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7599586 |
Integrated chip
An integrated chip for data communication, telecommunication and optical analysis for at least one, two or more wavelengths where the chip can be used not only to emit light but also to detect...
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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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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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7561325 |
Optical module
The present invention relates to an optical module that has a structure for protecting a pumping light source at a low cost. The optical module comprises an amplification optical fiber, an optical...
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7532792 |
Optical coupler, a method of its fabrication and use
An optical coupler for coupling light from at least two input fibers into one output fiber and a method of fabricating and use of an optical coupler. The coupler comprises a) an input section...
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7519240 |
Multi-section coupler to mitigate guide-guide asymmetry
A wavelength independent multi-section optical coupler having at least three optical couplers, and at least two differential phase cells. Each optical coupler has two waveguides forming a coupling...
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7515791 |
Phase matched optical grating
The invention relates to phase matched optical gratings for performing signal multiplexing and demultiplexing in optical communications networks. In prior art gratings there is a phase linearity...
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7505651 |
Optical planar wavelength selective filter and method of manufacture
An optical planar wavelength selective filter is formed on a printed circuit substrate. Low optical loss polymers are used to make a layered structure that contains waveguides and free travel...
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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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7496256 |
Diffraction grating and dispersion compensation circuit
A diffraction grating of the present invention includes a first block ( 101 ) and a second block ( 102 ). The first block ( 101 ) is made up of a plurality of input waveguides ( 103 ), a slab...
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7492993 |
Multi-port coupler, optical amplifier, and fiber laser
A multi-port coupler for coupling an pumping light source to a cladding pump fiber for optical amplification, includes a central signal fiber and a plurality of pumping fibers arranged around the...
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7474824 |
Planar lightwave filter with mixed diffraction elements
A planar lightwave circuit including a slab waveguide, with a plurality of different diffraction filtering elements optically coupling a plurality of input and output ports, provides various...
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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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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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7412124 |
Optical module with high reflection isolation and compact size
Techniques for designing optical devices with high reflection isolation are disclosed. According to one aspect of the devices, a pair of conjugate optical filters is used. To preserve the...
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7406245 |
Flat optical fiber light emitters
Light emitters are made of one or more cladded flat optical fibers having opposite flat sides and disruptions along at least a portion of the length of the fibers to cause light entering at least...
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7403682 |
Dispersion compensation apparatus
A dispersion compensation apparatus employing an arrayed-waveguide-grating (AWG) which exhibits a dispersion slope.
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7400812 |
Apparatus and methods for accommodating loops of optical fiber
Disclosed is an optical apparatus ( 10, 110, 410, 610 ) for accommodating optical fiber, such as one or more loops of optical fiber. The optical apparatus ( 10, 110, 410, 610 ) can include a body (...
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7400800 |
Arrayed waveguide grating type optical multiplexer/demultiplexer circuit
An arrayed waveguide grating type optical multiplexer/demultiplexer circuit in which wavelength dispersion is reduced. An input wave guide ( 1 ), a first slab waveguide ( 2 ), an arrayed waveguide...
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7394953 |
Configurable integrated optical combiners and decombiners
System, devices and methods are described that provide an integrated optical decombiner or optical combiner having both unamplified paths and amplified paths on which power monitoring and control...
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7389039 |
Method of managing and playing title of medium, medium, and medium drive
A method of managing and playing a title of a medium, the medium playing a deleted video title set (VTS) even after finalization of recording of a medium. The medium includes a first area recording...
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7346260 |
Optical waveguide and optical information processing device
A core layer has a light entrance region and a light exit region, said light entrance region having a width greater than said light exit region. The light entrance region has at least a side...
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7343070 |
Optical splitter with tapered multimode interference waveguide
A 1×2 splitter design having low loss is described. The splitter has a non-adiabatic tapered waveguide ( 22 ) connected between a substantially single-mode input waveguide ( 20 ) and two output...
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7330618 |
Waveguide structure
An improved waveguide structure employing blocks of waveguide core material positioned sufficiently close to a waveguide core thereby eliminating strain effects and its resulting undesirable...
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7317851 |
Optical add/drop patch cord
An optical add/drop patch cord. The optical add/drop patch cord has an optical add/drop component enclosed by a casing. An input fiber is optically coupled to the optical add/drop component and...
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7315675 |
Method, and article of the method, for fabricating a flexible, hollow waveguide
A flexible, hollow, waveguide is featured, that functions in the visible region. The waveguide comprises a hollow, flexible, silica-glass tube having a smooth bore, that is coated with a reflective...
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7311450 |
Color optical link using transparently jacketed plastic optical fiber and method for achieving the same
Disclosed is a color optical link using a transparently jacketed plastic optical fiber that optically transmits data and uses light, scattered and emitted to the outside, for the purpose of...
