Optical Waveguide Sensor Patents (Class 385/12)
  • Patent number: 10345227
    Abstract: A sensor system having coupling structures is disclosed. The system includes an input coupling structure, an interaction region, and an output coupling structure. The input coupling structure is configured to receive emitted light at a selected coupling efficiency and may provide filtering of the emitted light for a selected wavelength. The interaction region is coupled to the input coupling structure and configured to interact the light from the input coupling structure with a specimen. The output coupling structure is coupled to the interaction region and configured to provide interacted light from the interaction region to the detector.
    Type: Grant
    Filed: June 8, 2017
    Date of Patent: July 9, 2019
    Assignee: Infineon Technologies AG
    Inventors: Ventsislav Lavchiev, Thomas Grille, Ursula Hedenig, Bernhard Jakoby
  • Patent number: 10345518
    Abstract: A photonic waveguide for conducting light having first and second wavelengths, the waveguide comprising superposed first and second strips of light conducting semiconductor materials having first and second refractive indexes, wherein the second wavelength is shorter than the first wavelength and the second refractive index is higher than the first refractive index, wherein the width and height of the first strip of light conducting semiconductor material are such that the first strip of light conducting semiconductor material is adapted to confine an optical mode of the first wavelength and the width and height of the second strip of light conducting semiconductor material are such that the second strip of light conducting semiconductor material is adapted to confine an optical mode of the second wavelength but is too narrow to confine an optical mode of the first wavelength.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: July 9, 2019
    Assignee: HRL Laboratories, LLC
    Inventors: Daniel Yap, Troy Rockwood, Kevin Geary, Sarabjit Mehta
  • Patent number: 10302467
    Abstract: A method of optical sensing is disclosed. The method comprises coupling an excitation optical signal into a first optical fiber to induce Rayleigh backscattering, thereby providing a backscattered signal; coupling the backscattered signal into a second optical fiber, spatially separated from the first optical fiber; and optically amplifying the backscattered signal in the second optical fiber, thereby generating a sensing signal.
    Type: Grant
    Filed: June 16, 2015
    Date of Patent: May 28, 2019
    Assignee: Ariel Scientific Innovations Ltd.
    Inventors: Shmuel Sternklar, David Mermelstein
  • Patent number: 10287398
    Abstract: A functionalized siloxane includes a ligand capable of coordinating a metal. The functionalized siloxane includes a pyridine-containing ligand attached to a siloxane polymer. The functionalized siloxanes can be employed to provide complexes including a metal that may impart a desired property to the polymer. In one embodiment, the polymer can complex lanthanide metals that are capable of phosphorescing upon exposure to UV irradiation. Such polymers can be employed to provide functional materials such as, for example, luminescent films, coatings, etc.
    Type: Grant
    Filed: December 29, 2015
    Date of Patent: May 14, 2019
    Assignee: Momentive Performance Materials Inc.
    Inventors: Karthikeyan Sivasubramanian, Vivek Khare
  • Patent number: 10274673
    Abstract: We provide methods and apparatus for preparing crystalline-clad and crystalline core optical fibers with minimal or no breakage by minimizing the influence of thermal stress during a liquid phase epitaxy (LPE) process as well as the fiber with precisely controlled number of modes propagated in the crystalline cladding and crystalline core fiber via precisely controlling the diameter of crystalline fiber core with under-saturated LPE flux. The resulting crystalline cladding and crystalline core optical fibers are also reported.
    Type: Grant
    Filed: January 19, 2018
    Date of Patent: April 30, 2019
    Assignees: The Penn State Research Foundation, General Opto Solutions LLC
    Inventors: Shizhuo Yin, Fang Luo
  • Patent number: 10263696
    Abstract: An optical fiber is monitored for changes in a monitor signal caused when the fiber is subjected to vibration, motion, or handling typical of an intrusion attempt and for triggering an alarm condition in response by one or more sensors. The sensor emits data on each disturbance event including the existence of the disturbance event and a value associated with the disturbance event dependent on an intensity of the disturbance. The arrangement herein provides an algorithm to analyze the disturbance events which calculates for each event a score dependent on the presence of the event and the value associated with the event, generates a summation of the scores in a FIFO and when the summation of the scores exceeds a predetermined threshold within a predetermined time period, the processor emits a signal triggering the alarm condition.
    Type: Grant
    Filed: June 11, 2018
    Date of Patent: April 16, 2019
    Assignee: Network Integrity Systems, inc.
