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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... |
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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... |
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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,... |
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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... |
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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... |
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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... |
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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... |
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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.... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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US20140056559 |
Resonant Waveguide-Grating Devices And Methods For Using Same
Waveguide gratings, biosensors, and methods of using a waveguide grating, including as a biosensor. |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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)... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |