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Optical Waveguides > With Optical Coupler > Switch (i.e., Switching From One Terminal To Another, Not Modulation) Switch (i.e., Switching From One Terminal To Another, Not Modulation)Switch (i.e., Switching From One Terminal To Another, Not Modulation) patent applications listed are from June 2005 to current and include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.09/20/07 - 20070217735 - 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 coaxially-aligned collimators, one of which ... 08/16/07 - 20070189662 - All-optical switch In a Mach-Zehnder optical circuit that has a 3 dB coupler 10 whereby an NRZ light signal 53 inputted to an input port 7 is distributed to both arms of the circuit, a 3 dB coupler 3 whereby CW light 52 inputted to an input port 8 is distributed to ... 07/05/07 - 20070154137 - Optical module and optical switch An optical module controls its output characteristics electrically and an optical switch constitutes the optical module. An optical waveguide circuit (PLC) and an electronic circuit (IC) for driving the PLC are mounted on the same substrate. The IC is composed of a bare chip to be molded afterward. Wiring of ... 07/05/07 - 20070154136 - Image null-balance system with multisector-cell direction sensing A light beam is detected/localized by multisector detector—quad-cell, or 5+ sectors handling plural beams. Preferences: Beams focus to diffraction limit on the detector, which reveals origin direction by null-balance—shifting spots to a central sector junction, and measuring shifts to reach there. One or more MEMS reflectors, and control system with ... 06/28/07 - 20070147730 - Optical switch and method for treatment of tissue An optical switch incorporated in a photomedical system, and a method of treating tissue using the optical switch for creating pulsed light. A light source generates an optical beam. An aperture element includes a light-transmitting portion and a light-blocking portion. An optical element such as a mirror, prism or lens ... 05/31/07 - 20070122074 - Mems switch A MEMS (micro electro mechanical system) switch, which includes a substrate; a fixed electrode formed on an upper side of the substrate; a signal line formed on both sides of the fixed electrode; a contact member formed on an upper side of the signal line at a distance from said ... 05/24/07 - 20070116404 - Method and apparatus for controlling optical switch A response-time storing unit stores a response time from start of output of driving force required for switching paths until stabilization of the driving force, for each of the paths to be connected. A driving-force correcting unit corrects output level of the driving force, starting correction of the output level ... 05/10/07 - 20070104418 - Wavelength selective optical switch A wavelength selective optical switch particularly usable as a programmable N×M optical switch in a multi-wavelength communication system. The switch uses a grating that separates multi-channel optical signals into a plurality of optical channels, and combines a plurality of optical channels into multi-channel optical signals. Programmable mirrors switch each optical ... 05/10/07 - 20070104417 - Optically controlled optical-path-switching apparatus, and method of switching optical paths An optical signal optical path switching method comprising steps of using a thermal lens based on a distribution of refractive index produced reversibly caused by temperature increase generated in an area of the light-absorbing layer film of thermal lens forming devices 1, 2 and 3, that has absorbed control light ... 04/26/07 - 20070092181 - Optical switch, optical modulator and wavelength variable filter An optical switch, an optical modulator, and a wavelength variable filter each have a simple configuration, which requires only a low driving voltage, which is independent of polarization, and which can operate at high speed. An optical switch includes a 3-dB coupler placed on an output, a 3-dB coupler placed ... 04/26/07 - 20070092180 - Mems switch An MEMS switch includes a substrate 46, a conductive beam 42 formed on a surface of the substrate, and three-layer structure beams B1 and B2 formed on the surface of the substrate and disposed to be opposed to the conductive beam. The MEMS switch is characterized in that: each of ... 04/12/07 - 20070081761 - Integrated microelectromechanical wavelength selective switch and method of making same A fully integrated microelectromechanical (MEMS) 1×K 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 in Silicon. In another embodiment, the N actuators of the SIMs are etched in ... 04/05/07 - 20070077002 - Apparatus for directing an optical signal from an input fiber to an output fiber within a high index host The invention includes an apparatus for receiving an optical signal from an optical input means and directing the optical signal to one of a plurality of optical outputs means. The apparatus includes a solid signal propagating material having a refractive index greater than the refractive index of air. The solid ... 03/15/07 - 20070058899 - Mems-based alignment of optical components A MEMS device that enables an optical subsystem (e.g., an optical switch) having an optical component optically coupled to the MEMS device via free space to achieve optical alignment between the optical component and the MEMS device without moving the optical component with respect to the stationary part of the ... 