Did You Know...
...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
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| Number | Title | Issue Date |
| 7881574 | Optical device Provided is an optical device, which includes a substrate, a first cladding disposed on the substrate, a first optical waveguide extended in a first direction on the first cladding, and having a first refractive index, a side grating formed in at least one side of t... | 02/01/2011 |
| 7444041 | System, method and apparatus for improved electrical-to-optical transmitters disposed within printed circuit boards The present invention provides a system, method and apparatus for improved electrical-to-optical transmitters (100) disposed within printed circuit boards (104). The heat sink (110, 200) is a thermal conductive material disposed within a cavity ... | 10/28/2008 |
| 7352934 | Three dimensional high index optical waveguides bends and splitters An optical cavity structure for bending optical signals is provided. The optical cavity structure includes an input port for receiving input optical signals from a first waveguide. The optical cavity structure also includes an interconnecting structure that receives... | 04/01/2008 |
| 7352925 | Photoelectronic device and production method of the same A photoelectronic device capable of maintaining the degree of freedom in designing for dealing with design changes and responding to producing a variety of kinds in a small amount, and the production method are provided: wherein a light emitting element for emitting... | 04/01/2008 |
| 7343070 | Optical splitter with tapered multimode interference waveguide A 1×2 splitter design having low loss is described. The splitter has a non-adiabatic tapered waveguide (22) connected between a substantially single-mode input waveguide (20) and two output waveguides (24, 26). The non-adiabatic tapered wavegui... | 03/11/2008 |
| 7331722 | Optical module for housing an optical component An optical module for housing an optical component to which optical fibers are to be connected, the optical module comprises a casing; at least two round fiber guides which are arranged within the casing, spaced at a distant from each other and around which the opti... | 02/19/2008 |
| 7333705 | Photonic crystal energy converter A photonic crystal is configured with wavelength converting material to act as a concentrator for electromagnetic energy. The concentrator may also be configured with energy conversion devices to convert the electromagnetic energy into another form of energy. ... | 02/19/2008 |
| 7329050 | Tapered, single-mode optical connector Disclosed herein are an optical device, such as a connector or mode enlarger, and a method of fabricating the device. The disclosed device includes an optical medium having a first face for, e.g., permanent attachment to a waveguide, a second face for, e.g., a non-p... | 02/12/2008 |
| 7324728 | Optical connector with total internal reflection abutting surface An optical connector (10) comprises at least one optical guide (12) for carrying optical radiations; a total internal reflection surface (11) upon which, in use, said radiations impinge, so that the radiation in the optical guide is reflected by... | 01/29/2008 |
| 7324729 | Optical device An optical device is made up of a glass substrate, an optical fiber array fixed to an upper portion of the glass substrate, a slit that extends from an upper surface of the optical fiber array into the glass substrate, a filter member inserted into the slit, and a r... | 01/29/2008 |
| 7313301 | Optical fiber device, optical monitor and optical switch In order to enable coupling two multi-mode optical fibers with relatively high efficiencies while increasing the distance between lenses to be interposed as compared with the prior arts, with a device according to the present invention, a first condenser lens and a ... | 12/25/2007 |
| 7300213 | Member holding optical transmission line and optical module In an optical module, a member has a hole and a mounting surface in which the hole is open and electric wiring is formed. A recess is formed in the mounting surface. The electric wiring is formed in the recess and is continuously extended to an outside the recess. T... | 11/27/2007 |
| 7295744 | Frequency-selective light coupler-decoupler device A frequency-selective light coupler-decoupler device comprising a component of photonic crystal structure in which there is formed a waveguide having at least one longitudinal edge with a small number of rows of periodic elements of the photonic crystal so as to for... | 11/13/2007 |
| 7272276 | Optical performance monitor An optical performance monitor for measuring the performance of optical networks has an echelle grating for demultiplexing an input beam into a plurality of wavelengths that are focused onto an array of divided output waveguides. Each divided output waveguide is pos... | 09/18/2007 |
| 7242822 | Optical connection board and optical signal transmission Optical signal transmission system comprising optical signal transmission board having first optical waveguide, and optical connection board having second optical waveguide and inserted into opening of optical signal transmission board substantially perpendicularly ... | 07/10/2007 |
| 7236708 | Optical communication system with optical output level control function An optical communication system can increase a minimum optical reception level or the number of connectable optical receivers by controlling optical output levels of its optical transmitter. The optical communication system includes the optical transmitter having an... | 06/26/2007 |
| 7218799 | External optical modulator An optical modulator structure includes a block that includes electro-optical (EO) materials. A waveguide and electrode structure is formed on a substrate. The block is in close proximity to the waveguide and electrode structure so as to form optical modulation when... | 05/15/2007 |
| 7215846 | Mode discriminating on-chip optical coupler for an optical receiver connected to dual mode/multimode fiber A mode coupler structure includes a discriminating structure that discriminates between various incoming modes from an input optical fiber structure. A waveguide structure is coupled to the discriminating structure that couples light not discriminated by the discrim... | 05/08/2007 |
| 7215457 | Apparatus and methods for modulating refractive index An iono-refractive structure that includes one or more ion insertion layers having a real portion and an imaginary portion of the dielectric constant is provided. While both the real portion and the imaginary portion of the dielectric constant change, the change in ... | 05/08/2007 |
| 7199448 | Integrated circuit configuration comprising a sheet-like substrate An integrated circuit is formed on a non-planar substrate. The integrated circuit is formed over a plurality of layers. Chemical or physical changes in the microstructure of the substrate cause the bending of the substrate, in one or more propagation directions.... | 04/03/2007 |
