Multilayer Structure (mixture) Patents (Class 385/131)
  • Patent number: 10256604
    Abstract: A semiconductor nanolaser includes a rib formed by a stack of layers, in which stack central layers (33, 34, 35) forming an assembly of quantum wells are placed between a lower layer (32) of a first conductivity type and an upper layer (36) of a second conductivity type. Holes (42) are drilled right through the thickness of the rib, wherein the lower layer includes first extensions (38, 40) that extend laterally on either side of the rib, and that are coated with first metallizations (42, 44) that are located a distance away from the rib. The stack includes second extensions (45, 46) that extend longitudinally beyond said rib, and that are coated with second metallizations (47, 48).
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: April 9, 2019
    Assignees: STMicroelectronics (Crolles 2) SAS, Centre National de la Recherche Scientifique, Universite Paris Diderot
    Inventors: Guillaume Crosnier, Fabrice Raineri, Rama Raj, Paul Monnier
  • Patent number: 10228511
    Abstract: A slot waveguide for electro-optic modulation is provided. The slot waveguide includes a slot and Bragg gratings defined by outer walls of the slot. The Bragg gratings are configured to slow an optical signal. The slot defines a low-refractive index region and the Bragg gratings spaced apart by the slot define a high-refractive index region. The slot waveguide includes a pair of electrodes extending parallel and adjacent to the slot waveguide. The electrodes are configured to carry an electrical modulation signal to induce a change in a phase of the optical signal. The slot of the slot waveguide is at least partially filled with an electro-optic polymeric material poled in a direction orthogonal to a direction of propagation of the optical signal in the slot waveguide.
    Type: Grant
    Filed: July 19, 2017
    Date of Patent: March 12, 2019
    Assignee: LGS Innovations LLC
    Inventors: Jane D. LeGrange, Mihaela Dinu, Alex Pidwerbetsky
  • Patent number: 10222552
    Abstract: An integrated circuit is described. This integrated circuit includes an optical waveguide defined in a semiconductor layer, and a dielectric optical waveguide disposed on the semiconductor layer and that overlaps a region of the optical waveguide. Moreover, the dielectric optical waveguide includes an optical device (such as a mirror) on a facet separating a first portion of the dielectric optical waveguide and a second portion of the dielectric optical waveguide. The facet may be at an angle relative to a plane of the dielectric optical waveguide and may include a metal layer. During operation, an optical signal conveyed by the optical waveguide is evanescent coupled to the dielectric optical waveguide. Then, the optical signal may be reflected by the optical device. For example, the angle of the facet may be 45°, so that the optical signal is reflected normal to the plane of the dielectric optical waveguide.
    Type: Grant
    Filed: January 12, 2016
    Date of Patent: March 5, 2019
    Assignee: Oracle International Corporation
    Inventors: Stevan S. Djordjevic, Xuezhe Zheng, Ashok V. Krishnamoorthy
  • Patent number: 10224514
    Abstract: Disclosed herein is a transparent glass system that includes an optical grade silicon substrate, a transparent substrate layer; a titanium dioxide transparent layer, the transparent layer having an index of refraction of 2.35 or greater; and a polycrystalline diamond layer, wherein the transparent layer is between the substrate layer and the polycrystalline diamond layer.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: March 5, 2019
    Inventors: Adam Khan, Robert Polak, Priya Raman
  • Patent number: 10215919
    Abstract: An optical coupling arrangement is provided, comprising a lightwave circuit (LC), a coupling element and an optical waveguide element, wherein the lightwave circuit has a first surface area and wherein the coupling element is attached to the first surface area) such that an optical signal can be transmitted from the lightwave circuit to the coupling element. The optical waveguide element is attached to the coupling element at a first junction zone such that the optical signal can be transmitted from the coupling element to the optical waveguide element). The coupling element is configured to perform mode transformation to the optical signal transmitted from the lightwave circuit to the optical waveguide element and such that adiabatic coupling of the optical signal to the optical waveguide element is enabled. Thus, a better coupling efficiency can be achieved.
