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US20060008207 |
Polarization splitting grating couplers
A polarization splitting grating coupler (PSGC) connects an optical signal from an optical element, such as a fiber, to an optoelectronic integrated circuit. The PSGC separates a received optical... |
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US20050031264 |
Fiber optic devices having volume Bragg grating elements
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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US20100322559 |
PLANAR OPTICAL WAVEGUIDE ELEMENT, CHROMATIC DISPERSION COMPENSATOR, OPTICAL FILTER, OPTICAL RESONATOR AND METHODS FOR DESIGNING THE ELEMENT, CHROMATIC DISPERSION COMPENSATOR, OPTICAL FILTER AND OPTICAL RESONATOR
There is provided a planar optical waveguide element in which an optical waveguide comprises a core, and a gap portion that is positioned in a center of a width direction of the core so as to... |
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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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US20150185413 |
HIGHLY EFFICIENT OPTICAL GRATINGS WITH REDUCED THICKNESS REQUIREMENTS AND IMPEDANCE-MATCHING LAYERS
An optical grating comprising a grating layer and two surface layers, the layers being arranged with the grating layer between the surface layers. The grating layer comprises a set of multiple,... |
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US20050129363 |
Arrayed waveguide grating with waveguides of unequal widths
The present invention provides an arrayed waveguide such that each waveguide of the grating has a substantially uniform width, but the width of any single waveguide in the grating is selected... |
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US20150140556 |
OPTICAL FIBER WITH GRATING AND PARTICULATE COATING
The present invention provides, in addition to other things, methods, systems, and apparatuses that involve the use of an optical fiber with grating and particulate coating that enables... |
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US20100092128 |
Optical Transceiver module
An optical transceiver module includes a semiconductor laser that emits light along a first optical axis. A grating coupler, located in a plane including the first optical axis, diffracts the... |
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US20080193085 |
MULTIMODE LONG PERIOD FIBER BRAGG GRATING MACHINED BY ULTRAFAST DIRECT WRITING
An optical fiber with an integral photonic crystal structure. The optical fiber core is formed of a non-photosensitive material having an initial index of refraction. The optical fiber core... |
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US20080159692 |
Devices Based on Optical Waveguides with Adjustable Bragg Gratings
A system for filtering light propagating in a waveguide is described. The system utilizes an adjustable periodic grating which induces mode coupling of predetermined frequencies of light... |
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US20050254752 |
Switchable optical components
This invention relates to a number of components, devices and networks involving integrated optics and/or half coupler technology, all of which involve the use of electronically switchable Bragg... |
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US20090290837 |
OPTICAL DEVICES FOR COUPLING OF LIGHT
An optical device and an optical system are provided for coupling of light. The optical device comprises a planar substrate; and an optical waveguiding layer disposed on the planar substrate. The... |
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US20070160321 |
MONOLITHIC MEMS-BASED WAVELENGTH-SELECTIVE SWITCHES AND CROSS CONNECTS
Wavelength-selective 1×N switches (WSSs) and N×N cross-connects (WSXCs) are described which are fabricated as monolithic or hybrid devices. In a preferred embodiment, the optic ports, dispersion... |
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US20110142396 |
ATHERMAL SILICON PHOTONICS ARRAY WAVEGUIDE GRATING (AWG) EMPLOYING DIFFERENT CORE GEOMETRIES IN THE ARRAY WAVEGUIDES
A silicon photonics array waveguide grating (AWG), and methods of their manufacture, including a plurality of silicon photonics array waveguides running from at least one of an input and output... |
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US20110249938 |
OPTICAL GRATING COUPLER
An apparatus includes a crystalline inorganic semiconductor substrate. A planar optical waveguide core is located over the substrate such that a first length of the planar optical waveguide core... |
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US20070201793 |
MULTI-CORE OPTICAL FIBER AND METHOD OF MAKING AND USING SAME
The apparatus includes a fiber comprising an axial center, a central single-mode waveguiding core and a plurality of peripheral single-mode waveguiding cores. The central core is located at a... |
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US20120155805 |
MULTI-CORE OPTICAL CABLE TO PHOTONIC CIRCUIT COUPLER
