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| Number | Title | Issue Date |
| 7965913 | Optical star coupler A plastic optical fiber (POF) based reflective star coupler is provided. The POF based reflective star coupler comprises a hollow cylindrical holding tube for receiving a plurality of plastic optical fibers (POF) at a front end of the holding tube and a mixing rod a... | 06/21/2011 |
| 7903913 | Optical apparatus An optical apparatus including a 360-degree star coupler with derivative structure(s) and applications to optical imaging, optical communications and optical spectroscopy. ... | 03/08/2011 |
| 7848602 | Waveguide structure and arrayed waveguide grating structure Provided are a waveguide structure and an arrayed waveguide grating structure. The arrayed waveguide grating structure includes an input star coupler, an output star coupler, and a plurality of arrayed waveguides optically connecting the input star coupler and the o... | 12/07/2010 |
| 7720336 | Code division multiplexing optical access network system The present invention provides an optical access network system that allows the transmission of packets irrespective of the packet length and which is also capable of adapting to cases where another user temporarily requires a large capacity bandwidth. This system p... | 05/18/2010 |
| 7653276 | Composite structures for storing thermal energy A composite structure for storing thermal energy. In one embodiment, an apparatus for storing thermal energy includes: a thermal storage material and a three-dimensional structure. The three-dimensional structure includes: a plurality of first truss elements defined... | 01/26/2010 |
| 7492993 | Multi-port coupler, optical amplifier, and fiber laser A multi-port coupler for coupling an pumping light source to a cladding pump fiber for optical amplification, includes a central signal fiber and a plurality of pumping fibers arranged around the central signal fiber, the central signal fiber and the plurality of pu... | 02/17/2009 |
| 7415174 | Dual optical channel monitor assembly and associated methods of manufacture and use An optical channel monitor assembly for simultaneously measuring the optical power levels of multiple series of dense wavelength division multiplexed channels or the like traveling on separate optical fibers in an optical communications system includes an arrayed wa... | 08/19/2008 |
| 7412124 | Optical module with high reflection isolation and compact size Techniques for designing optical devices with high reflection isolation are disclosed. According to one aspect of the devices, a pair of conjugate optical filters is used. To preserve the performance of the filters and minimize insertion loss, a lens has a first sid... | 08/12/2008 |
| 7406245 | Flat optical fiber light emitters Light emitters are made of one or more cladded flat optical fibers having opposite flat sides and disruptions along at least a portion of the length of the fibers to cause light entering at least one end to be emitted from at least one side. The ends of the flat opt... | 07/29/2008 |
| 7403682 | Dispersion compensation apparatus A dispersion compensation apparatus employing an arrayed-waveguide-grating (AWG) which exhibits a dispersion slope. ... | 07/22/2008 |
| 7400812 | Apparatus and methods for accommodating loops of optical fiber Disclosed is an optical apparatus (10, 110, 410, 610) for accommodating optical fiber, such as one or more loops of optical fiber. The optical apparatus (10, 110, 410, 610) can include a body (12, 112, 412, 612) comprising an inwardly facing sur... | 07/15/2008 |
| 7400800 | Arrayed waveguide grating type optical multiplexer/demultiplexer circuit An arrayed waveguide grating type optical multiplexer/demultiplexer circuit in which wavelength dispersion is reduced. An input wave guide (1), a first slab waveguide (2), an arrayed waveguide (3), a second slab waveguide (4) and an outpu... | 07/15/2008 |
| 7394953 | Configurable integrated optical combiners and decombiners System, devices and methods are described that provide an integrated optical decombiner or optical combiner having both unamplified paths and amplified paths on which power monitoring and control may be located. A preferred multiplexing/demultiplexing optical path t... | 07/01/2008 |
| 7389039 | Method of managing and playing title of medium, medium, and medium drive A method of managing and playing a title of a medium, the medium playing a deleted video title set (VTS) even after finalization of recording of a medium. The medium includes a first area recording video title sets and a second area recording search information used... | 06/17/2008 |
| 7366418 | High-speed wireless personal area network system for extending service area A high-speed WPAN (Wireless Personal Area Network) system for extending a service area includes an optical fiber serving as a medium for transmitting data; a plurality of pico-nets each including a plurality of devices and a PNC (Pico-Net Coordinator) device for man... | 04/29/2008 |
| 7349208 | Shielding box having a first wiring board and a second wiring board A shielding box includes a first wiring board and a second wiring board maintaining a distance relative to the first wiring board and facing thereto. A ventilating hole is formed in the second wiring board and having side surfaces facing each other. A pair of flat c... | 03/25/2008 |
| 7346260 | Optical waveguide and optical information processing device A core layer has a light entrance region and a light exit region, said light entrance region having a width greater than said light exit region. The light entrance region has at least a side surface shaped as a reflecting surface. The light entrance region has an en... | 03/18/2008 |
| 7342947 | Dark fiber laser array coupler A multiple-fiber, stretched, fused and cleaved coupler designed to act as an output window to a fiber laser array or fiber-coupled laser array, in which the stretch, length and/or position of the fibers is chosen facilitate the in-phase oscillation of the lasers in ... | 03/11/2008 |
| 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 |
| 7339714 | Variable blazed grating based signal processing A light processing system includes an array of optical signal processing devices. The array of processing devices are operable to receive at least some of a first signal part and to modulate the first signal part based at least in part on a control signal received f... | 03/04/2008 |
| 7334520 | Printing press and device for the inline monitoring of printing quality in sheet-fed offset printing presses A printing press for processing sheet printing materials includes at least one printing unit, a computer and a measuring device for monitoring printing quality during a printing process. The measuring device has a sensing device for measuring by color or spectrally ... | 02/26/2008 |
