratio as between the waveguide ... | 02/07/2012 |
| 8098971 | Method and apparatus for electromagnetic resonance using negative index material An electromagnetic resonance device includes an input reflector, an output reflector, and a periodic dielectric medium (PDM) disposed between the input reflector and the output reflector. The input reflector and output reflector are configured to be reflective to ra... | 01/17/2012 |
| 8094987 | Silica-on-silicon waveguides and related fabrication methods True time delay silica waveguides and related fabrication methods are disclosed. Also disclosed are true time delay silica waveguides comprising wedged silica structures. ... | 01/10/2012 |
| 8078027 | Focus enhancing electromagnetic wave propagating device A focus enhancing electromagnetic wave propagating device includes a main body formed with a main wave-propagating structure (MS) for focusing an electromagnetic wave into a focusing light spot, and an auxiliary wave-propagating channel (AC) for allowing the wave to... | 12/13/2011 |
| 8055113 | Optical substrate having a supporting substrate and an optical waveguide film adhesively bonded to the supporting substrate An optical waveguide film includes a clad layer having an adhesive function; and a core layer covered by the clad layer. ... | 11/08/2011 |
| 8055112 | Methods of manufacturing optical waveguide film and optical substrate An optical waveguide film includes a clad layer having an adhesive function; and a core layer covered by the clad layer. ... | 11/08/2011 |
| 8045834 | Silica-on-silicon waveguides and related fabrication methods True time delay silica waveguides and related fabrication methods are disclosed. Also disclosed are true time delay silica waveguides comprising wedged silica structures. ... | 10/25/2011 |
| 7995890 | Device for light-based particle manipulation on waveguides An optical waveguide is provided which comprises a non-solid core layer surrounded by a solid-state material, and two light sources capable of introducing light into said non-solid core at opposite ends along a Z-axis of said non-solid core to form two propagating l... | 08/09/2011 |
| 7995891 | Photonic band gap router An arrangement includes a photonic band-gap assembly comprising at least one input wave guide and at least one output wave guides, and at least one routing element responsive to signals to selectively route a signal from the input wave guide to one or more of the ou... | 08/09/2011 |
| 7991257 | Method of manufacturing an optical composite Embodiments of this invention include composite articles having specific optical properties. In one embodiment of this invention, a composite comprises high and low refractive index light transmitting material and surface relief features. In further embodiments, the... | 08/02/2011 |
| 7957620 | Two-dimensional photonic crystal resonator The present invention intends to provide a two-dimensional photonic crystal resonator having a high Q-value. The slab-shaped body 21 is provided with cyclically arranged holes 22. The body 21 is divided into three areas 31-33 with ... | 06/07/2011 |
| 7953310 | Beam homogenizer, laser irradiation apparatus, and method for manufacturing semiconductor device The present invention provides a beam homogenizer being able to form a rectangular beam spot having homogeneous energy distribution in a direction of its major axis without using the optical lens requiring to be manufactured with high accuracy. In addition, the pres... | 05/31/2011 |
| 7949220 | Hybrid optical/electrical mixed circuit board The present invention provides a hybrid optical/electrical circuit board in which an optical waveguide prepared by an exposing and developing step is combined with an electric circuit, wherein a printed wiring board containing an inorganic filler and a light absorbe... | 05/24/2011 |
| 7941023 | Ultra low-loss CMOS compatible silicon waveguides A low loss optical waveguiding structure for silicon-on-insulator (SOI)-based arrangements utilizes a tri-material configuration including a rib/strip waveguide formed of a material with a refractive index less than silicon, but greater than the refractive index of ... | 05/10/2011 |
| 7941024 | Buried heterostructure device having integrated waveguide grating fabricated by single step MOCVD The device is an optoelectronic device or transparent waveguide device that comprises a growth surface, a growth mask, an optical waveguide core mesa and a cladding layer. The growth mask is located on the semiconductor surface and defines an elongate growth window ... | 05/10/2011 |
| 7936959 | Apparatus for focusing plasmon waves An apparatus comprises a thin film metallic layer, a first dielectric layer arranged on a first side of said thin film metallic layer and having a first index of refraction, a second dielectric layer arranged on a side of the first dielectric layer opposite of said ... | 05/03/2011 |
| 7933483 | Electro-optical memory cell An electro-optical memory cell having a non-volatile programmable refractive index and a method of making. The memory cell includes: a waveguiding structure having a transition metal oxide with oxygen vacancies; a plurality of electrodes for applying an electrical f... | 04/26/2011 |