    Type: Grant
    Filed: August 17, 2017
    Date of Patent: February 26, 2019
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Tom Collins, Marco Lamponi
  • Patent number: 10207362
    Abstract: A laser beam irradiation unit of laser processing apparatus includes a pulse laser beam oscillating unit, a condenser that condenses a pulse laser beam and emits the beam to a workpiece held by a chuck table, a dichroic mirror disposed between the pulse laser beam oscillating unit and the condenser, a strobe light irradiation unit that emits light to a path on which the dichroic mirror and the condenser are disposed, a beam splitter disposed between the strobe light irradiation unit and the dichroic mirror, and an imaging unit disposed on the path of light split by the beam splitter. A controller actuates the strobe light irradiation unit and the imaging unit according to the timing of the pulse laser beam, and detects the width of a laser-processed groove immediately after emission of the pulse laser beam on the basis of an image signal from the imaging unit.
    Type: Grant
    Filed: July 8, 2016
    Date of Patent: February 19, 2019
    Assignee: Disco Corporation
    Inventors: Wataru Odagiri, Taku Iwamoto, Kentaro Odanaka, Hironari Ohkubo, Shuichiro Tsukiji, Kouichi Nehashi, Joel Koerwer
  • Patent number: 10205299
    Abstract: A laser comprising: at least one wavelength selective reflector that comprises a waveguide vertically coupled to at least one photonic crystal resonator, the waveguide and photonic crystal resonator being arranged to provide wave-vector matching between at least one mode of the photonic crystal resonator and at least one mode of the waveguide; an optical gain medium for generating light for coupling into the waveguide, and a reflector at an end of the optical gain medium, the reflector and the photonic crystal resonator defining a laser cavity. Light generated by the optical gain medium is coupled into the waveguide and coupled into the photonic crystal resonator, and partially reflected back to the optical gain medium.
    Type: Grant
    Filed: September 17, 2015
    Date of Patent: February 12, 2019
    Assignee: University Court of the University of St Andrews
    Inventors: Kapil Debnath, William Whelan-Curtin
  • Patent number: 10197732
    Abstract: Methods of forming ion-exchanged waveguides in glass substrates are disclosed. In one embodiment, a method of forming a waveguide in an ion-exchanged glass substrate having an ion-exchanged layer extending from a surface to a depth of layer of the ion-exchanged glass substrate includes locally heating at least one band at the surface of the ion-exchanged glass substrate to diffuse ions in the ion-exchanged layer within the at least one band. A concentration of ions within the at least one band is less than a concentration of ions outside of the at least one band, and at least one waveguide is defined within the ion-exchanged layer adjacent the at least one band. In some embodiments, the at least one waveguide is embedded within the ion-exchanged glass substrate such that an upper surface of the at least one waveguide is below the surface of the glass substrate by a depth d.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: February 5, 2019
    Assignee: Corning Optical Communications LLC
    Inventors: Minghan Chen, Ming-Jun Li, Gaozhu Peng
  • Patent number: 10185063
    Abstract: Provided are an optical-diffusion film for display which, particularly when applied to a reflective display device, can efficiently diffuse and emit an external light incident from a wide range of angles toward the front of the display device as image display light, and a reflective display device using the optical-diffusion film.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: January 22, 2019
    Assignee: LINTEC Corporation
    Inventors: Kentaro Kusama, Baku Katagiri, Tomoo Orui, Satoru Shoshi, Hideo Fujikake, Takahiro Ishinabe
  • Patent number: 10146011
