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| Number | Title | Issue Date |
| 8055106 | Optical communication device including a digital optical switch An optical communication device provided with digital optical switching includes a substrate; and at least one optical switch including a first optical switch composed of a main core disposed on the substrate and extending along a first direction, the main core incl... | 11/08/2011 |
| 7778506 | Multi-port monolithic RF MEMS switches and switch matrices A multi-port RF MEMS switch, a switch matrix having several multi-port RF MEMS switches and an interconnect network have a monolithic structure with clamped-clamped beams, cantilever beams or thermally operated actuators. A method of fabricating a monolithic switch ... | 08/17/2010 |
| 7760972 | Multiport switch for optical performance monitor The present invention provides a switch assembly for use with a single-port OPM to realize a multi-port OPM having improved reliability. In one embodiment, an N×1 optical switch assembly, wherein N is an integer greater than one, is provided. The optical switch ass... | 07/20/2010 |
| 7742664 | Liquid crystal waveguide having refractive shapes for dynamically controlling light Liquid crystal waveguides for dynamically controlling the refraction of light. Generally, liquid crystal materials may be disposed within a waveguide in a cladding proximate or adjacent to a core layer of the waveguide. In one example, portions of the liquid crystal... | 06/22/2010 |
| 7724993 | MEMS switches with deforming membranes MEMS switches are formed with membranes or layers that are deformable upon the application of a voltage. In some embodiments, the application of a voltage opens switch contacts. ... | 05/25/2010 |
| 7646947 | Optical switch An optical switch including an alignment head, a first fiber, a second fiber, a third fiber, a wedge, and a displacing means is provided. The alignment head has a base and a cover. The base has a first V-groove, a second V-groove, and a trench linked to the first an... | 01/12/2010 |
| 7620275 | Integrated polarization splitter/combiner Provided is an apparatus and method for use thereof. The apparatus, in one embodiment, includes a 1×2 coupler in communication with a waveguide. The 1×2 coupler, in this embodiment, is configured to separate an input finite bandwidth optical signal provided from t... | 11/17/2009 |
| 7561767 | Liquid crystal waveguide having refractive shapes for dynamically controlling light Liquid crystal waveguides for dynamically controlling the refraction of light. Generally, liquid crystal materials may be disposed within a waveguide in a cladding proximate or adjacent to a core layer of the waveguide. In one example, portions of the liquid crystal... | 07/14/2009 |
| 7444042 | Optical switch An optical switch is implemented with one or more cantilevered optical channels, which are formed in a flexible waveguide structure, and an actuator which is connected to the cantilevered optical channels, to position the cantilevered optical channels to direct an o... | 10/28/2008 |
| 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 |
| 7428362 | Photonic crystal surface states A photonic crystal may be configured to support a surface state for logic. ... | 09/23/2008 |
| 7403690 | Photonic crystal surface states A photonic crystal may be configured to support a surface state for logic. ... | 07/22/2008 |
| 7382948 | Optical switch An optical switch comprises a prism for changing the direction of travel of incident light to be directed toward a further optical fiber; a switching mirror placed to be insertable and removable into and from between a lens block and the prism; and an actuator for d... | 06/03/2008 |
| 7379635 | Optical switch with three optical ports on one side The end parts of three optical waveguide parts are supported, mutually in parallel, on a substrate, the end part of the center optical waveguide part being one input port and the end parts of other two optical waveguide parts being a first and a second output port, | 05/27/2008 |
| 7369334 | Optical device with alignment compensation An optical device is provided which includes a plurality of optical modules and an alignment compensation module. Each optical module includes an optical component fixedly coupled to a relative reference mount. The relative reference mount is configured to attach to... | 05/06/2008 |
| 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 |
| 7336865 | Optical switch An optical switch for switching the connection of one or more movable optical fibers to one or more stationary optical fibers, comprising a movable soft magnetic block connected to an end portion of each movable optical fiber, a stationary soft magnetic block connec... | 02/26/2008 |
| 7327917 | Directional light beam generators Directional light beam generators are implemented in waveguides with tilted core structures. The waveguides have cores, cladding and jacket layers. A directional light beam with small divergent beam angle is generated after propagating through the waveguides. Diverg... | 02/05/2008 |
| 7324731 | Systems and methods for distributing signals communicated on fiber optic transmission lines Methods and systems for distributing signals communicated on fiber optic transmission lines are disclosed. In one embodiment, a fiber optic communications system includes a transmitter operable to transmit an optical signal, and at least one receiver operable to rec... | 01/29/2008 |
| 7319820 | Method of manufacturing optical communication system A position of a first module (12a) with respect to an optical fiber (11) is determined in accordance with a receiving efficiency at the first module (12a) with respect to light emitted from the optical fiber (11). Power of l... | 01/15/2008 |
| 7314316 | Self-aligning optical connector and method for using the same A self-aligning connector for connecting fiber-optic cables including a first component connected to a first cable of the cables during use of the connector and a second component connected to the first component and a second cable of the cables during use of the co... | 01/01/2008 |
