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| Number | Title | Issue Date |
| 7747122 | Method and apparatus for high speed silicon optical modulation using PN diode A method and apparatus for high speed silicon optical modulation is described using a PN diode. In one example, an optical waveguide has adjoining first and second doped semiconductor regions. The first and second regions have opposite doping types and the first dop... | 06/29/2010 |
| 7738755 | Optical waveguide film and photoelectric film An optical waveguide film and an electrical and optical hybrid circuit film having a high durability for folding while keeping the core size of the optical waveguide at a desired level are provided. The optical waveguide film is flexible, having a core made of a res... | 06/15/2010 |
| 7664358 | 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; an adhesive layer formed on at least one surface of the film; and a plurality of projection portions formed on a surface of the adhesive layer and arranged a... | 02/16/2010 |
| 7587114 | Film-shaped optical waveguide production method A film-shaped optical waveguide production method which ensures easy production of individual film-shaped optical waveguides without the need for cutting and stamping. A plurality of film-shaped optical waveguide formation regions are defined on a substrate (1 | 09/08/2009 |
| 7542647 | Optical reception and transmission module An optical transmission unit of an optical reception and transmission module holds a first end portion of the optical waveguide film on the first holding member so that light emitted from the light emitting device is coupled to an incident end surface of the optical... | 06/02/2009 |
| 7499620 | Low loss SOI/CMOS compatible silicon waveguide A method and structure for reducing optical signal loss in a silicon waveguide formed within a silicon-on-insulator (SOI) structure uses CMOS processing techniques to round the edges/corners of the silicon material along the extent of the waveguiding region. One exe... | 03/03/2009 |
| 7496266 | Film waveguide, method of manufacturing film waveguide, and electronic device A method of manufacturing a film waveguide includes supplying a precursor consisting of monomer or oligomer of an elastomer having a flexural modulus after curing smaller than or equal to 1,000 MPa to a substrate; pressing a stamper on the precursor of the elastomer... | 02/24/2009 |
| 7444045 | Hybrid sphere-waveguide resonators Microresonators, such as a microsphere resonators and planar microresonators, are optically coupled to waveguides for input and output of light. It is important that the relative positions of the microresonator and the waveguide are maintained stable, while still ma... | 10/28/2008 |
| 7444055 | Integrated optics arrangement for wavelength (De)multiplexing in a multi-grade vertical stack The invention describes an integrated-photonics arrangement, implementable in a multi-guide vertical integration structure composed from III-V semiconductors and grown in one epitaxial growth run, that allows for vertical and lateral splitting of optical signals co-... | 10/28/2008 |
| 7440660 | Transducer for heat assisted magnetic recording An apparatus includes a first waveguide configured to focus an electromagnetic wave to a focal region, and a second waveguide defining an opening having an end positioned adjacent to the focal region, the second waveguide including a first metallic layer, and second... | 10/21/2008 |
| 7433567 | Multi-quantum well optical waveguide with broadband optical gain A multi-quantum well optical waveguide structure comprises a plurality of active regions including quantum wells with different gain peak wavelengths to provide an ultra broadband optical gain spectrum. Two adjacent sets of active regions having a large band gap dif... | 10/07/2008 |
| 7433550 | Optical modulator and control method therefor A Mach-Zehnder optical modulator capable of feed-back compensating a change due to an optical coupling loss, and the characteristic change peculiar to functional devices, and a control method therefore, are provided. A control method for a semiconductor Mach-Zehnder... | 10/07/2008 |
| 7430355 | Light emissive signage devices based on lightwave coupling A signage device comprising one or more light sources, a waveguide or arrangement of waveguides and photoluminescent features coupled thereto. In one embodiment, a waveguide is adapted to receive light of a first wavelength and the photoluminescent features are adap... | 09/30/2008 |
| 7428360 | Optical waveguide sensor and method of manufacture An optical waveguide environmental sensor is provided that is capable of detecting a target gas or liquid in the ambient environment in an advantageously short period of time. The waveguide is preferably in the form of an optical fiber having a cladding that contain... | 09/23/2008 |
| 7428362 | Photonic crystal surface states A photonic crystal may be configured to support a surface state for logic. ... | 09/23/2008 |
| 7428358 | Optical coupler for coupling an optical fiber into a waveguide An optical coupler for parallel coupling from a single mode optical fiber, or fiber ribbon, into a silicon-on-insulator (SOI) waveguide for integration with silicon optoelectronic circuits. The optical coupler incorporates the advantages of the vertically tapered wa... | 09/23/2008 |
| 7426328 | Varying refractive index optical medium using at least two materials with thicknesses less than a wavelength An optical medium has a graded effective refractive index with a high maximum refractive index change. The medium is formed using alternating layers of two or more materials having significantly different refractive indices. The thickness of the layers of at least o... | 09/16/2008 |
| 7422374 | Optical printed circuit board blank, a kit and a method of making an optical printed circuit board The present invention provides an optical printed circuit board blank, comprising, a support layer; one or more optical waveguides formed thereon; and at least one socket for receiving an optical component, the socket including one or more alignment features to ensu... | 09/09/2008 |
| 7424192 | Frequency conversion with nonlinear optical polymers and high index contrast waveguides Systems and methods for manipulating light with high index contrast waveguides clad with substances having that exhibit large nonlinear electro-optic constants χ2 and χ3. Waveguides fabricated on SOI wafers and clad with electro-optic polymer... | 09/09/2008 |
| 7421160 | Coupling element alignment using waveguide fiducials An optical assembly includes a waveguide assembly and an optical coupling element. The waveguide assembly includes a core, a cladding portion, and, preferably, at least two waveguide core fiducials, the at least two waveguide core fiducials and the core being lithog... | 09/02/2008 |
