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7643714 |
Nanophotonic devices in silicon
Systems and methods for manipulating light with high index contrast waveguides clad with substances having that exhibit large nonlinear electro-optic constants χ 2 and χ 3 . Waveguides...
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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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7583894 |
Interferometric operation of electroabsorption modulators
Methods and apparatus are described for modulating an optical signal using electroabsorption in conjunction with an optical interferometer. Phase-shift keying modulation can be achieved with lower...
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7577327 |
Optical junction apparatus and methods employing optical power transverse-transfer
An optical apparatus comprises an optical device formed on a device substrate, a first optical waveguide formed on the substrate or on the optical device, and a second, mechanically discrete...
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7555180 |
Optical branching component with low polarisation sensitivity and increased process tolerance
An optical branching component particularly suitable for use as a tap device is described. The component has two optical waveguides coupled between two optical couplers which each include at least...
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7548672 |
Fiber-based light source device
The present invention provides a fiber-based light source device, which includes a plurality of first, second or third light-emitting devices for respectively emitting a plurality of first, second...
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7546014 |
Optical directional coupler
An optical directional coupler ( 1 ) comprises first and second straight optical waveguides ( 2, 3 ) having respective cores ( 2 a, 3 a ) extending longitudinally close to each other to form an...
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7542653 |
Passive fiber organizer for mesh network node interconnections
A mesh optical network node has switch cards which carry active components, such as wavelength routers to switch the paths of optical signals through the node and a fiber organizer handles the...
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7515779 |
Optical semiconductor device
An optical semiconductor device has a heater, an optical waveguide layer, a first electrode and a second electrode. The heater is provided on a first semiconductor region and has more than one...
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7499615 |
System and methods for routing optical signals
A system and methods for routing optical signals are disclosed. The system includes a first large core hollow waveguide having a reflective coating covering an interior of the waveguide and...
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7492992 |
Bi-directional PLC transceiver device
An integrated bi-directional transceiver device for multiple wavelength optical signals that has a high level of wavelength isolation at the receivers of the device and low cross-talk of light...
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7492977 |
All-fiber current sensor
Embodiments of the present invention provide a current sensing device. The current sensing device includes, inter alia, a three-by-three (3×3) optical coupler made of polarization-maintaining (PM)...
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7480429 |
Chip to Chip optical interconnect
An apparatus for optical communication is provided. The apparatus includes a first waveguide formed on a first surface and a second waveguide formed on a second surface. The first and second...
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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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7460757 |
Distributor system and method for fibre optic cables
The invention relates to a method and a device for coupling fiber optic cables. Said device comprises at least one module, which is equipped with at least one retaining unit for retaining at least...
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7457491 |
System, method and apparatus for improved electrical-to-optical transmitters disposed within printed circuit boards
The present invention provides a system, method and apparatus for improved electrical-to-optical transmitters ( 100 ) disposed within printed circuit boards ( 104 ). The heat sink ( 110, 200 ) is a...
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7457498 |
Optical waveguide structure
An optical waveguide structure has a single port on one input/output side, a plurality of ports on another input/output side and an S-curve optical waveguide portion arranged on the outermost side...
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7450788 |
Optical splitter/coupler and optical communication system
An optical splitter/coupler has: a multimode waveguide having an electrooptic effect, and propagating light in a multimode; one incident waveguide propagating light in a single mode, and inputting...
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7447400 |
Optical waveguide substrate and method of fabricating the same
The present invention relates to an optical waveguide substrate, realized by means of a simple configuration and processes, having a structure in which an optical component can be embedded within...
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7444045 |
Hybrid sphere-waveguide resonators
Microresonators, such as a microsphere resonators and planar microresonators, are optically coupled to waveguides for input and output of light. It is important that the relative positions of the...
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7437037 |
Optical module having gain member and partial reflection section waveguides formed on a substrate
The present invention is directed to an optical module, which stabilizes an oscillation characteristic of a laser by means of a simple configuration. To this end, a gain member, a partial...
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7415174 |
Dual optical channel monitor assembly and associated methods of manufacture and use
An optical channel monitor assembly for simultaneously measuring the optical power levels of multiple series of dense wavelength division multiplexed channels or the like traveling on separate...
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7400788 |
Linearized optical modulator having a plurality of coupling functions
Invention discloses an apparatus that provides linear optical modulation of light carrier signals by an electrical modulation signal. Linearized modulation is achieved through the selection of a...
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7389033 |
Planar lightwave circuit type variable optical attenuator
A planar lightwave circuit type variable optical attenuator with a small polarization dependent loss is provided. By setting the waveguide birefringence (absolute value) in first and second optical...
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7376294 |
Optoelectronic component with an adjustable optical property and method for producing the layer structure
The invention relates to an optoelectronic component and a method for producing it, in particular a waveguide structure, featuring at least one irradiation-sensitive structure in a layer structure...
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7373039 |
Low-ripple optical device
A low-ripple optical device comprising an optical demultiplexer structure and an optical multiplexer structure cascaded together wherein one of the structures exhibits n passband maxima and the...
