Did You Know...
...that while attempting to develop a super strong glue, 3M employee Spencer Silver accidentally developed a glue that was so weak it would barely hold two pieces of paper together? However, his colleague Art Fry needed the glue. Fry sang with his church choir and marked the pages of his hymnal with small scraps of paper that often fell out. He used Silver's glue to hold the papers in place. Today we call this invention Post-it Notes.
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| Number | Title | Issue Date |
| 8175432 | 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 r... | 05/08/2012 |
| 7945132 | Laser and photodetector coupled by planar waveguides An optical apparatus comprises: a waveguide substrate; three planar optical waveguides formed on the substrate, each comprising a transmission core and cladding; a laser positioned to launch its optical output to propagate along the first waveguide; a photodetector ... | 05/17/2011 |
| 7916988 | Optical splitter assembly Optical splitter assemblies are provided. An assembly may include a housing, one or more fanout elements, an optical splitter element, an input fiber and a plurality of output fibers. The input fiber extends from an input opening of the housing to the optical splitt... | 03/29/2011 |
| 7813604 | Laser and photodetector coupled by planar waveguides An optical apparatus comprises: a waveguide substrate; three planar optical waveguides formed on the substrate, each comprising a transmission core and cladding; a laser positioned to launch its optical output to propagate along the first waveguide; a photodetector ... | 10/12/2010 |
| 7773843 | Bi-directional tap assemblies for two-way fiber topologies Bi-directional tap assemblies for two-way fiber topologies are disclosed. The assembly includes a fiber-optic cable having a cable optical fiber adapted to carry bi-directional optical signals and that is preterminated at a mid-span location to form at least one fir... | 08/10/2010 |
| 7689078 | Optical device An optical device including (a) a substrate having an electro-optic effect; (b) a modulating optical waveguide formed on a surface layer portion of said substrate and forming an interference optical modulator for modulating input light; (c) an output optical wavegui... | 03/30/2010 |
| 7643712 | Optical module and optical switching device The invention relates to an optical device which can increase the spread of a beam diameter in the depthwise direction by a simple configuration in comparison with that by prior art devices. The optical device includes a substrate, an optical path formed on the subs... | 01/05/2010 |
| 7627214 | Adjustable optical tap An adjustable optical tap for adjusting input power, output power and drop power in a communications network includes an enclosure having a plurality of connector assemblies being configured for interconnecting input and output cables; a cover attachable to the encl... | 12/01/2009 |
| 7627215 | Optical intermediary component and optical daughter card module An optical intermediary component is suitable for guiding a light from an output optical path into an input optical path. The optical intermediary component includes a light guiding portion extending along a light axis. The light guiding portion has a light incident... | 12/01/2009 |
| 7616852 | Optical substrate, optical waveguide, and optical waveguide substrate An optical substrate includes: a submount; a planar optical element which is mounted on the submount; a pair of positioning members which are disposed at an interval across the planar optical element on the submount; an optical waveguide in which a core and a clad a... | 11/10/2009 |
| 7551820 | Optical device An optical device including (a) a substrate having an electro-optic effect; (b) an optical waveguide formed on a surface layer portion of said substrate and including an optical waveguide for performing optical modulation for light inputted to said substrate and an ... | 06/23/2009 |
| 7526161 | Optical device An optical device is disclosed which suppresses a bias shift which is a deviation of a phase relationship between output signal light and monitoring light. The optical device includes a substrate having an electro-optic effect, a modulating optical waveguide formed ... | 04/28/2009 |
| 7492994 | Integrated fiber tap monitor with variable optical attenuator Integrated fiber tap monitors with variable optical attenuators where light from an input fiber is reflected to the output fiber and a tap is generated from measuring transmission at the reflection. ... | 02/17/2009 |
| 7486860 | Multi-dwelling unit optical fiber splitting unit A multiple dwelling unit (MDU) optical fiber splitting unit (FBU). One or more fiber strands enters the FBU at the MDU. Each strand may be connected to a variable attenuator. Each strand is subject to a one to four split. Each of the four split fibers is connected t... | 02/03/2009 |
| 7483606 | Planar power splitter The present invention provides a splitter. The splitter includes a substrate and a layer formed on the substrate. The layer is patterned such that a signal applied to at least one input port is provided to a plurality of output ports. The relative power of the signa... | 01/27/2009 |
| 7437042 | Fiber coating processing and slitting for non-confined light leakage An optical fiber and methods of processing and manufacturing an optical fiber comprising a core, a cladding and a coating covering a segment of the cladding proximate to an end of the optical fiber are presented where patterned apertures are provided in the coating ... | 10/14/2008 |
| 7433562 | Method of dividing a guided electromagnetic signal into two half-power signals using photonic crystals The invention relates to a method of dividing the power of an input electromagnetic signal into two equal-power signals with a relative phase difference of 180° between them and an equal propagation delay. The inventive method makes use of a photonic crystal couple... | 10/07/2008 |
| 7428357 | Integrated optical splitter system A system and method directed to an integrated fiber optic splitter assembly having at least two fused splitters disposed in a common substrate. An integrated optical splitter assembly includes a plurality of input fibers, a plurality of output fibers, and a pluralit... | 09/23/2008 |
| 7421161 | Optical power monitor and its manufacturing method An optical power monitor comprising a pig-tail fiber and a GRIN lens opposed to each other with a spacing and each having an end face (angled face) angled with respect to the axis, being low on reflection loss and able to be easily assembled. The pig-tail fiber and ... | 09/02/2008 |