| 7421171 | Efficient terahertz sources by optical rectification in photonic crystals and metamaterials exploiting tailored transverse dispersion relations A system and a method for generating terahertz (THz) radiation are provided. The system includes a photonic crystal structure comprising at least one nonlinear material that enables optical rectification. The photonic crystal structure is configured to have the suit... | 09/02/2008 |
| 7421178 | Left-handed materials and structures based on strong dielectric anisotropy Disclosed herein are exemplary embodiments of materials and structures that have a negative refractive index. For example, one exemplary embodiment is a waveguide structure comprising a first waveguide border element having a first substantially planar surface, and ... | 09/02/2008 |
| 7418179 | Surface plasmon devices A device including an input port configured to receive an input signal is described. The device also includes an output port and a structure, which structure includes a tunneling junction connected with the input port and the output port. The tunneling junction is c... | 08/26/2008 |
| 7418166 | Device and approach for integration of optical devices and waveguides therefor Optical devices having integrated waveguide and active areas are realized using a crystallization approach involving the inhibition of defects typically associated with liquid-phase crystalline growth of lattice mismatched materials. According to one example embodim... | 08/26/2008 |
| 7418163 | Optoelectrical package An integrated optoelectrical package for optoelectrical integrated circuits (ICs) is disclosed. The package includes a package substrate having contact receiving members on an upper surface. The contact receiving members are electrically connected to contacts on the... | 08/26/2008 |
| 7418161 | Photonic crystal-based optical elements for integrated circuits and methods therefor Exemplary embodiments of the invention provide photonic crystal-based optical elements for integrated circuits. A photonic crystal optical device comprises a substrate and a plurality of pillars forming a photonic crystal structure over the substrate. The pillars ar... | 08/26/2008 |
| 7418165 | Flexible optical waveguides for backplane optical interconnections A flexible optical connector suitable for use in an optical backplane for interconnecting optical circuit boards, and methods of making the optical connector, are disclosed. The flexible optical connector comprises a plurality of waveguides on two or more levels pro... | 08/26/2008 |
| 7415185 | Buried-waveguide-type light receiving element and manufacturing method thereof A buried-waveguide light detecting element includes an n-type cladding layer on a Fe-InP substrate, a waveguide on a portion of the n-type cladding layer, and in which an n-type light guide layer, an i-light guide layer having a refractive index equal to or higher t... | 08/19/2008 |
| 7415184 | Wideband optical coupling into thin SOI CMOS photonic integrated circuit An arrangement for providing optical coupling into and out of a relatively thin silicon waveguide formed in the SOI layer of an SOI structure includes a lensing element and a defined reference surface within the SOI structure for providing optical coupling in an eff... | 08/19/2008 |
| 7407817 | Surface plasmon resonance sensors and method for detecting samples using the same Disclosed is an optical sensing device including a source unit providing a beam of light with continuously modulated phase retardation between p- and s-polarization components of the light by employing a LCM; a reference unit receiving a first part of the light to p... | 08/05/2008 |
| 7406222 | Composite evanescent waveguides and associated methods A composite evanescent waveguide can include a first structured dielectric layer and a second dielectric material oriented adjacent one another to form a wave propagation interface between the first structured dielectric layer and second dielectric material. Each of... | 07/29/2008 |
| 7403690 | Photonic crystal surface states A photonic crystal may be configured to support a surface state for logic. ... | 07/22/2008 |
| 7403676 | Optical waveguide module An optical waveguide module includes a wiring board, and a light-receiving element and optical waveguide substrate that are positioned on both sides of this wiring board. The wiring board includes a base member having transparency to light of the wavelength that can... | 07/22/2008 |
| 7396676 | Evanescent wave sensor with attached ligand The invention in particular embodiments provides an evanescent wave sensor which includes a ligand bound to a sensor substrate via a NCYX linker moiety, as defined herein. Methods of making the subject evanescent wave sensors are also provided which include contacti... | 07/08/2008 |
| 7397994 | Two-dimensional photonic crystal slab having three-dimensional local structure The present invention aims to provide a two-dimensional photonic crystal having an optical resonator, which allows the control of the front/back emission ratio of light. To achieve this object, a refractive index member made of a material having a refractive index d... | 07/08/2008 |
| 7394950 | Optical modulator An optical modulator of the Mach-Zehnder type including electrodes disposed above a substrate having a pair of linear portions of an optical waveguide includes a signal electrode to which modulating signals are applied; first and second earth electrodes; and a bias ... | 07/01/2008 |
| 7391948 | Optical waveguide structure Waveguide structures in which light confinement strength varies along the direction of light propagation are described. The waveguides include a core adapted to propagate light along a path defined by the core and a cladding material that at least partially surround... | 06/24/2008 |
| 7391949 | Low loss hollow core optical waveguide An optical waveguide is constructed so as to comprise a non-solid core surrounded by a solid-state material. The non-solid core has an index of refraction which is lower than the index of refraction of the surrounding solid state material, and light can be transmitt... | 06/24/2008 |
| 7391938 | Technique to enhance the electro-optic coefficient of polymers by using a sol-gel cladding layer to increase poling efficiency Poling electro-optic polymers on an organically modified sol-gel cladding layer can enhance Pockel's coefficient by up to a factor of 2.5. ... | 06/24/2008 |
| 7389015 | Mechanically decoupled opto-mechanical connector for flexible optical waveguides embedded and/or attached to a printed circuit board Printed circuit boards that include optical interconnects include a flexible optical waveguide embedded or locally attached to the board having at least one end mechanically decoupled from the board during fabrication that can be fitted with a mechanical connector. ... | 06/17/2008 |