    Abstract: A connector includes a ferrule assembly having a ferrule, a hub and a spring, the ferrule having a distal face accessible at a distal end of the connector housing, the ferrule being movable in a proximal direction relative to the connector housing. The distal and proximal positions are separated by an axial displacement distance. The ferrule proximal movement is against the spring's bias. The cable of the assembly includes an optical fiber contained within a jacket and also a strength layer between the fiber and the jacket that is anchored to the connector housing. The fiber extends through a fiber from the proximal end of the connector housing to the ferrule. The fiber has a distal portion potted within the ferrule. The fiber passage has a fiber take-up region configured to take-up an excess length of the fiber corresponding to the ferrule axial displacement.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: December 4, 2018
    Assignee: CommScope Technologies LLC
    Inventor: Ponharith Nhep
  • Patent number: 10133142
    Abstract: An optical Mach Zehnder modulator is described. The optical Mach Zehnder modulator may comprise a plurality of segments separated by curved waveguides. For example, an optical Mach Zehnder modulator may comprise a first waveguide arm having a first pn-junction formed therein, a second waveguide arm having a second pn-junction formed therein, a third waveguide arm coupled to the first waveguide arm via a first curved waveguide and a fourth waveguide arm coupled to the second waveguide arm via a second curved waveguide. The segments may have the same polarities. Alternatively, the segments may have opposite polarities. The different segments may be driven using different RF signals. The RF signals may be delayed from one another.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: November 20, 2018
    Assignee: Acacia Communications, Inc.
    Inventors: Christopher Doerr, Long Chen, Ricardo Aroca
  • Patent number: 10114238
    Abstract: A color changing or beam steering photonic device, which combines a high contrast metastructure (HCM) having a plurality of high index grating structures, into a low index membrane. In response to physical (or electrical) deformation of the membrane the low index gaps between adjacent grating bars changes which results in changing reflectance and transmission angles for steering a single wavelength of light and for causing a color change in said photonic device when subject to multiple light wavelengths. Deformation can result from direct physical stimulus, conversion from electrical or thermal to physical, and so forth. Refractive index change can also be initiated by carrier injection through electrodes. The apparatus is exemplified for use in color displays, beam steering, labeling micro entities, mechanical deformation sensing, camouflage, anti-counterfeiting, and other fields.
    Type: Grant
    Filed: July 20, 2016
    Date of Patent: October 30, 2018
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Connie Chang-Hasnain, Li Zhu
  • Patent number: 10114163
    Abstract: An optical component with image compensation is formed by a plurality of optical fibers arranged and connected in the same direction. A section of the optical component includes an output face, an input face, and a lateral face. The output face is formed by sections at one end of the optical fibers respectively, and each of the sections is a perfect circle or a regular polygon. The input face is formed by sections at the other end of the optical fibers respectively, and each of the sections is noncircular or is a irregular polygonal. The lateral face extends in the same direction as the optical fibers. Thereby, images shown on display devices have preset luminous intensity no matter if users are located in front of or beside the display devices.
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: October 30, 2018
    Assignee: TAIWAN FIBER OPTICS, INC.
    Inventor: Luke Lu
  • Patent number: 10082626
    Abstract: A method comprises forming a plateau region and a trench region over a substrate, wherein the trench region comprises a slope and a flat bottom, depositing a reflecting layer over the flat bottom and a portion of the slope, depositing a first adhesion promoter layer over the reflecting layer, applying a first curing process to the first adhesion promoter layer, wherein, after the first curing process finishes, the reflecting layer and the first adhesion promoter layer form a first bonding interface, depositing a bottom cladding layer deposited over the first adhesion promoter layer, applying a second curing process to the bottom cladding layer to form a second bonding interface layer, depositing a core layer over the bottom cladding layer and depositing a top cladding layer over the core layer.