02/15/07 - 20070036480 - Compact wavelength-selective optical crossconnect A system and method of optically routing wavelength channels from within a plurality of optical inputs to any of a plurality of optical outputs. An optical wavelength-selective cross connect (WSXC) switch is described with a first stage of wavelength division multiplexing (WDM) routers which support an optical input and a ... 01/25/07 - 20070019905 - Optical switch An optical switch, comprising an optical resonator, a first input optical waveguide optically coupled to the optical resonator for guiding a first optical signal to the optical resonator; a second input optical waveguide optically coupled to the optical resonator for guiding a second optical signal to the optical resonator; and ... 01/25/07 - 20070019904 - Method for operating a switched optical network A method for operating a switched optical network, in particular an automatically switched optical network (=ASON), wherein the method allocates a transparent physical path out of a multitude of candidate paths to an optical data signal, is characterized in that the method takes into account the polarisation mode dispersion (=PMD) ... 01/18/07 - 20070014511 - Optical switching using light bullets A method and apparatus for optical switching using light bullets is presented. In one embodiment, the invention is a switch. The switch is a multi-channel, optical switch to use light bullets as optical pulses. The switch includes a waveguide of a first material. The switch also includes a plurality of ... 01/18/07 - 20070014510 - Optical network equipment and optical network A position in which an optical signal characteristic is compensated in an optical network can be chosen. An optical network equipment measures an optical signal characteristic for each wavelength, and notifies an optical network equipment on a communication path of an optical signal characteristic index and control necessity determination threshold. ... 01/11/07 - 20070009201 - Electric field programmable films and memory devices based thereon An electric field programmable film composition is disclosed containing a binder and (a) an electron donor and an electron acceptor, wherein at least one of: (i) the concentration of the electron donor is <0.05 wt % and (ii) the concentration of the electron acceptor is <0.05 wtO/o or (b) an ... 12/28/06 - 20060291772 - Analytical system and method for analyzing nonlinear optical signals The invention relates to a method for the ultrasensitive simultaneous measurement of nonlinear optical emission signals in one or two local dimensions. Said method comprises the following steps: the excitation light is irradiated in a power-modulated or pulse-modulated form from at least one light source into an interactive volume or ... 12/21/06 - 20060285790 - Optical bypass method and architecture This invention pertains to optical fiber transmission networks, and is particularly relevant to transmission of high volume of data and voice traffic among different locations. In particular, the improvement teaches improvements to an optical transport system to allow for efficient and flexible network evolution. ... 11/30/06 - 20060269187 - 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 reciprocal switch is implemented. The N-way reciprocal switch comprises a plurality ... 11/16/06 - 20060257069 - Heat transfer structures A switching element includes a bubble chamber, a heater and a heat conductor. The bubble chamber holds fluid. The bubble chamber includes a trench within a planar light circuit and includes a trench within an integrated circuit attached to the planar light circuit. The heater is located under the trench ... 11/02/06 - 20060245683 - Switching device and method A rocker styled switch includes an arm member moveable into and out of a beam path transmitting light between an optical transmitter and an optical receiver for blocking and allowing light to reach the receiver for providing an actuating signal. An end of the arm member includes a cam follower ... 10/26/06 - 20060239607 - Wavelength selector switch A wavelength selector switch includes first and second refracting plates, an optical splitter, first and second optical systems, an optical coupler polarization controller, and second refracting plate. The first refracting plate refracts the second wavelength-multiplexed light beam. The optical splitter spatially splits into a plurality of wavelength components light beams. ... 10/12/06 - 20060228071 - Reduction of mems mirror edge diffraction in a wavelength selective switch using servo-based multi-axes rotation Effects of diffraction of a spectral beam from an edge of the micromirrors are reduced in order to optimize the passband in a wavelength selective switch. The effects of diffraction on the pass band may be reduced by appropriate modification of the edges of the micromirrors, by modification of the ... 10/12/06 - 20060228070 - Optical add-drop multiplexer architecture with reduced effect of mirror edge diffraction Effects of diffraction of a spectral beam from an edge of the micromirrors are reduced in order to optimize the passband in a wavelength selective switch. The effects of diffraction on the pass band may be reduced by appropriate modification of the edges of the micromirrors, by modification of the ... 10/12/06 - 20060228069 - Actuator and systems and methods An actuator system that includes two beams that are formed into a diamond pattern. A crossbar is positioned at a midsection to connect the two beams. When power is applied to the two beams, the diamond pattern is driven vertically. An actuator system may also include a substrate and a ... 