    Inventors: Cary R. Murphy, Daniel M Goertzen, Mark K. Bridges
  • Patent number: 10254626
    Abstract: An embodiment simultaneously receives light waves emanating from an object and having first frequency components f1.1 and f1.2, and pumped monochromatic coherent light waves having a second frequency f2. The method non-linearly combines the light waves having the first frequency component f1.1 and the pumped monochromatic coherent light waves, and generates coherent light waves having a third frequency component f3.1 that is a sum of the first frequency f1.1 and the second frequency f2. The method non-linearly combines the light waves having the first frequency component f1.2 and the pumped monochromatic coherent light waves, and generates coherent light waves having a third frequency component f3.2 that is a sum of the first frequency f1.2 and the second frequency f2. The method digitizes the generated coherent light waves and outputs an image responsive to the light waves emanating from the object.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: April 9, 2019
    Inventors: Gleb M. Akselrod, David R. Smith
  • Patent number: 10246795
    Abstract: The present invention relates to a transfer-free method for forming a graphene layer, in which a high-quality graphene layer having excellent crystallinity can be easily formed over a large area at low temperature by a transfer-free process so that it can be applied directly to a base substrate, which is used in a transparent electrode, a semiconductor device or the like, without requiring a separate transfer process, and to an electrical device comprising a graphene layer formed by the method. More specifically, the transfer-free method for forming a graphene layer comprises the steps of: depositing a Ti layer having a thickness of 3-20 m on a base substrate by sputtering; and growing graphene on the deposited Ti layer by chemical vapor deposition.
    Type: Grant
    Filed: September 22, 2016
    Date of Patent: April 2, 2019
    Assignee: Kuk-II Graphene Co., Ltd.
    Inventors: Soon-Gil Yoon, Byeong-Ju Park
  • Patent number: 10241289
    Abstract: Anchoring an input cable (190) at an input port (123, 223) of an enclosure (110) includes inserting the input cable (190) through an anchor member (151, 251) so that a cable jacket (191) terminates within the anchor member (151, 251) and at least one optical fiber (195) extends outwardly from the anchor member (151, 251). The anchor member (151, 251) is secured to the cable jacket (191) using the sheath (175). A cover (162, 260) is mounted to the anchor member (151, 251) to form a pass-through assembly (150, 250) defining an enclosed region. Material is injected into the enclosed region to fix strength members (197) and/or optical fibers (195) of the input cable (190) to the pass-through assembly (150, 250). The ruggedized pass-through assembly (150, 250) is disposed at a base (120, 220) of the enclosure (110).
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: March 26, 2019
    Assignee: CommScope Connectivity Belgium BVBA
    Inventors: Bart Mattie Claessens, Philippe Coenegracht
  • Patent number: 10238370
    Abstract: A biopsy needle has a central axis and includes one or more sensing regions, each sensing region formed by a plurality of sensing optical fibers located over a particular extent of said central axis and inside the outer shell of the needle. The sensing optical fibers are coupled to a wavelength interrogator. A steerable catheter has a central axis and outer shell, the outer shell coupled to a plurality of optical fibers in sensing regions and actuation regions, the sensing regions formed over particular extents of the central axis by bonding gratings to the inner surface of the outer shell, and the actuation regions formed by coupling optical energy into shape memory alloys bonded to the outer shell.
    Type: Grant
    Filed: January 3, 2014
    Date of Patent: March 26, 2019
    Assignee: INTELLIGENT FIBER OPTIC SYSTEMS, INC.
    Inventors: Yong-Lae Park, Richard James Black, Behzad Moslehi, Mark R. Cutkosky, Santhi Elayaperumal, Bruce Daniel, Alan Yeung, Vahid Sotoudeh
  • Patent number: 10234743
    Abstract: A beam steering device is provided including a p-n junction layer disposed on a reflective electrode layer, wherein a refractive index of the p-n junction layer is variable according to a voltage applied to the reflective electrode layer; a nanoantenna layer including a plurality of components disposed on the p-n junction layer; and a common electrode electrically connected to each of the plurality of components of the nanoantenna. The p-n junction layer may include a p-doped layer and an n-doped layer.
    Type: Grant
    Filed: July 21, 2017
    Date of Patent: March 19, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sunil Kim, Jaechul Park, Duhyun Lee, Byounglyong Choi
  • Patent number: 10194801
    Abstract: A method for visualizing branches of a lumen includes inserting (402) a fiber optic shape sensing device into a lumen and determining (404) changes in the lumen based upon strain induced in the fiber optic shape sensing device by flow in the lumen. Locations of branches are indicated (410) on a rendering of the lumen. An instrument is guided (414) to the locations of branches indicated on the rendering.
    Type: Grant
    Filed: June 20, 2013
    Date of Patent: February 5, 2019
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Haytham Elhawary, Aleksandra Popovic, Robert Manzke, Raymond Chan
  • Patent number: 10178945
    Abstract: A shape sensor comprises a shape sensor main body which comprises an optical fiber capable, a detection object section, and a light detecting section to detect the detection light and which is capable of measuring a shape of a measurement target object by utilizing a change in characteristics of the light detected through the detection object section in accordance with a change in curvature of the optical fiber when the optical fiber curves; and a curving direction regulating section which is provided on at least a part of the optical fiber along an optical axis thereof and regulates a curvable direction of the optical fiber to a desired direction; wherein the curving direction regulating section is a core member which is disposed in at least a part of the shape sensor main body along the light propagating direction of the optical fiber and whose main curving direction is regulated.
