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7606450 |
Light activated optical switch that includes a piezoelectric element and a conductive layer
A light activated optical switch includes at least one conductive layer located adjacent to a piezoelectric element to enhance the electrical field that is applied to the piezoelectric element in...
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7606449 |
Adaptive switch contamination compensation
In a method and system for compensating for contamination of a switch or of a load circuit connected to the switch in a switch circuit, on/off signal levels are obtained corresponding to on/off...
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7603006 |
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...
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7596290 |
Optical-switch testing apparatus, optical-signal switching apparatus, optical-switch testing method, and control method for optical-signal switching
A light source supplies optical signal to an optical switch and a detector detects light receiving level. A control unit changes a deflection control amount for changing an angle of a tilt mirror,...
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7595212 |
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...
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7590316 |
Optical switch
An optical switch, comprises: a plurality of N input ports ( 2 ); a plurality of M output ports ( 24 ); and a plurality of displaceable beam steering arrangements ( 1 ) which, during switching,...
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7590312 |
Interferometer optical switch and variable optical attenuator
The present invention discloses an interferometer optical switch that can carry out switching over a broad band and has a high extinction ratio and large fabrication tolerance. The interferometer...
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7580598 |
Optical signal processing device, information recording/reproducing apparatus and information recording/reproducing system
Optical signal processing device that processes an optical signal based on predetermined data has a first terminal for inputting and outputting the optical signal, which is connected to a first...
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7574081 |
Optical system with optical waveguides
The present invention provides an optical system with waveguides, which comprises first, second and third optical input/output means ( 12, 14, 16 ), fourth and fifth multi-mode optical waveguides (...
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7574080 |
Technique for photonic switching
A technique for photonic switching is disclosed. In one particular exemplary embodiment, the technique may be realized as a method for photonic switching. The method may comprise receiving at least...
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7574079 |
Exogenous tone dither rejection in optical switching
Methods and apparatus for dither control of a micromirror using a servo control loop in an optical switching apparatus, an optical switching apparatus and optical network are disclosed. A servo...
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7574078 |
Reconfigurable optical switch
An optical switch is provided which includes a plurality of input/output ports for receiving one or more wavelength component(s) of an optical signal. The optical switch also includes an optical...
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7574073 |
Optical devices with integral isolators
An isolator assembly, for use internally within a multi-port optical switch, and which operates on a preselected number of input port channels. The assembly incorporates a sequence of a...
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7570847 |
Method of forming an optical switch
A method of forming an optical switch is disclosed. The optical switch is implemented with one or more cantilevered optical channels, which are formed in a flexible waveguide structure, and an...
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7567736 |
Waveguide type wavelength domain optical switch
A waveguide type wavelength domain optical switch includes an input/output port including at least three waveguide spectrometers stacked in thickness direction, a first lens for collecting light...
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7565044 |
Optical module method of manufacturing the same
An optical module with a first optical waveguide substrate having end faces; a second optical waveguide substrate which includes a first optical waveguide, a second optical waveguide, and end...
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7561799 |
Optical path switching device
An optical path switching device includes compact and unpackaged components; the components are mounted onto a single platform; and the components are coupled by luminous flux. Connection between...
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7561766 |
Thin film interleaver
A thin film interleaver device is disclosed. The thin film interleaver includes thin film optics. The thin film(s) are formed such that they reflect one group of wavelengths while allowing a second...
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7561760 |
System and method for optical beam steering using nanowires and method of fabricating same
An apparatus and a method for steering optical frequency beams using nanowire. A method includes providing one or more nanowire waveguide arrays, generating an optical frequency beam, wherein the...
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7559703 |
Optical module and data communication system including the optical module
An optical module includes a fiber array, a laser diode array, a photodiode array and a micro-lens array. The fiber array includes optical fibers which are divided to a transmitter group and a...
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7558456 |
Optical waveguide device
An optical waveguide device includes a lower cladding layer, a high refractive index region provided on the lower cladding layer, a pair of cores provided on the lower cladding layer on both sides...
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7558447 |
Single-pole optical wavelength selector
A single-pole, wavelength selective switch in which the input optical signal is converted to a light beam having a defined polarization, such as S-polarization, with respect to the system plane....
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7555177 |
All fiber magneto-optic on-off switch for networking applications
A fiber optic switch based on the magneto-optic effect of magnetic materials is presented. Due to the optical fiber based construction of the switching device it is suitable for optical fiber...
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7551813 |
Simplified fiber-optic switch for all-optical fiber-optic lines
Simplified and insensitive to ambient condition mechanical bi-directional fiber-optic switch that can work in fire and explosion hazardous environment. The switch houses a sensitive element—a...
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7548668 |
Programmable optical array
An apparatus having a topology that allows building complicated optical programmable arrays useful for manipulating the phase and/or amplitude of an optical signal. Sophisticated filtering and...
