Matches 1 - 50 out of 411 1 2 3 4 5 6 7 8 9 >


Match Document Document Title
US20140084148 OPTICAL-QUALITY COVER FOR USE WITH AN OPTICAL COUPLING SYSTEM, AND AN OPTICAL COMMUNICATIONS MODULE THAT INCORPORATES THE OPTICAL-QUALITY COVER  
In an optical communications module, an optical-quality (O-Q) cover is provided for use with an optical coupling system for protecting a diffractive grating of the optical coupling system from...
US20110069928 Assembly for Applying a Temperature Gradient to a Refractive Index Grating and Chromatic Dispersion Compensator  
A power efficient assembly is provided for applying a temperature gradient to a Fiber Bragg grating. The assembly includes inner and outer enclosures, the outer enclosure defining an insulation...
US20140233891 HIGH EFFICIENCY MONO-ORDER CONCAVE DIFFRACTION GRATING  
A concave diffraction grating for integrated optics is constructed by replacing the reflective metallic part by either multiple thin elements of metal or multiple elements of dielectric material,...
US20130136396 GRATING COUPLER  
Disclosed is a grating coupler which includes an optical waveguide transferring an optical signal; and a diffraction grating formed on the optical waveguide. The diffraction grating includes...
US20130301988 POLARIZATION-INSENSITIVE OPTICAL FILTER WHICH HAS RESONANT GRATINGS AND IS ADJUSTABLE ACCORDING TO THE INCIDENCE ANGLE  
The invention relates to a polarization-insensitive optical filter centered on a wavelength (λ0) measured in vacuum, comprising: first and second waveguides each having a propagation mode; a first...
US20120207428 METHODS AND SYSTEMS FOR REDUCING POLARIZATION DEPENDENT LOSS  
A photonics integrated circuit for processing radiation includes a first-dimensional grating coupler for coupling in radiation, a second two-dimensional grating coupler for coupling out radiation...
US20130343704 COMPACT MODE-SIZE TRANSITION USING A FOCUSING REFLECTOR  
Disclosed herein are techniques, methods, structures and apparatus for optically coupling optical waveguides and optical structures exhibiting different widths in which In which a focusing...
US20130315526 SINGLE-LAYER FULL-MESH, POINT-TO-POINT NETWORK  
An MCM may include a single optical routing layer that provides point-to-point connectivity among N chips in the MCM, such as all-to-all connectivity or full-mesh point-to-point connectivity....
US20140314374 GRATING COUPLERS WITH DEEP-GROOVE NON-UNIFORM GRATINGS  
Grating couplers that enable efficient coupling between waveguides and optical fibers are disclosed. In one aspect, a grating coupler includes a transition region that includes a wide edge and...
US20100014809 OPTICAL STRUCTURE WRITING SYSTEM  
The present invention relates to a system for writing an optical structure in a waveguide. The system including, means for splitting a light beam into two coherent writing beams, an optical...
US20150219843 AVOIDING BEAM OBSTRUCTION DURING INSCRIPTION OF FIBER GRATINGS  
The present disclosure provides systems and methods for avoiding beam obstructions during inscription of fiber gratings. For some embodiments, an optical fiber is re-oriented during fiber...
US20120189249 Single-Stage 1x5 Grating-Assisted Wavelength Division Multiplexer  
A single-stage 1×5 grating-assisted wavelength division multiplexer is provided. A grating-assisted asymmetric Mach-Zehnder interferometer, a plurality of grating-assisted cross-state directional...
US20140023319 TRANSPARENT DIFFUSER FOR LIGHTING AND METHODS OF MANUFACTURING TRANSPARENT DIFFUSER  
A light diffuser panel for coupling to an optical element, includes a substrate with a first surface that is diffusive to a plurality of wavelengths of light and a second surface, wherein the...
US20140023317 TRANSPARENT DIFFUSER FOR LIGHTING AND METHODS OF MANUFACTURING TRANSPARENT DIFFUSER  
A light diffuser panel for coupling to an optical element, includes a substrate with a first surface that is diffusive to a plurality of wavelengths of light and a second surface, wherein the...
US20120099817 High Quality Factor Photonic Crystal Nanobeam Cavity and Method of Designing and Making Same  
A deterministic design and manufacturing of an ultrahigh Q-factor, wavelength-scale optical cavity is invented and experimentally demonstrated. The design can be implemented on photonic crystal...
US20150086163 OPTICAL WAVEGUIDES  
An optical waveguide (2) arranged to transmit light under total internal reflection has a first diffractive grating region (8) arranged to receive light and diffract the received light along the...