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: January 15, 2019
    Assignee: OLYMPUS CORPORATION
    Inventors: Toru Kuboi, Satoshi Ohara
  • Patent number: 10168471
    Abstract: An optical sensor has a waveguide having a core, a cladding having an outer surface and a long period fiber grating. The core, the cladding and the long period fiber grating collectively provide at least two resonant wavelengths. The optical sensor also has binding sites on the outer surface of the cladding for binding to elements to be detected to the outer surface of the cladding. The cladding may be thinned down to a thickness sufficiently low produce the resonant wavelengths. The binding sites include agents for binding to the elements to be detected with the agents being covalently bonded to the surface of the cladding. Example binding sites can include bacteriophages for detecting E. coli bacteria, Palladium for detecting hydrogen, or synthetic DNA for detecting viruses of certain molecules for example.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: January 1, 2019
    Inventors: Wojtek J. Bock, Saurabh Mani Tripathi, Predrag Mikulic
  • Patent number: 10156524
    Abstract: A device for use in the detection of binding affinities, the device comprising a planar waveguide (2) arranged on a substrate (3), and further comprising an optical coupler (41) having a predetermined length for coupling coherent light (1) of a predetermined wavelength into the planar waveguide (2) such that a parallel beam of coherent light propagates through the planar waveguide (2) with an evanescent field (11) of the coherent light propagating along an outer surface (21) of the planar waveguide (2). The outer surface (21) of the planar waveguide (2) comprises binding sites thereon capable of binding target samples to the binding sites such that light of the evanescent field (11) is diffracted by target samples bound to the binding sites. The binding sites are arranged along a plurality of predetermined straight lines (7) running parallel to one another with a constant distance between adjacent straight lines.
    Type: Grant
    Filed: December 3, 2013
    Date of Patent: December 18, 2018
    Assignee: Hoffmann-La-Roche Inc.
    Inventor: Christof Fattinger
  • Patent number: 10151879
    Abstract: In one aspect, a photonic device includes a substrate layer comprising magnesium fluoride and an optical guiding layer disposed on the substrate layer. The optical guide layer includes silicon dioxide. The substrate layer and the optical guide layer are transparent at an ultraviolet and visible wavelength range. In another aspect, a method includes oxidizing silicon to form a silicon dioxide layer, bonding the silicon dioxide layer to magnesium fluoride, removing the silicon and performing lithography and etching of the silicon dioxide to form a photonic device.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: December 11, 2018
    Assignee: Raytheon BBN Technologies Corporation
    Inventor: Mohammad Soltani
  • Patent number: 10143401
    Abstract: A method for weight and/or fitness management using a metabolic analyzer that measures metabolic data including oxygen and carbon dioxide. The metabolic analyzer includes integrated collection-detection sensors with for high efficiency and collection, high specificity and simultaneous detection of at least two metabolic signatures, including at least oxygen and carbon dioxide, in breath via a porous membrane with high density of sensing binding sites, where the porous membrane includes sensing materials such that the sensing binding sites are specific to the metabolic signatures, and change colors upon interactions with the metabolic signatures. Weight of the subject is measured using a weight measurement device and a recommendation for food intake and/or physical activity is based on at least the readings of the metabolic analyzer and weight of the subject.
    Type: Grant
    Filed: June 11, 2012
    Date of Patent: December 4, 2018
    Assignee: ARIZONA BOARD OF REGENTS ACTING FOR AND ON BEHALF OF ARIZONA STATE UNIVERSITY
    Inventors: Nongjian Tao, Erica Forzani
  • Patent number: 10132700
    Abstract: An FBG strain sensor for measuring strains to curved surfaces, includes a fiber which is fixed between two securing elements whose undersides are designed as adhesive surfaces, the optical fiber and these securing elements being embedded in a protective compound which consists of a soft silicone rubber or a plastic that has comparable mechanical properties, and the fiber being embedded between an upper and a lower thin sliding film or a sliding tube that consists of Teflon or of a plastic which has a low friction coefficient comparable to Teflon, the underside of the lower sliding film or the lower external surface-line of the sliding tube lying in a plane with the adhesive surfaces of the securing elements.
    Type: Grant
    Filed: November 15, 2012
    Date of Patent: November 20, 2018
    Assignee: HOTTINGER BALDWIN MESSTECHNIK GMBH
    Inventors: Jochen Maul, Tobias Kipp, Bernd Günther
  • Patent number: 10111293
    Abstract: A method of delivering light from a lighting device including having at least one main LED, at least one auxiliary LED, and at least one ceramic light conversion element placed longitudinal to the path of light emitted from the main LED and orthogonal to the auxiliary LED; the method including the steps of switching on the at least one main LED, and changing the color temperature of the light emitted from the lighting device by switching on the at least one auxiliary LED.