| 7313295 | Method and apparatus for variable optical attenuation for an optical switch A controller in an optical switch providing optical coupling of an optical signal between a source port and a target port employs, in at least one axis, gradient control using a feedback loop that compensates for alignment error between a source port and a target po... | 12/25/2007 |
| 7313298 | Tunable filter A method for implementing a truly hitless tunable filter for use in adding and/or dropping channels in a wavelength division multiplexed (WDM) network is disclosed. An exemplary method for filtering an optical signal may include providing a composite optical signal ... | 12/25/2007 |
| 7310460 | Optical device A light controlling means includes a shutter member and an actuator. The shutter member is disposed in a slit and has a function to shut off signal light propagated in the light path of an optical fiber array. The actuator is constructed to drive and move the shutte... | 12/18/2007 |
| 7295748 | Variable optical attenuator with wavelength dependent loss compensation The invention relates to compensating for the wavelength dependent loss (WDL) in a variable optical attenuator (VOA) system by using a chromatic dispersion wedge, which is inserted between the mirror and the lens. Different wavelength components, e.g. shorter blue a... | 11/13/2007 |
| 7292750 | Signal processing system A signal processing system (10) has a plurality of optical fibers (40, 42, 43) with their one ends (40) mounted in an array board (41) to receive electromagnetic radiation. A coupler (54) interconnects the other ends of the optical... | 11/06/2007 |
| 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 |
| 7289696 | Optical switch device An optical switch device (1) of such a type that the COUPLED state of light guides is switched by moving a light reflective member capable of securely preventing a movable body with the light reflective member from being displaced and allowing a reduction in ... | 10/30/2007 |
| 7286730 | Optical switch having angle tuning elements and multiple-fiber collimators An optical switch with a compact form factor includes a multiple-fiber collimator and an angle tuning element for deflecting an optical beam from an input fiber into one of at least two output fibers. The angle tuning element may be provided between a pair of coaxia... | 10/23/2007 |
| 7282775 | MEMS scanning mirror with trenched surface and tapered comb teeth for reducing intertia and deformation A micro-electro-mechanical system (MEMS) device includes a mirror having a top surface with trenches, a beam connected to the mirror, rotational comb teeth connected to the beam, and one or more springs connecting the beam to a bonding pad. The mirror can have a bot... | 10/16/2007 |
| 7283745 | Methods and apparatus for constructing switch arrays for routing of optical signals so as to minimize power dissipation Techniques and systems for design of optical switch arrays so as to minimize power requirements are described. A design system includes a computer system hosting a design program. The design program receives parameters for the switch array, including a number N of o... | 10/16/2007 |
| 7280734 | Expanding single mode fiber mode field for high power applications by fusion with multimode fiber Apparatus and methodology for the low coupling of optical fibers in high power applications. An end of a single mode optical fiber, or a polarization maintaining fiber, is cut and spliced to a relatively short segment of an index matched multi-mode fiber or an optic... | 10/09/2007 |
| 7274428 | System and method for processing images to emulate film tonescale and color A method for converting a sequence of scan-only film captured images into a sequence of modified images that provide the appearance of images captured by a photographic film reproduction system; the photographic film reproduction system being includes photographic m... | 09/25/2007 |
| 7274455 | Optical detection apparatus for multi-channel multi-color measurement and multi-channel sample analyzer employing the same Provided are an optical detection apparatus which can measure multi-channel samples at high speed and various wavelengths using an optical detector and a multi-channel sample analyzer employing the same. The optical detection apparatus includes an optical detector; ... | 09/25/2007 |
| 7269317 | Optical assemblies for free-space optical propagation between waveguide(s) and/or fiber(s) An optical apparatus comprises a substrate, first and second transmission optical elements on the substrate, and an optical component (such as an isolator) and focusing optical element(s) on the substrate between the transmission elements. Transmission elements may ... | 09/11/2007 |
| 7263252 | Optical switch and method of controlling optical switch An optical switch of the present invention includes at least one input optical fiber, output optical fibers, at least one movable mirror for directing a light beam from the input optical fiber selectively to one of the output optical fibers, and at least one shutter... | 08/28/2007 |
| 7263254 | Optical switch and control method therefor The present invention provides an optical switch for restricting a reduction in an optical coupling efficiency to an output optical path, which comprises a first spectral unit, a second spectral unit for further spectrally diffracting a plurality of wavelength compo... | 08/28/2007 |
| 7263250 | Optical switch using polarization beam splitters A polarization based optical switch capable of redirecting light signals to a plurality of different output locations. The optical switch utilizes polarization beam splitters to separate each optical channel into multiple polarization portions. Reflection members ar... | 08/28/2007 |
| 7262754 | Electronic device with liquid crystal display An electronic device, such as personal computer, incorporating a liquid crystal panel which uses LEDs as an illuminating light source for a liquid crystal panel to reduce power consumption and size of the electronic device. When 3-color LED lamps 13R, 13 | 08/28/2007 |
| 7260287 | Nano-electromechanical high-index contrast A nano-electromechanical optical switch includes an input optical waveguide that is provided with an optical signal. At least two output optical waveguides are coupled to the input optical waveguide. The deflection of the input optical waveguide aligns with one of e... | 08/21/2007 |