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7546011 |
Monolithically integrated optical devices with amorphous silicon arrayed waveguide gratings and InGaAsP gain
An optical waveguide assembly and method of forming the same is described. The optical waveguide assembly includes a waveguide, an amorphous silicon arrayed waveguide grating communicative with the...
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7546005 |
Optical switch and path switching method
An optical switch not having waveguide crossings, as in a matrix switch, enabling input/output path switching of N×N, and not increasing the optical loss or the size when the number of channels...
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7546004 |
Photonic interconnect system
A photonic interconnect system avoids high capacitance electric interconnects by using optical signals to communicate data between devices. The system can provide massively parallel information...
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7542633 |
Plasmon gate
A variety of structures, methods, systems, and configurations can support plasmons for logic.
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7539371 |
Optical apparatus with reduced effect of mirror edge diffraction
A micromirror for use in an optical apparatus may comprise a reflective portion, configured to be rotatable about a switching axis and an attenuation axis that is different from the switching axis....
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7536068 |
Micro movable element and optical switching device
A micro movable element includes a micro movable substrate, a package base and an electroconductive connector. The micro movable substrate is provided with a micro movable unit that includes a...
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7536067 |
Photonic integrated circuit device and elements thereof
A photonic integrated circuit (PIC) device is described. The PIC device includes a set of optical transceivers including optical transmitters and optical receivers, and an embedded optical...
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7532787 |
Continuous optical null tracking method for optical switch
A method and apparatus are provided for real-time correction of a voltage drift of an optical switch. The correction may be made without interrupting an optical data stream of the optical switch....
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7532786 |
Light activated optical switch that includes a piezoelectric element with layers of piezoelectric material having different piezoelectric characteristics
A light activated optical switch has a piezoelectric element that has at least two layers of piezoelectric material with each layer having different piezoelectric characteristics. The piezoelectric...
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7532776 |
Optical element and optical switch
A core layer of an optical waveguide is grown as a film comprised of an electro-optic material with a rhombohedral structure and grown above a substrate with (100) crystal orientation on a major face.
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7529454 |
Photonic crystal surface states
A photonic crystal may be configured to support a surface state for logic.
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7529443 |
Beam steering element with built-in detector and system for use thereof
An all-optical cross-connect switching system provides optical switching that may reduce processing requirements by three orders of magnitude over conventional techniques by associating at least...
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7529442 |
Polarization-independent electro-optical (EO) switching
In one embodiment, an apparatus includes a passive element including one or more first waveguides and one or more second waveguides. The apparatus also includes an active element integrated into...
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7529441 |
Wavelength routing optical switch
An optical switch for routing arbitrary wavelengths between optical fibers in optical networks. The optical switch may include a highly wavelength dispersive element together with a spatially...
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7528364 |
Optical beam steering and sampling apparatus and method
In a light (optical) beam steering/sampling system, a matrix inversion control technique is used to decouple the operation of the actuators which drive the steering mirrors. The control technique...
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7526147 |
Sensor array for perimeter defense
An intensity modulated broadband optical signal source is arranged to produce optical signals in a plurality of wavelength bands. A demultiplexer/multiplexer pair receives optical signals from the...
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7522789 |
Optical switches and actuators
An optical switch comprises one or more input ports for directing an optical beam into the switch; dispersive means configured to receive said optical beam and which spatially separate the optical...
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7519250 |
Optical switches
Optical switches are described herein. In one embodiment, an exemplary optical switch includes, but is not limited to, a first waveguide, a second waveguide across with the first waveguide in an...
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7519247 |
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...
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7515783 |
Micro-optic device and method of manufacturing same
A micro-optic device including a complicate structure and a movable mirror is made to be manufactured in a reduced length of time. A silicon substrate and a single crystal silicon device layer with...
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7505648 |
Device comprising a polarization-independent micro-resonator
Polarization-diverse optical devices and related methods are disclosed. In some embodiments, these devices and methods are realized by utilizing a four-port, wavelength-dependent optical coupler...
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7499609 |
Optical Switch
A blocking portion is provided at an end of the mirror to prevent a light beam emitted from an input port from being transmitted to or reflected by first and second output ports. The mirror is...
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7499608 |
Apparatus and method for optical switching with liquid crystals and birefringent wedges
An optical switch includes an optical waveguide to route an input optical beam. At least one polarization switch receives the input optical beam from the optical waveguide. At least one...
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7499607 |
Light triggered bending element light switch
A LIGHT TRIGGERED BENDING ELEMENT LIGHT SWITCH will be used to turn on or off the light signal in one of two adjacent fiber optic channels by the action of the electric field of the light passing...
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7496252 |
Optical switch fabric with redundancy
An optical switch fabric with an input stage, an output stage, and a center stage coupled in a cascaded manner. The center stage includes (1) a minimum number of center switches greater than one...
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