    Type: Grant
    Filed: November 8, 2013
    Date of Patent: October 23, 2018
    Assignee: PHILIPS LIGHTING HOLDING B.V.
    Inventors: Bernd Hofmann, Hans-Helmut Bechtel
  • Patent number: 10101202
    Abstract: An optical system having an optical sensor with an ultra-short FP cavity, and a low-resolution optical interrogation system coupled to the optical sensor and operational to send light signals and receive light signals to and from the optical sensor is disclosed. The optical system may operate in a wavelength range including the visible and near-infrared range. Optical assemblies and methods of interrogating optical sensors are provided, as are numerous other aspects.
    Type: Grant
    Filed: May 17, 2017
    Date of Patent: October 16, 2018
    Assignee: University of Maribor
    Inventors: Denis Donlagic, Simon Pevec
  • Patent number: 10088475
    Abstract: Microfluidic devices for determining whether an analyte is present in a sample are provided. The microfluidic devices include a polymeric medium that includes a first analyte detection domain having a first covalently bound capture member that specifically binds to a first analyte, and a second analyte detection domain having a second covalently bound capture member that specifically binds to a second analyte. Also provided are methods of using the subject microfluidic device, systems and kits that use the subject microfluidic devices, as well as methods of producing the same.
    Type: Grant
    Filed: October 21, 2014
    Date of Patent: October 2, 2018
    Assignee: The Regents of the University of California
    Inventors: Amy E. Herr, Robert Lin
  • Patent number: 10073098
    Abstract: The present invention provides methods for producing disulfide oxidoreductase A (DsbA) and disulfide oxidoreductase C (DsbC) polypeptides at very high levels of purity. Also provided are ultrapure DsbA and DsbC and methods of using same, e.g., for use in immunoassays to show removal of DsbA and DsbC from biologics produced in bacteria.
    Type: Grant
    Filed: March 4, 2016
    Date of Patent: September 11, 2018
    Assignee: Genentech, Inc.
    Inventors: Marc Wong, Liliana T. Yee, Amy Lim, Chris B. Fong
  • Patent number: 10067030
    Abstract: A system and method for simultaneously addressing multiple parallel distributed fiber optic sensors using a single interrogation instrument is disclosed. One or more of the fiber optic sensors are provided with a non-reflective delay element to prevent an overlap in time between backscatter returns from the distributed fiber optic sensors, thereby allowing the backscatter returns from each sensor to be distinguished based on round-trip transit time.
    Type: Grant
    Filed: August 22, 2017
    Date of Patent: September 4, 2018
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Arthur Hartog, Paul Frederick Cilgrim Dickenson
  • Patent number: 10018563
    Abstract: A sample plate (1) and an analyzing method, wherein the sample plate (1) comprises a substrate (2), at least one sensor site (5) on a first surface (3) of the substrate (2) and at least one optical element (6) on a second surface (4) of the substrate (2). The sample plate (1) is further provided with a waveguide (7) on the second surface (4) for guiding an excitation signal to interact with the at least one sensor site (5). The method comprises bringing the sample in contact with at least one sensor site (5), exciting the sensor site (5) in order to obtain an emitted signal, and selectively collecting the emitted signal by means of at least one optical element (6) and utilizing a supercritical angle fluorescence method; and detecting the collected emitted signals by a detector. In the method, the sensor site (5) is excited by means of an evanescent field generated by the excitation signal propagating in a waveguide (7).
    Type: Grant
    Filed: February 27, 2014
    Date of Patent: July 10, 2018
    Assignee: Teknologian tutkimuskeskus VTT Oy
    Inventors: Kirsi Tappura, Hannu Välimäki
  • Patent number: 10012759
    Abstract: A downhole sensing system includes an optical sensor that provides a light signal with at least one attribute related to a downhole parameter. The system also includes a parametric amplification module that amplifies the light signal using squeezed or entangled light for internal mode input. The system also includes a processing unit that determines a value for the downhole parameter based on the amplified light signal.
    Type: Grant
    Filed: March 20, 2014
    Date of Patent: July 3, 2018
    Assignee: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Satyan G. Bhongale, Christopher L. Stokely
  • Patent number: 9993139
    Abstract: An optical scanning endoscope apparatus includes an optical fiber for illumination, a driver that drives the tip of the optical fiber for illumination in a Lissajous scan pattern, illumination lenses that irradiate an object of observation with irradiation light emitted from the tip of the fiber, a photodetector that detects light obtained from the object of observation by irradiation with the irradiation light and converts the light to an electrical signal, an image processor that generates an image based on the electrical signal output by the photodetector, and a phase adjustor that adjusts the phase of the drive waveform of the driver so as to correct a phase shift between the drive waveform of the tip of the fiber by the driver and the vibration waveform of the tip of the fiber.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: June 12, 2018
    Assignee: OLYMPUS CORPORATION
    Inventor: Atsuyoshi Shimamoto
  • Patent number: 9977056
    Abstract: A method for measuring an alternating electric field is disclosed. The method includes realizing a first diffraction grating in a first location, in a core of a silica-based optical fiber, and measuring a peak reflection wavelength of the first diffraction grating. The method also includes positioning the optical fiber along a direction having a non-zero component of an electrical field generated by an alternating voltage to be measured, and coupling a substantially monochromatic light to said optical fiber surrounded by the electric field. The method further includes measuring a parameter dependent on a shift of the peak reflection wavelength due to intrinsic mechanical deformation or refractive index change of the material in which the optical fiber and the diffracting grating are realized due to the alternating electric field, and calculating a value of the electric field causing such a measured deformation or refractive index change.
    Type: Grant
    Filed: October 9, 2014
    Date of Patent: May 22, 2018
    Assignee: CNR—CONSIGLIO NAZIONALE DELLE RICERCHE
    Inventors: Gianluca Gagliardi, Fabrizio Marignetti
  • Patent number: 9976950
    Abstract: Embodiments of the invention comprise apparatus and methods for detecting the presence of a substance in a test material using a plurality of wavelength-specific couplers (e.g. tilted fiber gratings) which provide a spatially distributed multi-node all-optical measurement system. Each node of the measurement system can comprise an optical module that is sensitive to the intensity of a limited band of wavelengths. The node is thus capable of detecting the presence of an absorption peak in a spectrum without having to obtain the full spectrum. By providing a plurality of optical modules that are sensitive to different wavelengths, the spectral signature of different substances may be monitored without having to measure full spectra. The measurement system may be particularly useful in a process control environment where it is desirable to take measurements of one or more substances in different locations.
    Type: Grant
    Filed: October 7, 2015
    Date of Patent: May 22, 2018
    Assignee: ASTON UNIVERSITY
    Inventors: Lin Zhang, Zhijun Yan, Kaiming Zhou, Mehmet Aytun Erdentug
  • Patent number: 9945738
    Abstract: The present invention provides improved methods that allow accurate monitoring and/or control of temperature changes in a microfluidic environment. An advantage of the present invention is that the temperature can be monitored and/or controlled at any location within a microfluidic device, especially where a preparation step, an amplification step and/or a detection step is performed. The invention further provides improved microfluidic devices for practicing the methods disclosed and claimed herein.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: April 17, 2018
    Assignee: GenMark Diagnostics, Inc.
    Inventors: Hamed Shadpour, Sean Ford, Jorge Alberto Garces, Darren S. Gray
  • Patent number: 9945719
    Abstract: A frequency selective electromagnetic apparatus is provided. The apparatus may include at least one nanowire comprising a first end and a second end opposite the first end, at least one 2-dimensional contact disposed adjacent to the first end or the second end and in thermal communication, electrical communication, or both thermal and electrical communication with the at least one nanowire, and at least one nanoscale-sized-diameter thermoelectric junction disposed between the at least one 2-dimensional contact and the at least one nanowire.
    Type: Grant
    Filed: December 15, 2014
    Date of Patent: April 17, 2018
    Assignee: THE BOEING COMPANY
    Inventors: John H. Belk, Jeffrey H. Hunt
  • Patent number: 9946017
    Abstract: Arrays of integrated analytical devices and their methods for production are provided. The arrays are useful in the analysis of highly multiplexed optical reactions in large numbers at high densities, including biochemical reactions, such as nucleic acid sequencing reactions. The integrated devices allow the highly sensitive discrimination of optical signals using features such as spectra, amplitude, and time resolution, or combinations thereof. The arrays and methods of the invention make use of silicon chip fabrication and manufacturing techniques developed for the electronics industry and highly suited for miniaturization and high throughput.
    Type: Grant
    Filed: May 19, 2017
    Date of Patent: April 17, 2018
    Assignee: Pacific Biosciences of California, Inc.
    Inventors: Ravi Saxena, Michael Tzu Ru, Takashi Whitney Orimoto, Annette Grot, Mathieu Foquet, Hou-Pu Chou
  • Patent number: 9933244
    Abstract: A beam-shaping optical system suitable for use with optical coherence tomography including a sheath defining a central cavity, a beam-shaping insert defining a beam-shaping element positioned within the central cavity, and an optical fiber having a core and a cladding. The optical fiber defines an angularly prepared fiber end configured to emit an electromagnetic beam toward the beam-shaping element with the core of the optical fiber locally expanded at the fiber end.
    Type: Grant
    Filed: January 18, 2016
    Date of Patent: April 3, 2018
    Assignee: Corning Incorporated
    Inventors: Mark Francis Krol, William James Miller, Robert Adam Modavis
  • Patent number: 9921160
    Abstract: A laser beam 6 irradiated from a side face of a microchip 1 in which plural channels 2 fill ed with a member of a refractive index n2 in an inner portion of a member of a refractive index n1 (n2<n1) are arranged in parallel with the same plane, along the same plane is refracted in a direction of being directed from an upper base to a lower base in a case where a section of the channel 2 is configured by a trapezoidal shape of upper base>lower base, and is deviated swiftly from a channel array. Hence, the laser beam 6 is made to be deviated gradually from the channel array by irradiating the laser beam 6 from the side face of the microchip 1 by being inclined relative to the same plane in a direction of being directed from the lower base to the upper base. As a result, a larger number of the channels 2 can efficiently be subjected to laser beam irradiation.
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: March 20, 2018
    Assignee: HITACHI HIGH-TECHNOLOGIES CORPORATION
    Inventors: Takashi Anazawa, Yoshitaka Kodama, Motohiro Yamazaki, Kunio Harada
  • Patent number: 9915612
    Abstract: Arrays of integrated analytical devices and their methods for production are provided. The arrays are useful in the analysis of highly multiplexed optical reactions in large numbers at high densities, including biochemical reactions, such as nucleic acid sequencing reactions. The devices allow the highly sensitive discrimination of optical signals using features such as spectra, amplitude, and time resolution, or combinations thereof. The devices include an integrated diffractive beam shaping element that provides for the spatial separation of light emitted from the optical reactions.
    Type: Grant
    Filed: March 6, 2017
    Date of Patent: March 13, 2018
    Assignee: Pacific Biosciences of California, Inc.
    Inventors: Annette Grot, Ravi Saxena, Paul Lundquist
  • Patent number: 9895460
    Abstract: An assembly for detecting a substance on an outer surface of a shaft. According to one implementation the assembly includes an elongate shaft having an outer surface and a radially emitting fiber spirally disposed inside the elongate shaft. A plurality of through holes are located between the radially emitting fiber and the outer surface with the through holes being longitudinally spaced-apart from one another. A laser under the control of a controller is optically coupled with the radially emitting fiber. The controller is configured to cause the laser to deliver pulsed light with a pulsed width into the radially emitting fiber. The longitudinal distance between adjacent through holes are such that the pulse width is shorter than a time for the light to travel between the adjacent through holes.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: February 20, 2018
    Assignee: INIKOA MEDICAL, INC.
    Inventors: Brett M. Zaborsky, Michael R. Lopez
  • Patent number: 9889444
    Abstract: An analysis tool suppressing background and improving detection sensitivity. In a first plate is formed a first concavity having, in the path of excitation light of a surface opposite to a bonding surface, a first bottom surface, a first opening, and a slanted surface widening from the edge of the first bottom surface towards the edge of the first opening. In a second plate, having a flow path formed on the bonding surface, is formed a second concavity having, in the path of excitation light of the surface opposite to the bonding surface, a second bottom surface, a second opening, and a slanted surface widening from the edge of the second bottom surface towards the edge of the second opening. The first plate is bonded to the second plate, and the first opening and the second opening are covered with a film.
    Type: Grant
    Filed: July 15, 2011
    Date of Patent: February 13, 2018
    Assignee: ENPLAS CORPORATION
    Inventor: Koichi Ono
  • Patent number: 9885657
    Abstract: System and methods for analyzing single molecules and performing nucleic acid sequencing. An integrated device includes multiple pixels with sample wells configured to receive a sample, which when excited, emits radiation. The integrated device includes at least one waveguide configured to propagate excitation energy to the sample wells from a region of the integrated device configured to couple with an excitation energy source. A pixel may also include at least one element for directing the emission energy towards a sensor within the pixel. The system also includes an instrument that interfaces with the integrated device. The instrument may include an excitation energy source for providing excitation energy to the integrated device by coupling to an excitation energy coupling region of the integrated device.
    Type: Grant
    Filed: August 7, 2015
    Date of Patent: February 6, 2018
    Assignee: Quantum-Si Incorporated
    Inventors: Jonathan M. Rothberg, Ali Kabiri, Jason W. Sickler, Brett J. Gyarfas, Jeremy Lackey, Gerard Schmid, Lawrence C. West, Keith G. Fife, Benjamin Cipriany, Farshid Ghasemi
  • Patent number: 9874432
    Abstract: Various embodiments include apparatus and methods of measuring pressure within pipes implemented in a well drilling operation. Methods and apparatus may include a single path optical interferometer having a sensing portion attachable to a location on a conduit and a dual path optical interferometer having a sensing portion attachable to the conduit, where the sensing portions are effectively collocated. Additional apparatus, systems, and methods are disclosed.
    Type: Grant
    Filed: August 19, 2010
    Date of Patent: January 23, 2018
    Assignee: Halliburton Energy Services, Inc
    Inventor: Ronald L. Spross
  • Patent number: 9857299
    Abstract: A chip-scale, reusable sensor can detect aromatic hydrocarbons, such as benzene, toluene, ethylbenzene, and xylenes (BTEX), rapidly in water without sample preparation. The device is capable of real-time, continuous monitoring for BTEX solutes, which diffuse into a film, such as a polymer, on the sensors surface. In operation, BTEX analytes concentrate in the film, causing an increase in refractive index, which modulates evanescent coupling into the chips integrated photodetector array. Integration of the photodetector array simplifies system instrumentation and permits incorporation of an on-chip photocurrent reference region in the immediate vicinity of the sensing region, reducing drift due to temperature fluctuations. In some examples, the chip responds linearly for BTEX concentrations between 1 ppm and 30 ppm, with a limit of detection of 359 ppb, 249 ppb, and 103 ppb for benzene, toluene, and xylene in water, respectively.
    Type: Grant
    Filed: April 4, 2017
    Date of Patent: January 2, 2018
    Assignee: Colorado State University Research Foundation
    Inventors: Kevin Lear, Timothy Erickson
  • Patent number: 9851505
    Abstract: Provided is a substrate-type optical waveguide element in which when (i) effective refractive indexes of a TE polarized wave and a TM polarized wave in the first core are NTE@WG1 and NTM@WG1, respectively, and (ii) effective refractive indexes of a TE polarized wave and a TM polarized wave in the second core are NTE@WG2 and NTM@WG2, respectively, a magnitude relation of the effective refractive indexes NTM@WG1 and NTM@WG2 at a start position of a parallel-core section is opposite to a magnitude relation of the effective refractive indexes NTM@WG1 and NTM@WG2 at an end position of the parallel-core section, and at least one of the cores includes (a) a main part having a quadrilateral cross section and (b) a protruding part protruding from one of side surfaces of the main part in a direction parallel to a boundary surface between a lower cladding and a upper cladding.
    Type: Grant
    Filed: March 2, 2017
    Date of Patent: December 26, 2017
    Assignee: FUJIKURA LTD.
    Inventor: Akira Oka
  • Patent number: 9829668
    Abstract: Anchoring an input cable (190) at an input port (123, 223) of an enclosure (110) includes inserting the input cable (190) through an anchor member (151, 251) so that a cable jacket (191) terminates within the anchor member (151, 251) and at least one optical fiber (195) extends outwardly from the anchor member (151, 251). The anchor member (151, 251) is secured to the cable jacket (191) using the sheath (175). A cover (162, 260) is mounted to the anchor member (151, 251) to form a pass-through assembly (150, 250) defining an enclosed region. Material is injected into the enclosed region to fix strength members (197) and/or optical fibers (195) of the input cable (190) to the pass-through assembly (150, 250). The ruggedized pass-through assembly (150, 250) is disposed at a base (120, 220) of the enclosure (110).
    Type: Grant
    Filed: August 25, 2014
    Date of Patent: November 28, 2017
    Assignee: COMMSCOPE CONNECTIVITY BELGIUM BVBA
    Inventors: Bart Mattie Claessens, Philippe Coenegracht
  • Patent number: 9829473
    Abstract: The invention relates to a detector system suitable for detection of an aromatic hydrocarbon, comprising an organic polymeric sensor material that is permeable to the aromatic hydrocarbon, the sensor material comprising a molecular probe selected from the group of methanatoboron moieties. Further, the invention relates to the use of a detector system according to the invention for the detection of an aromatic hydrocarbon, preferably an aromatic hydrocarbon selected from the group of benzene, toluene and xylene.
    Type: Grant
    Filed: December 13, 2013
    Date of Patent: November 28, 2017
    Assignee: NEDERLANDSE ORGANISATIE VOOR TOEGEPAST-NATUURWETENSCHAPPELIJK ONDERZOEK TNO
    Inventors: Juan Diego Arias Espinoza, Edsger Constant Pieter Smits
  • Patent number: 9825706
    Abstract: A multiplexed sensor system includes a control unit in communication with a plurality of sensors. A plurality of optic fibers defines a communication path between the plurality of sensors and the control unit. A multiplexing portion communicates with a plurality of sensors along a common one of the plurality of optic fibers and a protected channel through which at least a portion of the optic fibers are routed. The protected channel at least partially surrounds the optic fibers and shields the optic fibers from an environment outside the protected channel. A cooling flow is provided through the protective channel for minimizing temperature fluctuations within the protective channel. A method is also disclosed.
    Type: Grant
    Filed: February 27, 2015
    Date of Patent: November 21, 2017
    Assignee: United Technologies Corporation
    Inventor: Kurt J. Sobanski
  • Patent number: 9823351
    Abstract: Methods and apparatus for light detecting and range sensing. In one approach, a light detecting and ranging (LiDAR) sensor uses an optical directing device; a multi-clad optical fiber, a light source, and a detector. The light source is optically coupled to the multi-clad optical fiber which is configured to receive optical rays transmitted from the light source and route the rays on an optical path leading to the optical directing device. The optical directing device is configured both to direct the transmitted optical rays routed through the multi-clad fiber towards a target to be sensed and direct optical rays reflected from the target on an optical path leading to the multi-clad optical fiber. The multi-clad optical fiber is configured to receive the reflected optical rays and route the reflected optical rays on an optical path leading to the detector. The detector is configured to detect the reflected optical rays.
