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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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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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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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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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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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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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7492990 |
Optical switching element, optical switching device, and color image displaying apparatus
An optical switching element includes a resonant reflection element and a driving unit. The resonant reflection element has a thickness portion functioning as a waveguide layer, with one surface in...
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7486850 |
Optical switch system
An optical switch system has a plurality of micro mirrors arranged in a plane, and an angle of each of the micro mirrors can be controlled for reflecting an optical signal entered from one or more...
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7486848 |
Layered bending element light switch
A LAYERED 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 through...
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7486849 |
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...
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7483602 |
Planar array optical switch and method
An optical switch device includes a first array ( 20 ) of reflectors ( 22 ), each associated with a separate optical fiber input ( 12 ), and a second array ( 30 ) of reflectors ( 32 ), each...
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7483601 |
Polarization maintaining optical device
A polarization maintaining optical device may include a polarization maintaining optical array. The device may also include a microlens array to receive light from the polarization maintaining...
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7477818 |
Bragg grating elements for optical devices
Fiber optic devices including volume Bragg grating (VBG) elements are disclosed. A fiber optic device may include one or more optical inputs, one or more VBG elements, and one or more optical...
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7477847 |
Optical and electrical channel feedback in optical transceiver module
Optical transceivers have loopback and pass-through paths for diagnosing transceiver components and optical networks connected to the optical transceiver or for routing data out of the transceiver...
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7477813 |
Multi-beam light source, method for manufacturing the same, light scanning unit using the same, and image forming apparatus using the same
The invention provides a multi-beam light source including a light guide array by which the yield can be improved. An array pitch P 2 of entrance surfaces of light guide pattern is 1/N as wide as...
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7477812 |
System and method for providing fast, low voltage integrated optical elements
A switching system is disclosed for an optical signal. The switching system includes a first optical waveguide coupled to a first electrode, a second electrode, and a second optical waveguide. The...
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7474818 |
Optical switch and method of using the same
An optical switch for switching signal light by allowing the signal light to obliquely enter a non-linear optical thin film 1 containing nano-crystal of metal oxide from a light path disposed in...
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7471858 |
Configurable dispersion compensation trimmer
The invention pertains to optical fiber transmission systems, and is particularly relevant to transmission of large volumes of data over long distances at high rates. An improved apparatus...
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7469080 |
Modular all-optical cross-connect
An all-optical, optical cross-connect includes first and second pluralities of multiport optical devices. Each of the first plurality of multiport optical devices have at least one input port for...
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7466890 |
Cabinet access sensor
A cabinet tamper detection device is disclosed. The tamper detection device includes a first portion and a second portion. The first portion includes a housing and a first magnet movable relative...
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7466924 |
Reconfigurable data communications system with a removable optical backplane connector
The present invention is directed to a reconfigurable data communications system. The system includes a removable optical backplane connector with a first end and a second end, a first data...
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7465903 |
Use of mesa structures for supporting heaters on an integrated circuit
An integrated circuit is joined to a liquid container. The integrated circuit includes a passivation layer. A resistor is used as a heater to heat fluid in a liquid container. A mesa structure is...
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7466881 |
Optical switch
An optical switch includes an optical source; a plurality of tunable optical resonators or tunable waveguides in optical communication with the optical source; and a tuning device configured to...
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7460294 |
Optically addressed MEMS
Optically controlled micro-electromechanical systems (MEMS) is disclosed. In one embodiment, a MEMS device may include a rotatable mirror having an optical sensor that is in electrical...
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7457539 |
2×2 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...
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7457021 |
Fiber based MEMS
MEMS can be fabricated from fibers without the use of a matrix material. Devices can be built where fibers are attached only at a substrate edge (e.g. cantilevers, bridges). Motions can be...
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7457493 |
Multi-beam multi-aperture optical beam steering module
An m×n fan out device for receiving at least m=2 laser beams of different wavelengths and dividing the power of each laser beam into at least two other laser beams directed to at least one of n...