10/05/06 - 20060222288 - Visual display with electro-optical individual pixel addressing architecture A display device and method of operating the display device. The display device comprising a support substrate, a plurality of light emitting light emitting resonators placed in a matrix on the support substrate forming a plurality of rows and columns of the light emitting resonators, a plurality of light waveguides ... 10/05/06 - 20060222287 - Actuator and latching systems and methods An optical switch for routing signals includes a latch receiver connected to a waveguide that routes the signals and an actuator that includes an upper plate, a lower plate and a latch connected to the lower plate, the lower plate of the actuator moving vertically when power is applied to ... 09/14/06 - 20060204169 - All-optical controllable photonic switch A photonic switch matrix is disclosed. The photonic switch matrix includes a first pair of power splitters, each power splitter including one input and two output ports and a second pair of power splitters, each power splitter including two input ports and one output port. The photonic switch matrix further ... 09/07/06 - 20060198574 - Optical switch The present invention relates to an optical switch. The optical switch includes at least two binary control elements movable between a first and second position. The binary control elements include an at least one angle tuning element for adjusting the pathway of an optical signal. With a binary control element ... 08/24/06 - 20060188194 - 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 port in an optical switch. ... 08/17/06 - 20060182387 - Wavelength selective optical switch A wavelength selective optical switch particularly usable as a programmable N×M optical switch in a multi-wavelength communication system. The switch uses a grating that separates multi-channel optical signals into a plurality of optical channels, and combines a plurality of optical channels into multi-channel optical signals. Programmable mirrors switch each optical ... 07/27/06 - 20060165348 - Optical switch An optical switch changes over transmission paths of an optical signal by a refractive index change. The optical switch has an optical waveguide layer having an optical waveguide whose output path of an optical signal branches into two, and reflection diffusing ditches which are provided in a portion outside the ... 07/27/06 - 20060165347 - 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 connected to each stationary optical fiber and fixed ... 07/20/06 - 20060159388 - Optical path switch apparatus of optical lan system In an optical LAN system, an optical connector is provided between the input and output optical fiber cables and each of the node devices. The optical connector includes a movable body (a switch body) having a prism. The movable body is switched selectively between a first position (a first state) ... 06/29/06 - 20060140535 - Optical switch In order to provide a low-loss optical switch that is low in power consumption by providing the same as a self-holding type, and high speed and highly practicable, an optical switch of the present invention is composed of a quartz substrate (101), first and second input waveguides (102a and 102b), ... 06/22/06 - 20060133721 - Circuit, system and method for optical switch status monitoring A system and methods for monitoring in a current switching configuration the status of an optical switch that includes at least one electrically addressable element operative to provide the switching action, the monitoring capable of predicting a functional ability of the switch to assume another switching configuration. The system comprises ... 06/08/06 - 20060120661 - Thermally induced pressure operated optical switch and display device using the same A thermally induced pressure operated optical switch (3) includes a prism (31), and a substrate (32) disposed below the prism. The substrate defines a plurality of switch elements (35). Each switch element includes a first chamber (351), a second chamber (352) containing matching liquid (36) having a reflective index substantially ... 05/25/06 - 20060110101 - Microfabrication process for control of waveguide gap size A method for forming a gap (16) of a width (d) which meets selected tolerance limits includes forming sidewalls (80, 82) in a microstructure, the sidewalls defining a gap (16) therebetween. The gap has a width defined between the sidewalls. The width of the gap between the sidewalls is determined. ... 05/18/06 - 20060104567 - Switchable coupling A switchable coupler (10) has a first waveguide (15) defining an inlet port (31) for a first unpolarised light input (A) and a first outlet port (32), and also a second waveguide (16) defining an inlet port (41) for a second unpolarised light input (13) and a second outlet port ... 05/11/06 - 20060098916 - Optical waveguide switch and method of manufacturing the same Optical waveguides facing each other with a layer-to-layer spacing kept not to permit the occurrence of a proximity effect perturbation within a gap section formed in an intermediate layer are configured so that at least one of the optical waveguides is moved toward the other facing the one optical waveguide ... 