| 7330618 | Waveguide structure An improved waveguide structure employing blocks of waveguide core material positioned sufficiently close to a waveguide core thereby eliminating strain effects and its resulting undesirable polarization crosstalk. The improved structures are applicable to a variety... | 02/12/2008 |
| 7327915 | Integrated optical structure sensitive to the energy radiated into the cladding of a planar lightwave circuit The described integrated planar optical structure comprises a principal waveguide having a core and a cladding that define a first light path ad means sensitive to the light radiated into the cladding comprising at least one secondary waveguide having a core and a c... | 02/05/2008 |
| 7324225 | Multifunction system A multifunction system has advanced functions and high speed capability and is excellent in expandability. The multifunction system includes a controller, an IIT, an IOT, and a light distributing device. For a print job, print data outputted from the controller is c... | 01/29/2008 |
| 7324719 | Method tuning optical components integrated in a monolithic photonic integrated circuit (PIC) A method of tuning optical components integrated on a monolithic semiconductor chip having a plurality of first optical components integrated on the chip with each fabricated to approximate an emission wavelength along a given wavelength grid and together forming a ... | 01/29/2008 |
| 7324726 | Dispersion compensation apparatus A dispersion compensation apparatus providing both coarse and fine dispersion compensation employing a pair of slab waveguides, a grating interconnecting the two waveguides, a mirror disposed within the second slab waveguide and one or more thermooptic lense(s), pos... | 01/29/2008 |
| 7317851 | Optical add/drop patch cord An optical add/drop patch cord. The optical add/drop patch cord has an optical add/drop component enclosed by a casing. An input fiber is optically coupled to the optical add/drop component and permanently or detachably connected to the casing. A drop fiber is optic... | 01/08/2008 |
| 7315668 | Optical coupling with a test port An optical coupler comprises a first, second, third, and fourth port. The first port is for communicating optical signals with a processor. The second port receives a first optical signal and transmits the first optical signal to the first port. The third port recei... | 01/01/2008 |
| 7315675 | Method, and article of the method, for fabricating a flexible, hollow waveguide A flexible, hollow, waveguide is featured, that functions in the visible region. The waveguide comprises a hollow, flexible, silica-glass tube having a smooth bore, that is coated with a reflective substance on the inner bore surface. A composite of two sulfide mate... | 01/01/2008 |
| 7311450 | Color optical link using transparently jacketed plastic optical fiber and method for achieving the same Disclosed is a color optical link using a transparently jacketed plastic optical fiber that optically transmits data and uses light, scattered and emitted to the outside, for the purpose of illumination, and a method for achieving the color optical link. The color o... | 12/25/2007 |
| 7305186 | Method and apparatus for scheduling communication using a star switching fabric In one embodiment, a scheduler for use with a star switching fabric includes a scheduling star switching fabric operable to receive a plurality of packets each associated with one of a plurality of wavelengths and a plurality of selecting elements associated with th... | 12/04/2007 |
| 7292747 | Strictly non-blocking switch core having optimized switching architecture based on reciprocity conditions A switch core is set forth that comprises a plurality of duplex switches that are interconnected with a interconnection fabric to implement, for example, strictly non-blocking operation of the switch core for reciprocal traffic. In one embodiment, an N-way reciproca... | 11/06/2007 |
| 7292746 | All-optical flip-flop The present invention provides a set-reset flip-flop operating in an all-optical manner. In this invention, a set pulse is inputted from the setting port. In doing so, only oscillation in set mode is generated at the multi-mode interference portion in a waveguide. A... | 11/06/2007 |
| 7289698 | High bitrate transport over multimode fibers A multimode fiber system includes a transmitter for transmitting an optical signal and a receiver that receives the optical signal. At least one mode filter is coupled between the receiver and the transmitter and passes only a specific set of fiber modes from the tr... | 10/30/2007 |
| 7287915 | Optical device An optical device comprises an optical head and a package containing the optical head and having pins led outside. A V-groove is formed in one side of a glass substrate. On the other side, the glass substrate is secured to the base of the package. A PD array and the... | 10/30/2007 |
| 7286733 | Light guide body A light guide body includes: at least a front end tapered portion including one end connectable to an optical fiber and the other end, the one end being thinner than the other end; a plurality of second taper portions, each including one end connectable to an optica... | 10/23/2007 |
| 7283709 | Integrated microelectromechanical wavelength selective switch and method of making same A fully integrated microelectromechanical (MEMS) lxK wavelength selective switch (WSS) includes an array of N solid-immersion micromirrors (SIMs) and a K+1 dispersion waveguide arrays that are integrally fabricated together. In one embodiment, the WSS is fabricated ... | 10/16/2007 |
| 7283694 | Transmitter photonic integrated circuits (TxPIC) and optical transport networks employing TxPICs A photonic integrated circuit (PIC) chip comprising an array of modulated sources, each providing a modulated signal output at a channel wavelength different from the channel wavelength of other modulated sources and a wavelength selective combiner having an input o... | 10/16/2007 |
| 7280722 | Temperature compensated optical multiplexer An optical multiplexer that adjusts the wavelength response and compensates for temperature effects by using rotatable mirror. The wavelength response of the device is adjusted by aligning the mirror at a correct angle with respect to the surface terminating the opt... | 10/09/2007 |
| 7274717 | Dark fiber laser array coupler A multiple-fiber, stretched, fused and cleaved coupler designed to act as an output window to a fiber laser array or fiber-coupled laser array, in which the stretch, length and/or position of the fibers is chosen facilitate the in-phase oscillation of the lasers in ... | 09/25/2007 |