| 7197220 | Optical waveguide device and fabricating method thereof Optical waveguide device 101 has waveguide 103 strip-shaped in the depth direction of the drawing and protruding from peripheral portion 102. A core (not illustrated) is disposed inside waveguide 103. Wall 106 to be cut is integrat... | 03/27/2007 |
| 7194166 | Use of waveguide grating couplers in an optical mux/demux system A group of waveguide grating couplers is disposed on a semiconductor substrate. The grating couplers are all within a spot illuminated on the substrate by a light from an optical fiber. The light propagating in the fiber is wavelength division multiplexed (WDM) and ... | 03/20/2007 |
| 7190863 | Light-pipe arrangement with reduced fresnel-reflection losses A solid light pipe arrangement with reduced Fresnel-reflection losses includes a light pipe with a solid core comprising a polymer. An optically clear substrate has first and second sides with an anti-reflective coating on at least one side. The substrate is adhered... | 03/13/2007 |
| 7145709 | Apparatus and methods for modulating refractive index An iono-refractive structure that includes one or more ion insertion layers having a real portion and an imaginary portion of the dielectric constant is provided. While both the real portion and the imaginary portion of the dielectric constant change, the change in ... | 12/05/2006 |
| 7142739 | Photoelectronic device and production method of the same A photoelectronic device capable of maintaining the degree of freedom in designing for dealing with design changes and responding to producing a variety of kinds in a small amount, and the production method are provided: wherein a light emitting element for emitting... | 11/28/2006 |
| 7106449 | Systems and methods for fiber optic devices with reduced thermal sensitivity An optical fiber device with reduced thermal sensitivity comprises a first optical fiber arm having a first composite coefficient of thermal expansion and a first length and a second optical fiber arm having a second composite coefficient of thermal expansion and a ... | 09/12/2006 |
| 7099692 | Infrared transceiver module for a wider working range An infrared transceiver module for enabling a multiple direction infrared communication includes a transfer element for enlarging the working angles of infrared emission and reception of a transmitter and receiver portion. The transfer element has a surface area lar... | 08/29/2006 |
| 7087448 | Single frequency laser This invention relates to generally to semiconductor devices, for example lasers and more particularly to single frequency lasers and is directed at overcoming problems associated with the manufacture of these devices. In particular, a laser device is provided forme... | 08/08/2006 |
| 7082238 | Self-aligning optical interconnect utilizing conformal materials An optical waveguide such as an optical fiber extends across a semi-rigid substrate or optical back plane and is made of conformal materials having indices of refraction selected to provide substantially total internal reflection of light transmitted within a core. ... | 07/25/2006 |
| 7076125 | Optical circuit element and production method therefor, array-form optical circuit element, optical circuit device using it The present invention relates to a device and a method for monitoring each of the propagated light beams that are propagated in each waveguide of an arrayed waveguide device and a method of fabricating the device. In the prior art, problems were encountered in deriv... | 07/11/2006 |
| 7068880 | Coupling device and method for manufacture thereof A coupling device for the coupling in and/or the coupling out of electromagnetic waves, into and respectively out of a transmitting or receiving element, for example, from an optical wave guide, with a reflecting surface (8). In order to provide the coupling ... | 06/27/2006 |
| 7065272 | Fiber-to-waveguide coupler An optical waveguide to fiber coupler comprises a substrate, a first waveguide and a second waveguide. The first and second waveguides are formed on the substrate and intersect at a right angle. A diffraction grating structure is formed at the intersection of the fi... | 06/20/2006 |
| 7043120 | Array waveguide grating An array waveguide grating structure includes an input MMI that receives an input optical signal and splits the optical signal into a plurality of signals, each having a defined wavelength. A plurality of input arrayed waveguide structures receive the plurality of s... | 05/09/2006 |
| 7014318 | Light coupling device and image projection apparatus using the same A light coupling device and an image projection apparatus using the same, wherein photoconductive media of the light coupling device include optical fibers that transmit light. Each light coupling device has at least two input terminals, at least two output terminal... | 03/21/2006 |
| 7009750 | Apparatus and methods for modulating refractive index An iono-refractive structure that includes one or more ion insertion layers having a real portion and an imaginary portion of the dielectric constant is provided. While both the real portion and the imaginary portion of the dielectric constant change, the change in ... | 03/07/2006 |
| 6999661 | Configuration for coupling optical signals of at least one optical data channel into and/or out of an optical waveguide A configuration for coupling optical signals of at least one optical data channel into and/or out of an optical waveguide carrying optical signals of at least two optical data channels includes at least two optical waveguide sections forming the optical waveguide, t... | 02/14/2006 |
| 6970490 | Organic light emitting devices based on the formation of an electron-hole plasma When the density of excitons in an organic single crystal (including the linear acenes, polyacenes, and thiophenes) approaches the density of molecular sites, an electron-hole plasma may form in the material altering the overall excitonic character of the system. Th... | 11/29/2005 |
| 6968109 | Optical interconnection circuit board and manufacturing method thereof In an optical connection board, a first clad layer is formed on a flat surface of a substrate and a core layer is formed on the first clad layer and is extended in a propagation direction of an optical signal. The core layer is covered with a second clad layer. A te... | 11/22/2005 |
| 6952505 | Interfacing optical transmission structures A composite for use in the aircraft construction industry includes an optical transmission device, such as an optical fiber, embedded within a carrier. The optical transmission device is provided with a high-quality optical interface surface which provides for optic... | 10/04/2005 |
| 6941046 | Dual wavelength semiconductor laser source for optical pickup The dual wavelength semiconductor laser source for an optical pickup includes: two semiconductor laser elements outputting laser beams having oscillating wavelengths different from each other; and a multiplexing waveguide, formed inside of a photonic crystal having ... | 09/06/2005 |