US20140056559 Resonant Waveguide-Grating Devices And Methods For Using Same  
Waveguide gratings, biosensors, and methods of using a waveguide grating, including as a biosensor.
US20140233889 INDEX MATCHED GRATING INSCRIPTION  
The disclosed embodiments provide systems and methods for mitigating lensing and scattering as an optical fiber is being inscribed with a grating. The disclosed systems and methods mitigate the...
US20060233492 Optical beam combiner/concentrator  
A non-imaging optical collecting and concentrating apparatus for use in i.e., optical communications, passive lighting, and solar power applications that is relatively immune from optical...
US20130121639 OPTICAL INTERCONNECT STRUCTURE  
The present invention is an optical interconnect structure characterized by that it comprises an optical waveguide comprising a first core and a connective optical waveguide which is formed on the...
US20120027347 GRATING COUPLED CONVERTER  
A chip includes a grating coupler and an optoelectronic converter. The grating coupler is patterned to extract a first fraction of incident light and to transmit a second fraction of the incident...
US20120045172 GRATING COUPLER AND PACKAGE STRUCTURE INCORPORATING THE SAME  
A method for removing phosphorus and nitrogen from an activated sludge wastewater treatment system is provided consisting of one or more anaerobic zones followed by two or more activated sludge...
US20140233890 INDEX MATCHED GRATING INSCRIPTION  
The disclosed embodiments provide systems and methods for mitigating lensing and scattering as an optical fiber is being inscribed with a grating. The disclosed systems and methods mitigate the...
US20140233888 INDEX MATCHED GRATING INSCRIPTION  
The disclosed embodiments provide systems and methods for mitigating lensing and scattering as an optical fiber is being inscribed with a grating. The disclosed systems and methods mitigate the...
US20150260994 OPTICAL DEVICE, HEAD MOUNTED DISPLAY, ASSEMBLING METHOD FOR THE SAME, HOLOGRAPHIC DIFFRACTION GRATING, DISPLAY DEVICE, AND ALIGNMENT DEVICE  
In some embodiments, a head mounted display is provided, comprising a light guide, at least first and second diffraction gratings, alignment marks A1 and B1 associated with the first diffraction...
US20140327970 SPHERICAL INTERFACE FOR BINOCULAR DISPLAY  
A binocular display includes a waveguide. A convex spherical mount has a fixed position relative to the waveguide. A light engine includes a concave spherical mount that adjustably mates with the...
US20130272656 Double-Sided Compression-Tuned Fiber Bragg Grating  
A new type of tunable fiber Bragg grating (FBG) is proposed based on the compression of FBG from both sides. In this technique, the FBG is compressed from both sides simultaneously which provides...
US20110229080 OPTICAL DEVICE WITH ATHERMAL SLOTS FOR TEMPERATURE DEPENDENCE CURVATURE REDUCTION  
In one aspect of the invention, roughly stated, Applicants have discovered that a compensation material within slot elongated in a direction parallel to a segment of waveguide in an arrayed...
US20100303411 DEVICE FABRICATION WITH PLANAR BRAGG GRATINGS SUPPRESSING PARASITIC EFFECTS  
The present invention relates to various methods of fabricating Planar Bragg Gratings (PBG) in a doped waveguide in a Planar Lightwave Circuit (PLC) device, suppressing unwanted parasitic grating...
US20140029894 OPTICAL ASSEMBLY WITH DIFFRACTIVE OPTICAL ELEMENT  
An optical assembly comprising: (a) a crystalline substrate having a top planar surface and a crystalline plane angle; (b) at least one groove defined in the top planar surface and having side...
US20130163927 BIREFRINGENT MICRO-STRUCTURED OPTICAL FIBER FOR SENSOR APPLICATION  
Fiber structure including a core and a cladding, a central microstructure having a first plurality of longitudinal holes and which is adapted for guiding optical radiation and for birefringence in...
US20120224811 BIREFRINGENT MICRO-STRUCTURED OPTICAL FIBER FOR SENSOR APPLICATION  
Fiber structure including a core and a cladding, a central microstructure having a first plurality of longitudinal holes and which is adapted for guiding optical radiation and for birefringence in...
US20150023389 OPTICAL FIBER FOR TEMPERATURE SENSOR AND A POWER DEVICE MONITORING SYSTEM  
An optical fiber for a temperature sensor and a power device monitoring system that can measure temperatures at different measurement positions by a simple construction are provided. An optical...