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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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7283709 |
Integrated microelectromechanical wavelength selective switch and method of making same
A fully integrated microelectromechanical (MEMS) lxK wavelength selective switch (WSS) includes an array of N solid-immersion micromirrors (SIMs) and a K+1 dispersion waveguide arrays that are...
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7280722 |
Temperature compensated optical multiplexer
An optical multiplexer that adjusts the wavelength response and compensates for temperature effects by using rotatable mirror. The wavelength response of the device is adjusted by aligning the...
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7272276 |
Optical performance monitor
An optical performance monitor for measuring the performance of optical networks has an echelle grating for demultiplexing an input beam into a plurality of wavelengths that are focused onto an...
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7257285 |
Wavelength-selective switch and integrated wavelength demultiplexer using stacked planar lightwave circuits
Wavelength-selective switches (WSSs) having embedded multiplexer or demultiplexer functionality include a stack of planar waveguide circuits (PLCs) in which all but one of the PLCs have identical...
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7248767 |
Multimode optical fiber coupler and fabrication method
The present invention relates to a surface interaction type multimode optical fiber coupler. A representative embodiment of the present invention comprises a plurality of optical fibers with at...
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7245793 |
Optical waveguide circuit
An optical waveguide circuit includes a first loss component for causing a diffraction loss of light propagating through an optical waveguide, and a second loss component provided at least one of...
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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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7215852 |
Method and apparatus for mode conversion
Spot-size conversion for interfacing a first optical element having a higher refractive index to a second optical element having a lower refractive index is achieved through the use of two optical...
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7187817 |
Awg coupler for separating electromagnetic radiation of various wavelength regions, and a telecommunications system
A single free-beam region for coupling electromagnetic radiation in and out is provided in order in the case of an AWG coupler for spectrally separating electromagnetic radiation to achieve a more...
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7174071 |
Arrayed waveguide grating with increased uniformity of a performance parameter
An arrayed waveguide grating (AWG) device comprising a substrate having a first array of waveguides optically coupled between first and second slab couplers and a second array of input-output...
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7171097 |
Hex tube light homogenizer splitter
A right angle light diverter includes a hexagonal tube that is bent at a right angle that is coated with a highly reflective coating on the inside surface. An incoming light beam may be homogenized...
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7149387 |
Double diffraction grating with flat passband output
The invention relates to a double-grating subtractive-dispersion optical channel multiplexer/demultiplexer for combining or separating optical channels and providing the output channels with a...
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7113684 |
Hex tube light homogenizer splitter
A right angle light diverter includes a hexagonal tube that is bent at a right angle that is coated with a highly reflective coating on the inside surface. An incoming light beam may be homogenized...
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7106930 |
Dynamic optical demultiplexer/multiplexer formed within a PLC
A demultiplexer/multiplexer is disclosed wherein an arrayed waveguide grating having a reflector at an end includes selectable signal path blockers. The arrayed waveguide device has a common...
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7099959 |
Network comprising a plurality of network nodes and at least one star node
The invention relates to a network comprising a plurality of network nodes. At least part of the network nodes are directly intercoupled via at least one star node. The star node contains a...
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7068888 |
Efficient waveguide arrays with optimized matching transitions
An optical interconnection apparatus including waveguide arrays such as waveguide lenses, waveguide gratings and star couplers, has improved efficiency realized using a periodic array combined with...
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7065273 |
Wideband arrayed waveguide grating
A flat-top arrayed waveguide grating with wideband transmission spectrum may be produced by integrating a series of directional couplers to the output slab waveguide coupler of a dual...
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7058262 |
Arrayed waveguide grating
An arrayed waveguide grating (AWG) device is described in which there are a plurality of output waveguides ( 10 ) coupled at one end to the output side of an second optical interaction region ( 4 )...
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7046877 |
Optical module
An optical module has first and second optical parts. Each of the optical parts has an optical path extending in a longitudinal direction and an end face intersecting the optical path. The end face...
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7039274 |
Light signal transmitting device and signal processing device
In a device of the present invention for allowing signal light to enter a light guide body using an optical fiber, a light guide body, which is constituted by dispersing particles for scattering...
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7031579 |
High resolution display component, system and method
An optical system provides a higher resolution image, especially for use with a projection system, using a combiner formed of fiber optics each having an input end and an output end, with the fiber...
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7016568 |
Arrayed waveguide grating with increased uniformity of a performance parameter
An arrayed waveguide grating (AWG) device ( 1 ) comprising a substrate having a first array of waveguides ( 8 ) optically coupled between first and second slab couplers ( 3, 4 ) and a second array...
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