04/13/06 - 20060078251 - Systems and methods for optical switching to colourless ports and coloured ports A wavelength selective switch is provided with a multiplexer such that both colourless (wavelength non-specific) and coloured (wavelength specific) ports are available. A waveguide device is employed with dispersive elements having different characteristics to realize the colourless and coloured ports within one waveguide device. ... 04/13/06 - 20060078250 - Optical switch An optical switch has an input port, output ports, optical waveguides whose output path of an optical signal branch into two. A first stage optical switch section is provided in a branching portion of the optical waveguide, which switches a propagating path of an optical signal to a path leading ... 04/13/06 - 20060078249 - Optical transistor with sub-wavelength aperture An optical switch has a conductor and one or more sub-wavelength apertures. The switch is activated and periodic perturbations are dynamically formed in proximity to the conductor. Photons are directed toward and impinge upon the switch, and a greater amount of light propagates through the sub-wavelength apertures in the activated ... 03/30/06 - 20060067611 - Wavelength selective reconfigurable optical cross-connect An optical coupling device including: at least a first input port for delivering an optical input signal beam that includes a plurality of wavelength channels; at least a first optical output port for receiving an optical output signal beam; a wavelength dispersion element for spatially separating the plurality of wavelength ... 03/30/06 - 20060067610 - Ultra-fast all-optical switch array An all-optical switching array for switching a direction of optical signals is presented. The all-optical switching array includes a first substrate. Furthermore, the all-optical switching array includes a plurality of optical switches disposed on the first substrate, wherein each of the plurality of optical switches comprises a first state and ... 03/16/06 - 20060056761 - Optical switch This application discloses an optical switch that uses a plasma field to alter the path of the light. ... 03/09/06 - 20060051013 - System and method for controlling deflection of optical beams A method of controlling deflection of an optical beam at a beam steering element. The method comprises receiving switching instructions indicative of a target one of a plurality of potential transmit or receive elements; determining a control signal associated with the target transmit or receive element; and applying the control ... 03/02/06 - 20060045415 - Apparatus for switching optical signals An apparatus for switching optical signals, comprising a first group of port cards adapted to receive input optical signals to be switched by the apparatus and a second group of port cards adapted to provide switched optical signals to an entity external to the apparatus. Each of the port cards ... 03/02/06 - 20060045414 - Apparatus for redirecting optical signals in free space Apparatus for redirecting a plurality of optical beams emanating from a respective plurality of optical transmitters arranged in a pattern along a first dimension and a second dimension. The apparatus comprises a plurality of refractive regions. Each refractive region intercepts the optical beams emanating from an associated group of optical ... 02/16/06 - 20060034562 - Beam switch structures and methods A substantially straight beam in an unbuckled state is compressed to cause the beam to buckle using an adjustable compressor. The adjustable compressor applies force to one or both ends of the beam and limits compression on the beam to allow the beam to move between a first buckled state ... 01/26/06 - 20060018591 - Method and system for controlling an optical switch using dynamic compensation A free space optical switch that uses both an open loop control mode and a closed loop control mode. The open loop control mode is used to transition to a state where at least some light is sensed at a destination port. A closed loop control mode is then used, ... 01/05/06 - 20060002654 - Optical fibre switching assembly An optical beam steering arrangement, comprises: a moveable optical element; actuating means for causing the movement of said element; a connecting means between said element and said actuating means for transmitting movement from said actuating means to said element; and flexure means which carry said optical element and are compliant ... 01/05/06 - 20060002653 - Apparatus for an optical circuit having a flat wavelength response Optical circuits having a flat wavelength response are disclosed. A disclosed apparatus includes a first optical coupler, first and second optical waveguides optically coupled to the first optical coupler and a second optical coupler optically coupled to the first and second optical waveguides. The first optical coupler couples input light ... 01/05/06 - 20060002652 - Optical shuttle system and method used in an optical switch An optical shuttle for routing signals in a communications system that includes a terminal connected to a power source, a shuttle that includes waveguides used for routing the signals, and a beam connected to the terminal and the shuttle so that the beam suspends the shuttle. When power from the ... 12/22/05 - 20050281504 - Flexible waveband aggregator and deaggregator and hierarchical hybrid optical cross-connect system A flexible waveband deaggregator/aggregator design is disclosed, including an embodiment that utilizes flexible band tunable filters and an embodiment that utilizes tunable interleavers. An optical cross-connect design is also disclosed which utilizes the flexible waveband deaggregators and which can replace a core all-optical switch with a fiber interconnect matrix. ... 