US20140147079 COUPLING OF FIBER OPTICS TO PLANAR GRATING COUPLERS  
Techniques, methods, structures and apparatus that provide the efficient coupling of light to/from one or more optical fibers to/from planar grating waveguide couplers positioned on photonic...
US20110262073 THERMALLY TUNABLE FIBER OPTIC DEVICE  
Improvements relating to thermally tunable fiber optical devices have been disclosed. In one aspect, a thermally tunable fiber Bragg grating device is provided with one or more heaters to (3a, 3b)...
US20100329603 STRUCTURE AND METHOD FOR ALIGNING AN OPTICAL FIBER AND A SUBMICRONIC WAVEGUIDE  
An integrated optical circuit including an operational submicronic waveguide associated with an operational grating intended for the coupling with an optical fiber, further including an alignment...
US20120128301 Method For Writing High Power Resistant Bragg Gratings Using Short Wavelength Ultrafast Pulses  
A method for writing a Bragg grating in a rare-earth doped glass optical waveguide is provided. Ultrafast optical pulses are generated, preferably in the femtosecond range and having a writing...
US20130343705 CLADDING DEFINED TRANSMISSION GRATING  
Disclosed herein are techniques, methods, structures and apparatus for providing photonic structures and integrated circuits with optical gratings disposed within cladding layer(s) of those...
US20120281949 Mach-Zehnder Wavelength Division Multiplexer Having Flat Passband and Low Crosstalk  
A Mach-Zehnder wavelength division multiplexer (WDM) is provided. The WDM has a short length with flat passband and low crosstalk. Since passband is flattened, crosstalk is reduced and length of...
US20120027350 OPTICAL WAVEGUIDE COUPLING DEVICE AND ASSOCIATED METHODS  
The present disclosure provides optical waveguide coupling devices and associated methods. In one example, an optical waveguide coupling device can comprise a dielectric grating coupler, a first...
US20120155806 MULTI-CORE OPTICAL CABLE TO PHOTONIC CIRCUIT COUPLER  
An optical device includes an array of optical grating couplers and a plurality of single-core fiber couplers located over a planar substrate. The optical grating couplers of the array are located...
US20120170891 OPTICAL WAVELENGTH MULTI/DEMULTIPLEXER  
An optical wavelength multi/demultiplexer having transmission characteristics with a higher rectangular degree than a conventional one includes an AWG and two-stage lattice circuit. An example of...
US20100322555 Grating Structures for Simultaneous Coupling to TE and TM Waveguide Modes  
Disclosed are an integrated optical coupler, and a method of optically coupling light, between an optical element and at least one integrated optical waveguide. The optical coupler includes a...
US20110008002 ARRAYED-WAVEGUIDE-GRATING-TYPE OPTICAL MULTIPLEXER/DEMULTIPLEXER  
A multiplexer/demultiplexer includes: a waveguide chip including a first chip and a second chip that are divided by a plane and obtained by cutting, together with a substrate, in a direction...
US20140044392 SUB-WAVELENGTH GRATING-BASED OPTICAL ELEMENTS  
Planar, polarization insensitive, optical elements to control refraction of transmitted light in free space are disclosed. In one aspect, an optical element includes a substrate having a planar...
US20130209036 OPTICAL WAVEGUIDE AND ARRAYED WAVEGUIDE GRATING  
An optical waveguide provided with a slab waveguide, which has a plurality of phase gratings arranged at a distance from each other in a direction substantially parallel to a light propagation...
US20110085761 ARRAYED WAVEGUIDE GRATING AND METHOD OF MANUFACTURING ARRAYED WAVEGUIDE GRATING  
An arrayed waveguide grating includes: at least one first waveguide; a first slab waveguide connected to the at least one first waveguide; a plurality of second waveguides; a second slab waveguide...
US20110102777 DIFFRACTION GRATING COUPLER, SYSTEM AND METHOD  
A diffraction grating coupler which includes an optical waveguide having a first surface and a second surface opposing the first surface, the optical waveguide having a grating on one of its...
US20120044572 OPTICAL WAVEGUIDES  
An optical waveguide comprising a body of material configured for the contained propagation of light therethrough, a surface relief grating configured to receive the propagating light and at least...
US20120251047 MACH-ZEHNDER INTERFEROMETER-ARRAYED WAVEGUIDE GRATING AND PLANAR LIGHT-WAVE CIRCUIT CHIP  
The present invention provides a Mach-Zehnder interferometer-arrayed waveguide grating (MZI-AWG) and a planar light-wave circuit chip in which a certain number of chips can be secured without...

Matches 1 - 50 out of 411 1 2 3 4 5 6 7 8 9 >