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7231110 |
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...
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7231109 |
Ultrafast optical communications system with multiplexer and demultiplexer
The electronic-to-optical multiplexer takes n electronic inputs X i where i=0 to n−1; converts X i into optical signals Y i each with a different wavelength; wavelength multiplexes Y i ;...
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7224859 |
Opto-electronic integrated circuit device, opto-electronic integrated circuit system and transmission method
The opto-electronic integrated circuit device comprises an optical switch 18 provided in an input port 12 a of a first input/output port 36 a over a substrate 10 and changing over an...
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7221818 |
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...
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7221819 |
Operating an optical switch at a negative pressure differential
An optical switch having liquid or vapor bubbles at switching sites operates with a fluid pressure less than the vapor pressure of the liquid. This negative pressure differential reduces the energy...
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7221817 |
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...
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7218805 |
WDM ring network for flexible connections
A broadcast and select ring network for optical WDM communication includes two parallel fiber rings ( 1 a, 1 b ) carrying traffic in opposite directions between nodes ( 3 ; A, B, C, D). The nodes...
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7218815 |
Athermal arrayed waveguide grating
An athermal arrayed-waveguide grating is disclosed and includes an input waveguide for inputting two or more optical signals from one exterior side, a grating array for separating the optical...
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7215843 |
Optical switching apparatus and optical switching method
An optical switching apparatus includes an optical switch having a plurality of input ports and output ports, optical amplifiers, monitor circuits, optical amplifiers monitor circuits, and a...
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7213740 |
Optical structures including liquid bumps and related methods
A liquid prime mover can be used to position a component on a substrate. For example, a liquid material can be provided on the substrate adjacent the component such that the component has a first...
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7215854 |
Low-loss optical waveguide crossovers using an out-of-plane waveguide
An improved low-loss waveguide crossover uses an out-of-plane, such as vertical, waveguide to bridge over any number of waveguides with very low, or essentially no, optical loss or crosstalk....
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7215842 |
Light control element and light control device
A light control element includes a substrate, an optical coupling component formed on the substrate by a photonic crystal structure, and a variable refractive index part provided in a part of the...
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7215853 |
Optical module formed on common substrate for branching an optical signal
A collimator 111 for an input light, a collimator 112 for an output light, a collimator 113 for a branched light, a collimator 114 for an inserted light and a wavelength selecting filter ...
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7212739 |
Protection switching arrangement for an optical switching system
A protection arrangement for an optical switching system includes protection switching for switch planes in the optical core and for ports in the tributary cards. For a multiple layer switch core...
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7212704 |
Systems and methods for optical switching to colorless ports and colored 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...
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7206475 |
Optical switching apparatus, optical transmission system and method of setting up for optical signal route
In an optical switching apparatus having redundantly-arranged optical switches, a route switching operation mode, an autonomic redundant switching operation mode and a compulsory redundant...
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7206474 |
Heating of trenches in an optical bubble switch
An optical bubble switch having structures for heating trenches in response to applied electromagnetic energy. The structures for heating trenches according to the present teachings reduce the...
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7206509 |
Method and apparatus for temporally shifting one or more packets using wavelength selective delays
A method and apparatus are disclosed for temporally shifting one or more packets using wavelength selective delays. The header information associated with each packet, together with a routing...
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7206515 |
Single-ended/differential wired radio frequency interface
A package to encapsulate an optical component includes a RF interface to receive high frequency signals from an external source. The RF interface pins that can be configured as one or more...
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7203393 |
MEMS micro mirrors driven by electrodes fabricated on another substrate
An array of electrostatically tiltable mirrors are formed in a MEMS structure. A first SOI wafer is etched to form an array of tiltable plates in the silicon device layer joined to the remainder of...
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7203396 |
All optical chopping using logic gates apparatus and method
An all optical chopping device for shaping and reshaping comprising an all optical AND logic gate having a first input for receiving a first optical signal, a second input for receiving a second...
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7203398 |
Compact DMD-based optical module
An optical module having an integral optical waveguide with waveguide ports at each end. The optical waveguide receives an input light beam through a first waveguide port. The input light beam...
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7200290 |
Optical switch
An optical switch has an optical waveguide whose output path of an optical signal branches into two, a carrier injection section which is provided to a branch portion of the optical waveguide and...
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7197246 |
Optical switch, optical amplifier and optical power controller as well as optical add-drop multiplexer
The first present invention provides an optical switch including the following elements. At least a plurality of optical transmission lines are provided for transmissions of optical signals. Each...
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7197213 |
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...
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7197204 |
Applications of light movable liquid crystal
Practical applications of a class of nematic elastomer which has light avoidance characteristics are disclosed. Such practical applications include a switching device, a load carrying device and...
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7192533 |
Method of manufacturing nanowires and electronic device
In the method, semiconductor substrates are etched to provide nanowires, said substrates comprising a first layer of a first material and a second layer of a second material with a mutual...
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7194153 |
Optical switch device
An optical switch device for driving a movable member mounting a light reflection member thereon by a magnetic drive circuit, wherein, in an optical waveguide switching device ( 1 ) as an optical...
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7190858 |
Optical time delay apparatus incorporating diffractive element sets
An optical time delay apparatus comprises: a multi-wavelength optical source; a diffractive element set imparting a wavelength-dependent delay on signals routed from the source to a 1×N optical...
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7190862 |
Methods and apparatus for optical switching using electrically movable optical fibers
Methods and apparatuses for electrically controlled optical switches are presented. An electrically controlled optical switch includes a fixture formed using a laminated dielectric material, a...
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7187819 |
Optical power distribution management and apparatus
A method, apparatus and computer program are disclosed for managing the distribution of optical power to a plurality of optical data devices. The devices can be data storage drives, data...
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7187814 |
Optical add/drop device
A drop-type AOTF is used as a configuration for removing from a through signal an optical signal having the same wavelength as that of an optical signal to be added. To the drop-type AOTF, RF...
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7187497 |
Polarization insensitive optical switching and routing systems and methods of manufacturing and operation
Polarization converter assemblies are utilized to provide switching and routing systems with effective coupling between a first and second router assemblies, and to provide polarization insensitive...
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7184186 |
Optical switch assembly
An apparatus for switching optical signals. An optical bench includes a plurality of through-openings for receiving a plurality of collimators and a plurality of actuators. The actuators include a...
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7183633 |
Optical cross-connect system
An optical cross-connect switch comprises a base ( 216 ), a flap ( 211 ) and one or more electrically conductive landing pads ( 222 ) connected to the flap ( 211 ). The flap ( 211 ) has a bottom...
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7184615 |
Electrically tunable diffractive grating element
The invention relates to an optical device ( 50 ) for manipulating a light wave (λ) using a diffractive grating structure (G). According to the basic idea behind the invention a prior art type...
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7181101 |
Optical measuring system with arrayed optical receivers and method thereof
The disclosure is an optical measuring system and the method thereof for precisely measuring physical characteristics of light emitted from waveguides, such as beam size, pattern, strength,...
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7181102 |
Optical switching systems and methods
In some embodiments, a 1×N optical switch includes: a plurality of co-planar, parallel output optical fiber collimators oriented to receive light substantially perpendicular to a longitudinal...
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7177493 |
Programmable optical add/drop multiplexer
A multi-channel optical switching system particularly usable as a programmable optical add/drop multiplexer (POADM) in a multi-wavelength communication system. The switching system uses a thin film...
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7177494 |
Optical control device and method
An optical control device allows switching of signals without mechanical components. The device includes a first member; a second member; an active stage between the first member and the second...
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7177505 |
MEMS-based actuator devices using electrets
Electrets are used in a variety of MEMS-based actuator devices. The electret is able to store electrical charge for a long time with negligible charge leakage. Therefore, when an electret is...
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7174065 |
Optical switching fabric with an optical to electrical converter in the output plane
An optical switching fabric with an optical to electrical converter in the output plane. The optical switching fabric has an input plane with at least one input. The input plane provides at least a...
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7168826 |
Light guiding apparatus, lighting apparatus, space modulation part, and image projection apparatus
A light guiding apparatus has a first transparent member, a second transparent member, and a transparent member holding portion. The first transparent member has a light entry surface, a first side...
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7167609 |
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...
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7167612 |
Wavelength tunable filter capable of being bidirectionally driven by electromagnetic forces
A wavelength tunable filter capable of being driven such that reflecting mirrors move more distant as well as closer by using the principle that a direction of the electromagnetic forces changes...
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7162118 |
Dual optical switch
A single-sided optical switching device for functioning as a dual switch wherein individual switches share common switching means is disclosed. The individual switches have separate ports and share...
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7162114 |
Optical energy switching device and method
An optical power or energy-switching device, comprising an optical waveguide having an input section and an output section, the two sections forming a pair of opposed surfaces extending...
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7162115 |
Multiport wavelength-selective optical switch
An multiport, multi-wavelength optical switch having and array of angular beam-directing devices employs an anamorphic optical system that transforms a beam corresponding to a given wavelength of a...
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7155081 |
Two-dimensional optical deflector
A two-dimensional optical deflector includes a first deflector, which deflects a light beam about a first axis at a high speed, a second deflector, which deflects a light beam about a second axis...
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7153037 |
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...
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