| 7421167 | Optical power distribution devices This invention relates to optical splitters, particularly to optical splitters for use in optical touch screens. The present invention provides an optical splitter for distributing light substantially equally from a multimode input waveguide to an array of output wa... | 09/02/2008 |
| 7421173 | Subwavelength-diameter silica wires for low-loss optical waveguiding The present invention provides nanometer-sized diameter silica fibers that exhibit high diameter uniformity and surface smoothness. The silica fibers can have diameters in a range of a about 20 nm to about 1000 nm. An exemplary method according to one embodiment of ... | 09/02/2008 |
| 7412137 | Optical power monitor An optical power monitor capable of being reduced in size even when designed as a multi-channel monitor, and having a reduced light transmission loss is disclosed. The optical power monitor has two optical fibers provided on the light transmission upstream and downs... | 08/12/2008 |
| 7400788 | Linearized optical modulator having a plurality of coupling functions Invention discloses an apparatus that provides linear optical modulation of light carrier signals by an electrical modulation signal. Linearized modulation is achieved through the selection of a spacing profile between two optical transmission waveguides. The spacin... | 07/15/2008 |
| 7400808 | Optical fiber, light amplifier, and light source A coated optical fiber capable of transmitting high-power light, which is an optical fiber having an outer surface coated with a coating material, is characterized in that the coating material is made of a transparent UV curable resin so as to prevent the coating ma... | 07/15/2008 |
| 7386198 | Optical waveguide device The present invention has an object to provide an optical device capable of leading out a light propagated through an optical waveguide to a desired substrate side face while maintaining the sufficient power of the light, within a range of limited substrate size. To... | 06/10/2008 |
| 7382958 | Photonic crystal wave guide optical spectrometer An optical instrument for splitting optical spectrum, comprising a series of hollow core optical wave guides (12, 22, and so on) connected by optical couplers (16, 26, and so on) transporting broad band incident optical wave from one stage to another, ... | 06/03/2008 |
| 7382947 | Remote monitoring of undersea cable systems A method and system are provided for remotely monitoring undersea cable systems. Upon receiving a fault alert message, an optical cross-connect is set up between the subject cable station and a testing platform. Testing is conducted and a determination is made wheth... | 06/03/2008 |
| 7373045 | Method and apparatus for processing optical signals with supergratings An optical component including at least one optical supergrating is provided. The optical supergrating includes a quantized refractive index profile adapted to exhibit a finite plurality of refractive indexes; which in turn are adapted to generate a reflectance spec... | 05/13/2008 |
| 7373030 | Planar optical circuit The invention relates to a planar optical circuit having a waveguide structure and at least one monolithic or hybrid integrated optical component. A mechanism for influencing the propagation of scattered light in the planar optical circuit in a targeted manner is em... | 05/13/2008 |
| 7371019 | Method and apparatus for sensing light Disclosed is an optical apparatus including an optical fiber having a wavelength of operation, the optical fiber comprising a first length of the optical fiber joined to a second length of the optical fiber with a splice such that the first and second lengths are in... | 05/13/2008 |
| 7370134 | System and method for memory hub-based expansion bus A system memory includes a memory hub controller, a memory module accessible by the memory hub controller, and an expansion module having a processor circuit coupled to the memory module and also having access to the memory module. The memory hub controller is coupl... | 05/06/2008 |
| 7366364 | Optical multiplexer An optical multiplexer includes a substrate into which are integrated a polarization rotator and a polarization coupler. The polarization coupler and the polarization rotator are in optical communication with each other. ... | 04/29/2008 |
| 7366864 | Memory hub architecture having programmable lane widths A processor-based system includes a processor coupled to a system controller through a processor bus. The system controller is used to couple at least one input device, at least one output device, and at least one data storage device to the processor. Also coupled t... | 04/29/2008 |
| 7366369 | Transmission of measured values in high-voltage supply units for electrofilters Disclosed is a high-voltage supply unit for electofilters. The unit includes high-voltage devices which are arranged close to the electrofilter and by which the electrofilter is supplied with high voltage, measuring heads which are assigned to the high-voltage devic... | 04/29/2008 |
| 7359581 | Optical waveguide modulator with output light monitor An optical waveguide monitor equipped with an output light monitor having a decreased restriction in the dimensions and form thereof, a high reliability and a low production cost includes an optical waveguide element (having a plurality of surface waveguide portions... | 04/15/2008 |
| 7356212 | Optical waveguide device and method of adjusting a transmission loss thereof An optical waveguide device includes a plurality of optical waveguides propagating therethrough a signal beam, and a plurality of optical sub-waveguides connected to the plurality of optical waveguides respectively, applying an excessive loss to the signal beam by b... | 04/08/2008 |
| 7356224 | Method and apparatus for detecting multiple optical wave lengths Optical gratings that perform a number of functions at various wavelengths are formed by various methods that preserve spectral information within a wavelength band, the functions including: coupling radiation from one waveguide to another, controllable gratings tha... | 04/08/2008 |
| 7352949 | Fiber used in wideband amplified spontaneous emission light source and the method of making the same The present invention relates to a fiber having a core of crystal fiber doped with chromium and a glass cladding. The fiber has a gain bandwidth of more than 300 nm including 1.3 mm to 1.6 mm in optical communication, and can be used as light source, optical amplifi... | 04/01/2008 |
| 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 |
| 7349596 | System and method to remove light from cladding A system to remove cladding light from an optical fiber that includes a core and a cladding that surrounds the core. A volume of an index-matching material contacts an exterior surface of the cladding along a contact length of the optical fiber. The index-matching m... | 03/25/2008 |