| 7920769 | Optical element, integrated optic device and optical information transmission system In a compact formed by subjecting an ultrafine particle brittle material supplied on a substrate to mechanical impact force as a load, whereby the ultrafine particle brittle material is crushed and joined to each other, manganese is added into the ultrafine particle... | 04/05/2011 |
| 7920770 | Reduction of substrate optical leakage in integrated photonic circuits through localized substrate removal Structures including optical waveguides disposed over substrates having a chamber or trench defined therein, and methods for formation thereof. ... | 04/05/2011 |
| 7912335 | Two-dimensional photonic crystal and optical device using the same An object of the present invention is to provide a two-dimensional photonic crystal in which conditions for both the TE-polarized light and the TM-polarized light can be easily satisfied. A body includes a first area having a triangular lattice pattern arrangement o... | 03/22/2011 |
| 7903920 | Implementation of one or more optical waveguides in reduced optical material One or more first portions of a reduced optical material wafer are covered with a masking layer that leaves uncovered one or more second portions of the reduced optical material wafer. The reduced optical material wafer is exposed to an oxidizing atmosphere to rever... | 03/08/2011 |
| 7894699 | Photonic based interconnects for interconnecting multiple integrated circuits Various embodiments of the present invention are directed to photonic-based interconnects for transmitting data encoded in electromagnetic signals between electronic mosaics. In one embodiment of the present invention, a photonic-based interconnect comprises a first... | 02/22/2011 |
| 7881580 | Optical waveguide device and manufacturing method for optical waveguide device To obtain an optical waveguide device capable of improving mounting accuracy and productivity for correcting misalignment of alignment marker caused by distortion due to a substrate stressed and distorted. An optical waveguide device includes an optical waveguide se... | 02/01/2011 |
| 7865052 | Optical waveguide having an optical transmission direction changing part An optical waveguide includes: a first clad layer; a core layer formed on the first clad layer; a second clad layer formed on the core layer; and an optical transmission direction changing part. The optical transmission direction changing part is configured and arra... | 01/04/2011 |
| 7856163 | Planar lightwave circuit, design method for wave propagation circuit, and computer program A planar lightwave circuit is provided which can be easily fabricated by an existing planar-lightwave-circuit fabrication process, which can lower the propagation loss of signal light and which can convert inputted signal light so as to derive desired signal light. ... | 12/21/2010 |
| 7856164 | Waveguide device A waveguide device that guides light through a core part formed in a cladding part is disclosed. The waveguide device includes a waveguide part formed in the cladding part so as to have the same refractive index as the refractive index of the core part so that the w... | 12/21/2010 |
| 7856165 | Optical waveguide film and manufacturing method thereof An optical waveguide film includes a film including a clad layer and a core layer covered by the clad layer; and an adhesive layer formed at least on one surface of the film, having a rough structured surface having an arithmetic mean surface roughness of 0.1 to 2.0... | 12/21/2010 |
| 7853111 | Two-dimensional photonic crystal The present invention provides a two-dimensional photonic crystal in which an absolute photonic band gap (PBG), i.e. a photonic band gap that is effective for both the TE-polarized light and the TM-polarized light within a predetermined wavelength range, is created ... | 12/14/2010 |
| 7844156 | Optical waveguide film and optical transmitter and receiver module An optical waveguide includes: an optical waveguide core through which light propagates, at least one end portion of the optical waveguide core in a longitudinal direction thereof having an inclined surface; a reflective layer provided on the inclined surface and fo... | 11/30/2010 |
| 7831122 | 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 ... | 11/09/2010 |
| 7826702 | Optically coupling into highly uniform waveguides In accordance with the present invention, one or more laser diodes are efficiently coupled into a waveguide amplifier in order to provide either an efficient amplifier or a laser. Light from one or more laser diodes is efficiently coupled into one or more waveguides... | 11/02/2010 |
| 7826703 | Planar illuminating device Provided is a planar lighting device having a thin shape and capable of emitting uniform illumination light with less brightness unevenness. The planar lighting device includes a first and a second light sources arranged at a given distance apart from each other and... | 11/02/2010 |
