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| Application No. | Application Title | Issue Date |
| 20120128301 | 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 wavelength in the range of 300 nm to 700 nm and an intensity sufficient to in... | 05/24/2012 |
| 20120106893 | 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 thereof. Such gratings written in hydrogen-free fibers are suitable for senso... | 05/03/2012 |
| 20120082415 | BRAGG GRATING FIBER HYDROPHONE WITH A BELLOWS AMPLIFIER A Bragg grating fiber hydrophone, includes a fluid chamber and an optical fiber in which a Bragg grating is integrated, the optical fiber passing through the fluid chamber along a longitudinal axis such that the Bragg grating is positioned inside the latter. The fluid c... | 04/05/2012 |
| 20120081696 | DISTRIBUTED OPTICAL CHEMICAL SENSOR The invention relates to a sensor system comprising a waveguide, which waveguide comprises a grating in at least a part of the waveguide, which waveguide further comprises a coating, the coating comprising a polymer, which polymer comprises a chain, in which chain are p... | 04/05/2012 |
| 20120082016 | OPTICAL WAVEGUIDE AND THERMALLY-ASSISTED MAGNETIC RECORDING HEAD THEREWITH An optical waveguide of the invention includes a core that is a waveguide through which light propagates; and a cladding that surrounds the core. The core has a plate shape and includes a wide core base part onto which the light is incident, a taper part that is connect... | 04/05/2012 |
| 20120045172 | 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 reactors operating in parallel each having independent aeration/mixing means... | 02/23/2012 |
| 20120044572 | 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 partially to diffract or reflect it out of the waveguide, and at least on... | 02/23/2012 |
| 20120045173 | Coherent Optical Detector Having a Multifunctional Waveguide Grating A coherent optical detector having a waveguide circuit, in which a plurality of waveguides are connected to a waveguide grating. In a representative embodiment, the waveguide grating serves at least three different functions, e.g., those of a fiber-optic coupler, a pola... | 02/23/2012 |
| 20120039567 | MULTIPULSE SYSTEM FOR WRITING WAVEGUIDES, GRATINGS, AND INTEGRATED OPTICAL CIRCUITS The present invention provides a direct laser writing fabrication method and system for devices having periodic refractive index modulation structures, for example, Bragg gratings. By focusing a modulated pulsed laser beam into a transparent material substrate, a path o... | 02/16/2012 |
| 20120039568 | In-Plane Optical Metrology A structure that is located adjacent to a measurement target on a substrate is used to convert incident radiation from an optical metrology device to be in-plane with the measurement target. The structure may be, e.g., a grating or photonic crystal, and may include a wa... | 02/16/2012 |
| 20120033217 | METHOD AND APPARATUS FOR DETECTING MULTIPLE OPTICAL WAVE LENGTHS Optical gratings that perform a number of functions at various wavelengths are formed by various methods that preserve spectral information within a wavelength band, the functions including: coupling radiation from one waveguide (7a3) to another ( 02/09/2012 | |
| 20120033306 | OPTICAL WAVEGUIDE AND DISPLAY DEVICE In a slab waveguide which expands an image-bearing pupil into a visible image, reflective edge surfaces are used to redirect once-diffracted light back through the same grating structure. The number of separate grating structures thereby can be reduced to two or even on... | 02/09/2012 |
| 20120027350 | 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 optical waveguide attached to a first surface of the dielectric grating cou... | 02/02/2012 |
| 20120027349 | LENS A lens is described which includes a substrate having a first side and an opposite second side. A first guided mode resonance grating is supported by the first side of the substrate and a second guided mode resonance grating is supported by the second side of the substr... | 02/02/2012 |
| 20120027348 | Optical Apparatus for Forming a Tunable Cavity An optical apparatus includes an optical fiber formed of a core surrounded by cladding, in which the optical fiber includes an end portion. In addition, an optical layer composed of a material having a relatively high refractive index is positioned on the end portion, i... | 02/02/2012 |
| 20120027347 | 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 light as an output optical signal from the chip. The optoelectronic conver... | 02/02/2012 |
| 20120014644 | Optical router with nearly ideal performance An optimized planar optical router consisting of two stages performing stationary imaging between an input waveguide and a set of output waveguides has advantages of reduced size, larger number of channels and minimal loss variation in each passband. The new router is a... | 01/19/2012 |
| 20120002922 | OPTICAL MULTIPLEXER/DEMULTIPLEXER A polarization-independent optical multiplexer/demultiplexer with wide passbands has a core including an input optical waveguide, an input slab optical waveguide connected to the input optical waveguide, a waveguide array connected to the input slab optical waveguide, a... | 01/05/2012 |
| 20110299812 | 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 circuit for directing the writing beams along substantially the same optical pat... | 12/08/2011 |
| 20110286700 | Extension of steps in reflective optical gratings An optical device includes a light-transmitting medium positioned on a base. The light-transmitting medium at least partially defines a free propagation region through which light signals travel. A reflective grating includes stepped reflecting surfaces positioned such ... | 11/24/2011 |
| 20110274393 | Erasable Ion Implanted Optical Couplers Erasable ion implanted optical couplers are described. In one example a method includes implanting ions into a substrate to form a grating in a waveguide of an optical device coupling optical signals into and out of the waveguide and through the grating, and annealing t... | 11/10/2011 |