12/22/05 - 20050281503 - Electrowetting optical switch A switchable optical element having a first discrete state and a different, second discrete state. The element comprises a fluid system including a first fluid (44) and a different, second fluid (46), a wavefront modifier (26) having a face (28); and a fluid system switch for acting on the fluid ... 12/01/05 - 20050265652 - Optical routers based on surface plasmons An apparatus for performing optical routing includes a metal layer having first and second sides, a regular array of structures positioned along the first side, and an input optical waveguide positioned to illuminate a portion of the first side. The illuminated portion of the side is adjacent to ones of ... 12/01/05 - 20050265651 - Fast pivot mechanism A method and apparatuses are provided for switching an optical element into and out of an optical path. The apparatus comprises an arm assembly having an axis, first and second arms, first and second latch mechanisms, a stop element, and a solenoid. The first and second arms are coupled to ... 11/24/05 - 20050259914 - Photonic switch working in momentum-division-multiple-access (mdma) mode for microwave and optical wavelengths based upon the measurement of the spin, the orbital angular momentum and the total angular momentum of the involved photo Photonic switch working in Momentum-Division-Multiple-Access (MDMA) mode for microwave and optical wavelengths based upon the measurement of the spin, orbital angular momentum and total angular momentum of the involved photons. For the optical wavelengths Dove prisms and holograms are used in form of a Mach-Zehnder-Interferometer as selectors; for the microwave ... 11/10/05 - 20050249455 - Optical switch having photonic crystal structure The present invention provides an optical switch having a photonic crystal structure. An optical switch of the invention has a slab optical waveguide structure whose core (35) has a two-dimensional photonic crystal structure where two or more media (33, 34) with different refractive indices are alternately and regularly arranged in ... 11/10/05 - 20050249454 - 2x2 optical switch A 2×2 optical switch routs each light signal received from input ports to selected output. The optical switch has an adjustable light signal steering element, a fixed light signal steering element, and a steering element actuator. The adjustable light signal steering element is repositioned by the steering element actuator to ... 11/03/05 - 20050244097 - Optical switch and optical branch/insertion unit comprising it An optical switch easy to adjust optical parts without using a catoptric system and an optical add/drop multiplexer using the optical switch are provided. Between an input light outputting collimator device 20 and an output light inputting collimator device 21 provided to face each other at a predetermined spaced interval, ... 10/27/05 - 20050238281 - Movable lens beam steerer Embodiments of a method to move a lens of an optoelectronic moduleto adjust steering of a light beam, and a system having the optoelectronic module, are described herein. ... 10/20/05 - 20050232535 - Optical switch and display unit The present invention provides an optical switch for making part of incident light, which has been made incident on an optical waveguide, selectively emergent to a light emergence portion provided outside the optical waveguide. The optical switch includes a liquid crystal device for selective emergence of the incident light. An ... 10/13/05 - 20050226550 - Control method and control apparatus of optical device The present invention aims at providing a control method and a control apparatus for controlling the operation setting of an optical device with high accuracy, so as to reliably obtain characteristics according to a desired relationship to be set corresponding to a signal light, immediately after the control start. To ... 10/13/05 - 20050226549 - Switchable microfluidic optical waveguides The present invention provides microfluidic optical waveguides and waveguide switches providing capability for multiple outlet paths for the fluid waveguides and optical signals contained therein. A microfluidic structure comprises a core inlet channel, one or more cladding fluid inlet channels intersecting with the core inlet channel downstream of a core ... 09/29/05 - 20050213875 - Optical cross-connect device and method of optical communication control An optical cross-connect device, which has a presently-used optical cross-connect section and a preliminary optical cross-connect section, includes a switching unit. When a transmission path from a transmission node to a reception node is operating under normal conditions, the switching unit switches priority signals from the presently-used optical fiber at ... 09/15/05 - 20050201672 - Mems based rf components and a method of construction thereof A three dimensional waveguide is integrated with a MEMS structure to control a signal in various RF components. The components include switches, variable capacitors, filters and phase shifters. A controller controls movement of the MEMS structure to control a signal within the component. A method of construction and a method ... 09/08/05 - 20050196097 - Optical switching using light bullets A method and apparatus for optical switching using light bullets is presented. In one embodiment, the invention is a switch. The switch is a multi-channel, optical switch to use light bullets as optical pulses. The switch includes a waveguide of a first material. The switch also includes a plurality of ... 