An optical device includes a substrate and a plurality of three or more planar waveguides formed over the substrate. Each planar waveguide includes a corresponding grating coupler formed therein.... |
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US20060239612 |
Flip-chip devices formed on photonic integrated circuit chips
Various embodiments include optically aligning and connecting optical devices to optical grating couplers using a variety of bonding techniques, as a means of transferring optical signals to and... |
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US20070196048 |
Optical waveform shaping
A fiber including a fiber grating and at least one refractive index modifier interfacing the fiber grating, the at least one refractive index modifier selectively introducing a refractive-index... |
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US20070116402 |
Humidity sensor and method for monitoring moisture in concrete
A humidity sensor and method is disclosed. The sensor is configured as an optical fiber based sensor and may be useful in obtaining moisture information, such as humidity and/or relative humidity... |
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US20080089646 |
Arrayed waveguide grating device
A grating device has a waveguide array cyclically arranged. A horned waveguide is used in a star coupler of the grating device. An optical signal is divided into streams. The streams are slanted... |
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US20150117817 |
OPTICAL DEVICE FOR REDIRECTING INCIDENT ELECTROMAGNETIC WAVE
An optical device for redirecting an incident electromagnetic wave includes an interference region having a first side and a second side opposite to the first side; a grating structure arranged on... |
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US20120275746 |
Highly efficient optical gratings with reduced thickness requirements and impedance-matching layers
An optical grating comprising a grating layer and two surface layers, the layers being arranged with the grating layer between the surface layers. The grating layer comprises a set of multiple,... |
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US20070237451 |
MULTI-UNIT PLANAR LIGHTWAVE CIRCUIT WAVELENGTH DISPERSIVE DEVICE
A multi-unit wavelength dispersive optical device includes a plurality of independent planar lightwave circuit (PLC) wavelength dispersive optical devices in a single device in which a plurality... |
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US20070160325 |
Angle-tunable transmissive grating
A tunable transmissive grating comprises a transmissive dispersive element, a reflective element, and an angle θ formed between the two elements. A first optical path is formed according to the... |
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US20070041683 |
Tunable Optical Filter
A tunable optical filter includes a demultiplexing device, such as an arrayed waveguide grating (AWG) or echelle grating, for separating a multiplexed optical signal into a plurality of... |
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US20100316328 |
Fiber optic position transducer with magnetostrictive material and position calibration process
Fiber optic position transducer that includes a magnetic or electromagnetic element, one or more segments of magnetostrictive material, Fiber Bragg Grating Sensors, a rod of material that is... |
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US20060159395 |
Optical compensator array for dispersive element arrays
An array of dispersive arrangements, for example an array of waveguide dispersive elements, is compensated with a set of optical compensators such as wedges or pairs of cylindrical lenses. The... |
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US20060013523 |
Fiber optic position and shape sensing device and method relating thereto
The present invention is directed toward a fiber optic position and shape sensing device and the method of use. The device comprises an optical fiber means. The optical fiber means comprises... |
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US20050259919 |
Optical connector arrangement
One aspect of the intention provides an optical connector arrangement (100). The optical connector arrangement (100) comprises a connector component (114) embedded in a substrate material (130).... |
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US20050018944 |
Polarization modulation interrogation of grating-coupled waveguide sensors
An optical interrogation system and a GCW sensor are described herein that are used to determine whether a biological substance (e.g., cell, molecule, protein, drug) is located in a sensing region... |
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US20050226560 |
Apparatus for manufacturing chiral fiber bragg gratings
An apparatus is disclosed for manufacturing chiral fibers having chiral fiber Bragg gratings properties from UV sensitive optical fibers, by using a UV laser beam to impose a chiral modulation of... |
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US20160124223 |
VIRTUAL IMAGE DISPLAY APPARATUS