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7454099 |
Optical channel shifting device
An optical channel shifting device includes a containing unit having a first inner space and a second inner space adjacent to the first inner space, an input optical fiber held in the first inner...
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7454100 |
Single-pole optical wavelength selector
A fiber-optical, wavelength selective switch, especially for channel blocking applications. The input signal is converted to light beams having predefined polarizations relative to the plane in...
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7450795 |
Signal interconnect incorporating multiple modular units
An interconnect element incorporates a plurality of smaller, substantially identical, interconnect modules. Multiple identical elements can in turn be combined to form larger interconnect networks....
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7450798 |
Automatic shutdown system and method for optical multiplexers and demultiplexers
An automatic shutdown system for optical multiplexers and demultiplexers includes an optical switch that is disposed in a common optical channel between a transmitter and a receiver of an optical...
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7450801 |
Apparatus for free-space switching between planar lightwave circuits
A free-space optical switch for switching light beams between waveguides of planar lightwave circuits (PLCs). Switching is accomplished using a combination of lenses and micromirrors. The lenses...
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7450796 |
Radiation switch
An apparatus and system includes a radiation generation device for generating radiation and a radiation detection device. A first radiation channel is optically-coupled on a first end to the...
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7447399 |
Optical switch, and apparatus and method for controlling optical switch
In an optical switch comprising a wavelength spatially dispersive optical element for spatially dispersing a wavelength-multiplexed beam according to wavelengths, a plurality of output ports and a...
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7447396 |
Plasmon multiplexing
A variety of structures, methods, systems, and configurations can support plasmons for multiplexing.
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7444043 |
2×2 Mechanical optical switch
A 2×2 mechanical optical switch includes a base, four collimators (two input collimators and two output collimators), an ultra thin mirror (double-sided reflection) and a switching mechanism of...
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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...
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7440650 |
Planar lightwave circuit based wavelength selective switch
The present invention extends the concept of a standard array waveguide grating (AWG), which focuses each wavelength component launched via an input AWG to a Rowland circle inside a planar...
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7440648 |
Wavelength selective switch
A wavelength selective switch of the invention separates WDM light coming out from an input fiber of a fiber collimator array according to its wavelength, in a diffraction grating, and reflects...
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7440649 |
Wavelength selective switch module
A wavelength selective switch module is disclosed. The wavelength selective switch module includes: a unit for generating test light; a multiplexing unit for multiplexing the test light with the...
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7437032 |
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...
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7430347 |
Methods, systems, and apparatuses for optically generating time delays in signals
Methods, systems, and apparatuses for producing time delays in optical signals are provided. The methods, systems, and apparatuses allow the time it takes for an individual light beam to travel an...
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7428355 |
Wavelength selective and level adjusting optical device
An optical device enabling reducing device scale is constituted by M circulators ( 11 a, 11 b ), (M being a natural number), a waveguide-type diffraction grating ( 12 ) including M first...
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7428352 |
Two-dimensional photonic crystal and optical function element using the same
An object of the present invention is to provide a two-dimensional photonic crystal which can be used for optical path changeover switches or the like to allow switching of a path. A first area ...
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7428353 |
MEMS device control with filtered voltage signal shaping
A MEMS system is disclosed. The system includes a MEMS device having including a gimbal-less device mount supported by two or more bi-axial linkages. Each bi-axial linkage is mechanically coupled...
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7428348 |
Electro-optical switching using coupled photonic crystal waveguides
An electro-optical switch implemented in coupled photonic crystal waveguides is disclosed. The switch is proposed and analyzed using both a finite-difference time-domain (“FDTD”) method and a...
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7426323 |
Dispersion management in branched optical networks
Dispersion may be managed in a branched optical network by using transmission segments having a single period segment dispersion map. One or more of such segments may be coupled to network nodes...
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7426347 |
Shared optical performance monitoring
An apparatus for shared optical performance monitoring (OPM) is provided. A wavelength sensitive device receives light at an input port and routes it wavelength selectively to a set of output...
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