08/25/05 - 20050185884 - Single-level no-crossing microelectromechanical hitless switch for high density integrated optics An optical switch includes at least two signal bus waveguides that receive optical signals as input. At least two directional couplers are positioned so that the inputs to the at least two directional couplers are not switched relative to each other. ... 08/25/05 - 20050185883 - Optical switch with low pressure bubble An optical switch is presented. In a first state, a trench is filled with index matching fluid so that light from a first waveguide passes through the trench to a second waveguide. In a second state, a bubble is formed within the index matching fluid so that light from the ... 08/18/05 - 20050180684 - Optical filter and image display device using the same An optical filter for preventing the image quality of images displayed on a screen from being degraded in an image display apparatus. The optical filter is disposed on a front side of the screen and is spaced a certain distance from the screen, and has a circularly polarizing filter layer ... 08/18/05 - 20050180683 - Tuneable filter arrangement A tuneable filter arrangement (10) includes a plurality of tuneable Bragg gratings (22, 24), each grating (22, 24) arranged, in use, to be independently tuneable to different wavelengths, a first switch (16) for selectively directing an incoming optical signal (26) to any one of the gratings (22, 24), a first ... 08/18/05 - 20050180682 - Optical external dpqsk modulator with subsequent prechirping A modulator arrangement for modulating an optical signal using a differential quadrature phase shift key for use in an optical wavelength division multiplex (WDM) optical communications system comprising a laser for producing an optical signal of a selected wavelength, which signal is split by a splitter (4), each part of ... 08/11/05 - 20050175274 - Modulator based on tunable resonant cavity The index of refraction of waveguide structures can be varied by altering carrier concentration. The waveguides preferably comprise semiconductors like silicon that are substantially optically transmissive at certain wavelengths. Variation of the carrier density in these semiconductors may be effectuated by inducing an electric field within the semiconductor for example ... 07/28/05 - 20050163420 - Multichannel optical communications module 250 μm is the standardized pitch H of the prevalent multichannel ribbonfibers. Current laser diodes and photodiodes have a size larger than 300 μm. Curving lightpaths made on a silicon bench for reconciling the chip size with current ribbonfibers causes bending power loss, optical crosstalk and difficulty of production. Linear ... 07/28/05 - 20050163419 - Optical switches and logic and methods of implementation Optical switches and logic devices comprising microstructure-doped nanocavity lasers are described. These switches and logic devices have gain and thus can be cascaded and integrated in a network or system such as for example on a chip. Exemplary switching elements switch the intensity, wavelength, or direction of the output. Exemplary ... 07/28/05 - 20050163418 - Single-level no-crossing microelectromechanical hitless switch for high density integrated optics An optical switch includes at least two signal bus waveguides that receive optical signals as input. At least two directional couplers are positioned so that the inputs to the at least two directional couplers are not switched relative to each other. ... 07/28/05 - 20050163417 - Optical switch with a micro-mirror and method for production thereof The invention concerns an optical switch using a micromirror and its method of fabrication. This optical switch comprises at least one input optical path (31) and at least a first and a second output optical path (35,37) and a micromirror (41) able to move between an output of the input ... 07/21/05 - 20050157974 - Optical switching and logic systems and methods Optical switches and logic devices comprising microstructure-doped nanocavity lasers are described. These switches and logic devices have gain and thus can be cascaded and integrated in a network or system such as for example on a chip. Exemplary switching elements switch the intensity, wavelength, or direction of the output. Exemplary ... 07/14/05 - 20050152637 - Wavelength power equalization by attenuation in an optical switch A method for equalizing optical signal power in a group of optical signals transmitted through an optical switch in an optical transmission system. In one embodiment a group of optical signals is input into an optical switch having at least one movable mirror array with a plurality of reflectors formed ... 06/16/05 - 20050129351 - Light triggered light switch A light switch is disclosed to turn on or off the light signal in a light channel by means of the response of piezoelectric material to the electric field of light in the light channel. The LIGHT TRIGGERED LIGHT SWITCH is a light switch that is actuated by light of ... 06/09/05 - 20050123233 - Optomechanical switch using laser or light movable liquid crystal An optomechanical switch comprised of light or laser movable liquid crystal is disclosed. The optomechanical switch consists of a plate of light movable liquid crystal rotatably disposed with respect to a substrate. When activated with a light or laser source, the light movable liquid crystal is rotated angularly to create ... ### FreshPatents.com Support - Terms & Conditions |