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| Number | Title | Issue Date |
| 8189973 | Efficient collimation of light with optical wedge Embodiments of optical collimators are disclosed. For example, one disclosed embodiment comprises an optical waveguide having a first end, a second end opposing the first end, a viewing surface extending at least partially between the first end and the second end, a... | 05/29/2012 |
| 8189972 | Optical mode coupler An optical coupler includes a first waveguide configured to supply a first optical signal having a wavelength and a second waveguide. The first optical signal having a first mode. The first waveguide has a tapered portion being spaced from the second waveguide by a ... | 05/29/2012 |
| 8160413 | Fiber optic coupler with variable coupling ratio and manufacturing method thereof A fiber loop formed by bending of a connection section between the first fiber and the second fiber includes a coupling region and an upper taper region as well as a down taper region arranged symmetrically on two sides of the coupling region. Then the fiber optic s... | 04/17/2012 |
| 8150224 | Spot-size converter A spot-size converter is equipped with a substrate, a clad that is formed on the substrate, a core that is embedded inside the clad, and an input/output end face. The core is tapered toward the input/output end face along a light propagation direction. In the clad, ... | 04/03/2012 |
| 8045832 | Mode size converter for a planar waveguide A process for forming a mode size converter with an out-of-plane taper formed during deposition with a shadow mask is disclosed. Mode-size converters according to the present invention can have any number of configurations. Measured coupling efficiencies for wavegui... | 10/25/2011 |
| 8041164 | Transition device for optical waveguides A transition part (1) between two optical waveguides (2,3) with different index contrast is characterised in that the transition part (1) includes a non-adiabatically up-tapered longitudinal section (8), and in that the transition (7 | 10/18/2011 |
| 8031994 | Optical waveguide for touch panel and touch panel using the same An optical waveguide for a touch panel in which the intensity of light beams emitted from light-emitting portions of a plurality of light-emitting cores in the form of branches is substantially uniform independently of the branch position of the light-emitting cores... | 10/04/2011 |
| 8009948 | Apparatus and methods using hollow-core fiber tapers An optical device and methods of using an optical device are provided. The optical device includes a hollow-core fiber including a first portion and a second portion. The first portion includes a hollow core having a first diameter. The second portion includes a hol... | 08/30/2011 |
| 7991255 | Means of coupling light into optical fibers and methods of manufacturing a coupler The invention relates to a pump coupler (2) and a manufacturing method. The pump coupler (2) comprises a least one signal fiber (50) for outputting optical energy, multiple pump fibers (31) for inputting optical energy into the signal fib... | 08/02/2011 |
| 7978943 | Monolithic pump coupler for high-aspect ratio solid-state gain media In one or more embodiments, an optical fiber coupler for coupling pump radiation into a rectangular optical fiber includes a fiber section and a pump fiber. The fiber section includes a core having a high aspect ratio cross-section and an interface section. The core... | 07/12/2011 |
| 7970246 | Efficient collimation of light with optical wedge Embodiments of optical collimators are disclosed. For example, one disclosed embodiment comprises an optical waveguide having a first end, a second end opposing the first end, a viewing surface extending at least partially between the first end and the second end, a... | 06/28/2011 |
| 7933479 | Multimode fiber outer cladding coupler for multi-clad fibers A multimode fiber coupler has a structure in which a plurality of tapered pump fibers are coupled laterally to a multi-clad fiber, such as a double clad fiber (DCF). Such coupler is produced by first forming a plurality of tapered pump fibers and positioning them ar... | 04/26/2011 |
| 7899286 | Optical coupling device An optical coupling device for coupling an optical signal propagating in an optical fiber or space to an optical waveguide includes a lower cladding layer formed on a substrate, an optical waveguide formed on the lower cladding layer such that the tip of the optical... | 03/01/2011 |
| 7869676 | Liquid crystal display panel with dual-TFTs pixel units having different TFT channel width/length ratios An exemplary liquid crystal display (200) includes a plurality of gate lines (201), data lines (202), common lines (210), first pixel electrodes (204) and second pixel electrodes (214). Each of areas defined by one of the fi... | 01/11/2011 |
| 7840107 | Optical pumping device, optical amplifier, fiber laser, and multicore fiber for optical pumping device An optical pumping device is provided in which a multi-core fiber obtained by bundling up a plurality of optical fibers, which are input ports, and a double clad fiber for optical pumping are spliced through a bridge fiber composed of a double clad fiber having a ta... | 11/23/2010 |
| 7805037 | Multiplexer having improved efficiency The multiplexer includes multi-mode waveguides positioned on a base such that a plurality of the waveguides serve as input waveguides and one or more of the waveguides serve as an output waveguide. The waveguides intersect one another such that light signals traveli... | 09/28/2010 |
| 7792403 | Adiabatic polarization converter The present invention relates to a waveguide structure, and methods for making the same. The waveguide structure has a polarization rotator for rotating the polarization of the electromagnetic signal, preferably by about ninety-degrees. In one embodiment, the polari... | 09/07/2010 |
| 7742665 | Apparatus and methods using hollow-core fiber tapers An optical filter and methods of filtering are provided. The optical filter includes a hollow-core fiber including a first portion and a second portion. The first portion includes a hollow core having a first diameter and a cladding having a second diameter. The sec... | 06/22/2010 |