| 20110268389 | TILED BRAGG GRATING AND LASER SYSTEMS THEREFROM A tiled Bragg grating (BG) includes a plurality of BGs that are paralleled and optically contacted to one another. Each BG includes an optically transparent substrate within a predetermined wavelength or wavelength range having a length dimension and a transverse dimens... | 11/03/2011 |
| 20110262073 | 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) produce a desired temperature profile along t... | 10/27/2011 |
| 20110255824 | 3-D WAVEGUIDE COUPLING DEVICE CAPABLE OF TWO-STEP COUPLING AND MANUFACTURE METHOD THEREOF The present invention relates to a 3-D waveguide coupling device capable of two-step coupling and a manufacture method thereof, the 3-D waveguide coupling device comprises: a first substrate, at least one waveguide layer, at least one assisting grating, at least one cou... | 10/20/2011 |
| 20110249938 | 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 is directly on the substrate. A regular array of optical scattering structu... | 10/13/2011 |
| 20110242670 | WAVEGUIDES A waveguide 112 includes a substrate of material 134 having optical layers 148,152 applied to two external surfaces 146, 150. This reduces the critical angle c5 of the substrate of material 134 to provide greater interac... | 10/06/2011 |
| 20110243175 | SEGMENTED DISTRIBUTED FEEDBACK LASER The present invention provides for a semiconductor laser having a narrow linewidth and low power consumption for optical communication applications. According to various embodiments of the invention, a semiconductor laser is provided which includes a grating layer compr... | 10/06/2011 |
| 20110235179 | WAVEGUIDES An image-providing light source device 58 is arranged to inject a non-coherent and collimated image into waveguide element 60. Light forming the image is dispersed by an optical element 76 so as to occupy a continuum of angles within the waveguide <... | 09/29/2011 |
| 20110229080 | 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 waveguide grating apparatus can compensate for both first and second order chang... | 09/22/2011 |
| 20110229079 | OPTICAL SEMICONDUCTOR DEVICE AND METHOD FOR FABRICATING THE OPTICAL SEMICONDUCTOR DEVICE An optical semiconductor device, includes: a plurality of first diffraction grating layers disposed at a spacing from each other along first direction above first semiconductor layer, length of a lower surface of each of a plurality of first diffraction gratings along f... | 09/22/2011 |
| 20110206318 | Optical router with stationary response and increased number of channels A planar optical router consisting of two stages performing stationary imaging has advantages of reduced size, increased number of channels and reduced crosstalk. In one embodiment, each stage of the router includes a waveguide grating, and the router produces several s... | 08/25/2011 |
| 20110200285 | COATED WAVEGUIDE FOR OPTICAL DETECTION The invention relates to a waveguide, comprising a grating in at least a part of the waveguide, which waveguide comprises a coating, the coating comprising a polymer, which polymer comprises an aliphatic chain, which aliphatic chain is provided with hydrophilic side-cha... | 08/18/2011 |
| 20110188808 | OPTICAL COUPLING METHOD An optical coupling device for coupling a light beam into a waveguide and a method of manufacturing the device. The device includes a grating portion having a plurality of essentially straight and essentially parallel scattering elements, wherein two or more of the scat... | 08/04/2011 |
| 20110188807 | Hybrid Guided-Mode Resonance Filter And Method Employing Distributed Bragg Reflection A hybrid guided-mode resonance (GMR) grating, an optical filter and a method of optical filtering employ distributed Bragg reflection. The hybrid GMR grating includes a waveguide layer that supports a GMR having a GMR resonant frequency. The hybrid GMR grating further i... | 08/04/2011 |
| 20110188806 | OPTICAL MULTIPLEXER/DEMULTIPLEXER SYSTEMS CONFIGURED WITH NON-PERIODIC GRATINGS Embodiments of the present invention are directed to multiplexer/demultiplexer systems. In one aspect, a multiplexer/demultiplexer system includes an input/output waveguide, two or more output/input waveguides, and a planar, non-periodic, sub-wavelength grating. The gra... | 08/04/2011 |
| 20110188805 | OPTICAL FIBER COUPLING SYSTEMS AND METHODS FOR FABRICATING THE SAME Various embodiments of the present invention are directed to optical fiber coupling systems and to methods for fabricating optical fiber coupling systems. In one aspect, an optical fiber coupling system includes a first resonant cavity abutting the end of an optical fib... | 08/04/2011 |
| 20110182548 | DEVICE FOR COUPLING AN OPTICAL FIBER AND A NANOPHOTONIC COMPONENT The invention relates to a device for coupling an optical fiber and a nanophotonic component formed on a first substrate, wherein the device comprises: an intermediate component formed on a second substrate including a first wave guide adapted for receiving light from t... | 07/28/2011 |
| 20110176218 | WAVEGUIDES A waveguide 60 formed of material 62 allows propagation of image bearing light along a light pathway 64 by total internal reflection of the image bearing light. The layer of material 62 is a light transparent material arranged to allow an obs... | 07/21/2011 |
| 20110176768 | OPTICAL SPECTRAL FILTER, ANGULAR FILTER AND POLARISER A filter and fabrication process for a thin film filter that is based on frustrated total internal reflection and multiple waveguide layers, in which the waveguide modes are resonantly coupled. The physics of the design is related to prism coupling of light into planar ... | 07/21/2011 |
| 20110150392 | Reducing optical loss in reflective optical gratings An optical device includes a light-transmitting medium on a base. The light-transmitting medium at least partially defines a free propagation region through which light signals travel. A reflective grating is positioned such that light signals can travel through the fre... | 06/23/2011 |