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7369726 |
Optical communication between face-to-face semiconductor chips
One embodiment of the present invention provides a system that communicates between a first semiconductor die and a second semiconductor die through optical signaling. During operation, the system...
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7359598 |
Surface plasmon optic devices and radiating surface plasmon sources for photolithography
Disclosed is a surface plasmon optic device that has a periodic array of apertures in a dielectric substrate and a metal film formed on the dielectric substrate and emits light from metal-air...
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7335875 |
Optical branching unit, and method of manufacturing the same
An optical branching unit according to the invention, has on a substrate, a light input part which inputs light, an optical branch which branches the light input to the light input part at a...
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7330619 |
Laser and photodetector coupled by planar waveguides
An optical apparatus comprises: a waveguide substrate; three planar optical waveguides formed on the substrate, each comprising a transmission core and cladding; a laser positioned to launch its...
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7319820 |
Method of manufacturing optical communication system
A position of a first module ( 12 a ) with respect to an optical fiber ( 11 ) is determined in accordance with a receiving efficiency at the first module ( 12 a ) with respect to light emitted from...
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7308173 |
Optical fiber coupler with low loss and high coupling coefficient and method of fabrication thereof
An optical fiber coupler capable of providing a low loss, high coupling coefficient interface between conventional optical fibers and optical waveguide devices is provided. The novel coupler, which...
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7302140 |
Optical switch and matrix optical switch
The invention provides an optical switch including a substrate which has conductivity or semiconductivity, an optical waveguide layer which is formed on the substrate, and a control electrode which...
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7292746 |
All-optical flip-flop
The present invention provides a set-reset flip-flop operating in an all-optical manner. In this invention, a set pulse is inputted from the setting port. In doing so, only oscillation in set mode...
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7280760 |
Upgradeable optical add/drop multiplexer
An OADM includes optical input and output; first and second bandpass filters with a first pass band, optically coupled to the optical input and output, respectively; third and fourth bandpass...
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7269310 |
Optical connector, optical coupling method and optical element
An optical connector used for inputting light to an optical element from an external optical system or outputting light from an optical element to an external optical system includes a photonic...
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7260295 |
Optical waveguide and optical transmitting/receiving module
An optical transmitting and receiving module for an optical waveguide performs both a transmitting operation and a receiving operation simultaneously. The linear first waveguide is provided such...
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7257296 |
Optical waveguide element with directional coupler
An optical waveguide element having a directional coupler is disclosed. The element includes a first and a second waveguide located adjacent to each other at a predetermined portion for mode...
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7254290 |
Enhanced waveguide metrology gauge collimator
A free-space optically-coupled collimator for the efficient bidirectional transmission of an optical metrology beam emanating from a waveguide aperture of a waveguide optical transmission element,...
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7254299 |
High-tolerance broadband-optical switch in planar lightwave circuits
Broadband optical switches based on adiabatic couplers having a pair of asymmetric waveguides with variable curvature sections include in a 2×2 configuration based on a Mach-Zehnder interferometer...
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7221844 |
Optical waveguide circuit component and method of manufacturing the same
An optical waveguide circuit component according to the present invention is characterized by that a clad layer composed of quartz is provided on the surfaces of a substrate and core formed by...
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7218527 |
Apparatuses and methods for forming smart labels
Apparatuses and methods for forming displays are claimed. This invention relates to a display which may be conformal and which can receive information in order to alter or configure the display. In...
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7215848 |
Optical isolator utilizing a micro-resonator
An optical isolator for coupling light from a first waveguide to a second waveguide is disclosed. The optical isolator utilizes a resonator coupled to the first and second optical waveguides. The...
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7215846 |
Mode discriminating on-chip optical coupler for an optical receiver connected to dual mode/multimode fiber
A mode coupler structure includes a discriminating structure that discriminates between various incoming modes from an input optical fiber structure. A waveguide structure is coupled to the...
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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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7203422 |
Optical network unit, wavelength splitter, and optical wavelength-division multiplexing access system
In an optical wavelength division multiplexed access system, a center unit (OSU) and n optical network units (ONUs) are connected together via a wavelength splitter and optical fiber transmission...
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7200301 |
Multi-channel grating design technique
A method of improving a grating design function describing a refractive index variation defining a multi-channel grating structure in a waveguide material, the improvement being a reduced maximum...
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7197223 |
Glass fiber monitoring module
The invention relates to a glass fiber monitoring module comprising a mounting plate, couplings for receiving plugs of incoming and outgoing glass fibers and at least one coupler module being...
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7194158 |
Method for producing light-scattering structures on flat optical waveguides
A method for producing light-scattering structures on flat optical waveguides into which light can be coupled for making the light-scattering structures visible. The light-scattering structures are...
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7187827 |
Coupled waveguide optical microresonator
A coupled waveguide optical microresonator is formed from a plurality of microcylinders coupled together. Each microcylinder includes a resonant waveguide. At least one of the microcylinders is...
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