    Type: Grant
    Filed: October 9, 2013
    Date of Patent: November 21, 2017
    Assignee: Uber Technologies, Inc.
    Inventors: James A Haslim, Michael D Karasoff, Nicholas M Iturraran, Brent S Schwarz
  • Patent number: 9816935
    Abstract: The present disclosure relates to structures, systems, and methods for characterizing one or more fluorescent particles. At least one embodiment relates to an integrated waveguide structure. The integrated waveguide structure includes a substrate. The integrated waveguide structure also includes a waveguide layer arranged on top of the substrate. The waveguide layer includes one or more excitation waveguides, one or more emission waveguides, and a particle radiation coupler, which includes a resonator element. In addition, the integrated waveguide structure includes one or more sensing sites configured with respect to the one or more excitation waveguides and the one or more emission waveguides such that a fluorescent particle at one of the sensing sites is activated by an excitation radiation transmitted via the one or more excitation waveguides and radiation emitted by the fluorescent particle is coupled into at least one of the emission waveguides by the particle radiation coupler.
    Type: Grant
    Filed: January 23, 2015
    Date of Patent: November 14, 2017
    Assignee: IMEC VZW
    Inventors: Peter Peumans, Pol Van Dorpe
  • Patent number: 9817085
    Abstract: Embodiments relate to sensors, such as speed sensors and angle sensors, that use a modulated supply voltage to approximately double output signals of the sensors because the sensor element and the supply voltage exhibit the same frequency. In embodiments, the sensor element is an xMR element, and the modulated supply voltage is generated on-chip, such as by another xMR element. Direct frequency doubling of the output signal of the sensor element therefore can be obtained without additional and complex circuitry or signal processing.
    Type: Grant
    Filed: March 15, 2012
    Date of Patent: November 14, 2017
    Assignee: Infineon Technologies AG
    Inventor: Juergen Zimmer
  • Patent number: 9778137
    Abstract: One or more modal characteristics are determined for a waveguide that supports more than two modes. In an example implementation, optical frequency domain reflectometry (OFDR) is used to couple light into the waveguide and detect Rayleigh scatter reflections associated with a segment of the waveguide. An original set of Rayleigh scatter data associated with the detected Rayleigh scatter reflections is generated. In addition, a scaled set of Rayleigh scatter data associated with the detected Rayleigh scatter reflections is generated. The original set of Rayleigh scatter data is correlated with the scaled set of Rayleigh scatter data. One or more modal characteristics of the waveguide are determined based on the correlation.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: October 3, 2017
    Assignee: Intuitive Surgical Operations, Inc.
    Inventor: Mark E. Froggatt
  • Patent number: 9766396
    Abstract: A high backscattering fiber comprising a perturbed segment in which the perturbed segment reflects a relative power that is more than three (3) decibels (dB) above Rayleigh scattering. The high backscattering fiber also exhibits a coupling loss of less than 0.5 dB.
    Type: Grant
    Filed: June 7, 2016
    Date of Patent: September 19, 2017
    Assignee: OFS FITEL, LLC
    Inventors: Tristan Kremp, Paul S Westbrook, Tommy Geisler
  • Patent number: 9766059
    Abstract: A curve sensor universally applicable to even a curving measurement target having a relatively small diameter is provided. A curve sensor to measure the curving of a curving measurement target includes a light supply unit which guides light, a curve measurement unit which includes a curved state detection unit and which measures the curved state of the measurement target by the change in the amount of light output through the curved state detection unit, a light transmission unit which transmits the light from the light supply unit to the curve measurement unit and a holding portion which holds the light supply unit and the curve measurement unit at predetermined positions on the measurement target.
    Type: Grant
    Filed: December 15, 2014
    Date of Patent: September 19, 2017
    Assignee: OLYMPUS CORPORATION
    Inventor: Nobuyoshi Asaoka
  • Patent number: 9759552
    Abstract: A method and system described for sensing a displacement by receiving and propagating a laser light signal with an etched waveguide that is configured to enable an evanescent optical field above the waveguide surface. A movable perturber can be positioned so the perturber interacts with the evanescent optical field above the waveguide surface. An optical phase shift can be induced in the waveguide when the movable perturber is displaced in the evanescent optical field, and the optical phase shift can be measured with an optical readout circuit.
    Type: Grant
    Filed: May 31, 2016
    Date of Patent: September 12, 2017
    Assignee: The United States of America, as represented by the Secretary of the Navy
    Inventors: Marcel W. Pruessner, Todd H. Stievater, William S. Rabinovich