| 7693373 | Bidirectional optical link over a single multimode fiber or waveguide A transceiver for use in a bidirectional optical communication link over a multimode channel is provided. The transceiver includes a single transverse mode light source in a transmitter. A waveguide or fiber based bidirectional coupler projects the transmitter mode ... | 04/06/2010 |
| 7664352 | Spot size converter A spot size converter has a first core, a larger second core, and a clad disposed on a substrate. The first core has a rectilinear cross-sectional shape and is embedded in the clad, except at its ends. One of these ends has a sloping surface along which the thicknes... | 02/16/2010 |
| 7643710 | Method and apparatus for efficient coupling between silicon photonic chip and optical fiber A method and apparatus for efficient coupling between a silicon photonic chip and an optical fiber is described. In one embodiment, an apparatus according to embodiments of the present invention includes: a first optical waveguide having a first end to optically cou... | 01/05/2010 |
| 7639914 | Liquid crystal display panel with dual-TFTs pixel units having different TFT channel width/length ratios An exemplary liquid crystal display (200) includes a plurality of gate lines (201), data lines (202), common lines (210), first pixel electrodes (204) and second pixel electrodes (214). Each of areas defined by one of the fi... | 12/29/2009 |
| 7623745 | Photonic funnels and anisotropic waveguides for subdiffraction light compression and pulse management at the nanoscale The present invention provides an apparatus for propagating electromagnetic radiation of a selected vacuum wavelength beyond the diffraction limit. The apparatus comprises a waveguide core and a cladding disposed about the core. The waveguide core may include a mate... | 11/24/2009 |
| 7609921 | Optical fiber part and laser processing machine An optical fiber part includes an optical fiber having a main fiber, a taper fiber and a small-diameter fiber. The core diameter of the taper fiber decreases along an optical axis. Further, a heat-radiation silicon adhesive that is a highly heat-conductive material ... | 10/27/2009 |
| 7606452 | Optical fiber fundamental mode field expander A device for providing an expanded mode field from a single mode optical waveguide is formed by fusing a length of single mode optical fiber with a length of fiber rod absent a cladding and adiabatically tapering the fused region. The length of single mode fiber has... | 10/20/2009 |
| 7546014 | Optical directional coupler An optical directional coupler (1) comprises first and second straight optical waveguides (2, 3) having respective cores (2a, 3a) extending longitudinally close to each other to form an optical coupler portion, and a tapered... | 06/09/2009 |
| 7450803 | Optical waveguide The invention is directed to an optical waveguide that reduces an excess loss caused in a curved waveguide region by a deviation of the center axis of a beam propagating mode from the center axis of the optical waveguide. The optical waveguide has its part curved, a... | 11/11/2008 |
| 7450802 | Optical fiber coupler and optical fiber therefor An optical fiber coupler is comprised of a fusion-elongated portion 15 in which an optical fiber 11 which is designed and fabricated for use at a wavelength in the vicinity of 1.55 μm and an optical fiber 12 which is designed and fabricated for... | 11/11/2008 |
| 7447404 | Photonic integrated circuit An optical platform including optical bench, an optical or photonic coupling device and a photonic circuit. The photonic circuit includes a photonic crystal along a waveguide and/or defect. The coupling device may be a waveguide or impedance matching interconnection... | 11/04/2008 |
| 7444050 | S-shaped curved optical waveguide and optical device The present invention relates to a curved optical waveguide which is free of any axis-deviation structure in the middle of the waveguide and which has a sigmoidal core shape, wherein the curvature thereof at one end is zero and the curvature thereof at the other end... | 10/28/2008 |
| 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 |
| 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 |
| 7440664 | Microstructured optical waveguide for providing periodic and resonant structures A microstructured optical waveguide is formed to include a periodic sequence of “plugs” of optically active material within the inner cladding air tunnels. The plugs are utilized as a grating structure for generating resonant and periodic structures. The wavegui... | 10/21/2008 |
| 7437046 | Optical fiber configuration for dissipating stray light An optical transmission fiber is formed to include a relatively low-index, relatively thin outer cladding layer disposed underneath the protective polymer outer coating. Stray light propagating along an inner cladding layer(s) within the fiber will be refracted into... | 10/14/2008 |
| 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 |
| 7424197 | Luminaire device An optical device for collecting light and selectively outputting or concentrating the light. A layer has an optical index of referaction n1, and top, bottom and side surfaces defining an angel of inclination φ. A back surface spans the top, bottom and s... | 09/09/2008 |
| 7421186 | Modified-output fiber optic tips A laser handpiece is disclosed, including a shaped fiber optic tip having a side-firing output end with a double bevel-cut shape. The shaped fiber optic tip can be configured to side-fire laser energy in a direction away from a laser handpiece and toward sidewalls o... | 09/02/2008 |
| 7418188 | Luminaire device An optical device for collecting light and selectively outputting or concentrating the light. A layer has an optical index of referaction n1, and top, bottom and side surfaces defining an angle of inclination φ. A back surface spans the top, bottom and s... | 08/26/2008 |
| 7406220 | Beam steering and combination Systems and methods for steering at least one of two or more optical input beams and forming a combined optical output beam are disclosed. A system has a waveguide, one or more phase controlling devices and one or more beam steering devices. The waveguide is configu... | 07/29/2008 |
| 7400801 | Bidirectional HDCP module using single optical fiber and waveguide combiner/splitter Embodiments provide single fiber bidirectional HDCP modules. A signal fiber module includes at least one laser and at least one detector and a waveguide combiner/splitter. An optical fiber is used as a cylindrical lens in order to partially collimate in the vertical... | 07/15/2008 |