A virtual image display apparatus includes a first light guide that not only causes a display light flux incident through a first light incident surface to repeatedly undergo internal reflection... |
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US20100158524 |
UPSTREAM SOURCE LIGHT GENERATOR OF PASSIVE OPTICAL NETWORK SYSTEM AND METHOD OF GENERATING UPSTREAM SOURCE LIGHT
Provided is an upstream source light generator of a passive optical network (PON) system. The upstream source light generator includes an amplification part configured to amplify injection light,... |
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US20160033784 |
Optical Components
Various optical components are disclosed herein, which have diffraction gratings formed by modulations of at least portions of their outer surfaces. The gratings exhibit gradually varying... |
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US20060291768 |
OPTICAL FIBER SENSORS BASED ON PRESSURE-INDUCED TEMPORAL PERIODIC VARIATIONS IN REFRACTIVE INDEX
A optical fiber sensor for measuring temperature and/or pressure employs temporally created long period gratings. The gratings may be produced by a periodic change in the refractive index of the... |
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US20050147348 |
Hitless variable-reflective tunable optical filter
A variable-reflective tunable optical filter includes an interferometer adapted to control the powers of added or dropped signals and an optical waveguide grating to select the wavelength channels... |
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US20100158438 |
Fiber Optic Diffraction Grating
The present invention is directed to an optical fiber grating having a core, that is capable of controlling the light signal transmission therethrough by causing at least one of: at least one... |
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US20060067616 |
Pseudo slant fiber bragg grating, multiple series fiber bragg grating, optical fiber type coupler and optical connector
An optical fiber 4 having a clad diameter of 125 μm is made by adding Ge to a core 41 having a core diameter of 8 μm and a relative refractive index difference of 0.3 %, and two refractive index... |
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US20160116680 |
LIGHT COUPLING STRUCTURE AND OPTICAL DEVICE INCLUDING A GRATING COUPLER
Light-coupling structure including a grating coupler that is configured to optically couple with an optical element. The grating coupler has a diffraction grating that extends parallel to a... |
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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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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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US20070098324 |
Optical multiplexer and projection type display device incorporating same
There is provided an optical multiplexer which includes a plurality of light sources to emit light beams having respective different wavelengths, and a diffraction grating to reflect the light... |
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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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US20090097122 |
Diffractive Optical Device and System
An optical relay device for transmitting light striking the optical relay device at a plurality of angles within a field-of-view is provided. The device comprises a light-transmissive substrate,... |
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US20050232541 |
Optical fiber sensor based on retro-reflective fiber bragg gratings
A retro-reflective sensor for sensing mechanical, chemical or temperature related information, is disclosed. The sensor is formed of an optical waveguide suitable for use in-situ in a high... |
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US20160054216 |
FIBER DELIVERY FOR LASER BOND INSPECTION
Methods, systems, and apparatuses are disclosed for fiber delivery of a laser pulse used in laser bond inspection. In one embodiment, a system for fiber delivery of a laser pulse for laser bond... |
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US20140086531 |
OPTICAL FILTER HAVING SINGLE REFLECTING TOTAL INTERNAL REFLECTION ECHELLE GRATING FILTER AND OPTICAL WAVEGUIDE DEVICE INCLUDING THE SAME
An optical filter of the inventive concept includes a slab waveguide disposed on a substrate, an input guide gate and an output guide gate spaced apart from each other in the slab waveguide, and... |
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US20120106893 |
GRATING INSCRIBING IN OPTICAL WAVEGUIDES
There is described herein a method and system for inscribing gratings in optical waveguides. The waveguides may be hydrogen-free, germanium-free, low germanium, low hydrogen, and a combination... |
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US20110013868 |
OPTICAL WAVEGUIDE FOR VISIBLE LIGHT
The present invention relates to an optical waveguide for visible light guide containing an optical waveguide layer, at least one light entering part and at least one light exiting part, the light... |