    Type: Grant
    Filed: November 3, 2016
    Date of Patent: September 25, 2018
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chun-Hao Tseng, Ying-Hao Kuo, Kai-Fang Cheng, Hai-Ching Chen, Tien-I Bao
  • Patent number: 10082633
    Abstract: A method to manufacture optoelectronic modules comprises a step of providing a first wafer comprising a plurality of first module portions, wherein each of the first module portions comprises at least one passive optical component, providing a second wafer comprising a plurality of second module portions, wherein each of the second module portions comprises at least one optoelectronic component. The wafers are disposed on each other to provide a wafer stack that is diced into individual optoelectronic modules respectively comprising one of the first and the second and the third module portions.
    Type: Grant
    Filed: July 21, 2016
    Date of Patent: September 25, 2018
    Assignee: Corning Optical Communications LLC
    Inventors: Rebecca Kayla Schaevitz, Michael John Yadlowsky, James Gavon Renfro, Jr., Ian Armour McKay
  • Patent number: 10073219
    Abstract: An integrated circuit includes an active device for confinement of a light flux that is formed in a semiconducting substrate. A confinement rib is separated from two doped zones by two trenches. Each doped zone includes a contacting zone on an upper face. Each trench widens from a bottom wall towards the upper face of the corresponding doped zone. The widening trenches present a sidewall having a tiered profile between the trench and the doped zone. An opposite sidewall presents a straight profile.
    Type: Grant
    Filed: February 24, 2016
    Date of Patent: September 11, 2018
    Assignee: STMicroelectronics (Crolles 2) SAS
    Inventor: Charles Baudot
  • Patent number: 10074702
    Abstract: An organic light emitting diode display panel is disclosed, which comprises: a substrate having a light emitting region and a non-light emitting region, wherein a first electrode layer is disposed on the light emitting region, a pixel defining layer is disposed on the non-light emitting region, and the pixel defining layer has a plurality of concave structures; an organic layer disposed on the first electrode layer and the pixel defining layer; and a second electrode layer disposed on the organic layer; wherein the organic layer is discontinuous at the concave structures.
    Type: Grant
    Filed: August 8, 2016
    Date of Patent: September 11, 2018
    Assignee: INNOLUX CORPORATION
    Inventors: Wei-Chieh Teng, Jin-Ju Lin, Neng-Jung You, Wei-Chih Yang
  • Patent number: 10054745
    Abstract: A SOI device may include a waveguide adapter that couples light between an external light source—e.g., a fiber optic cable or laser—and a silicon waveguide on the silicon surface layer of the SOI device. In one embodiment, the waveguide adapter is embedded into the insulator layer. Doing so may enable the waveguide adapter to be formed before the surface layer components are added onto the SOI device. Accordingly, fabrication techniques that use high-temperatures may be used without harming other components in the SOI device—e.g., the waveguide adapter is formed before heat-sensitive components are added to the silicon surface layer.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: August 21, 2018
    Assignee: Cisco Technology, Inc.
    Inventors: Mark Webster, Ravi Sekhar Tummidi
  • Patent number: 10036933
    Abstract: A two-dimensional photonic crystal in which are inserted four waveguides and a resonant cavity. Owing to the existence of the photonic band gap, an electromagnetic signal propagating through the device is confined within the guides and the cavity and, through the adjustment of the orientation of a dipole mode generated within the cavity, is able to function in three distinct regimes. In regime 1, subjected to an external DC magnetic field +H0, it functions as a two-way divider, with isolation of the input relative to the two outputs, and, upon reversal of the field signal, it functions as an optical key. In regime 2, with the use of a DC magnetic field ?H0, it functions as a waveguide bender, with the input isolated from the output, and, upon reversal of the field signal, functions as an optical key. In regime 3, subject to the application of an external DC magnetic field +H1, the device functions as a three-way divider.
    Type: Grant
    Filed: October 6, 2015
    Date of Patent: July 31, 2018
    Assignee: UNIVERSIDADE FEDERAL DO PARA-UFPA
    Inventors: Victor Dmitriev, Gianni Masaki Tanaka Portela
  • Patent number: 9983368
    Abstract: An optical waveguide device includes a wiring substrate, a first cladding layer formed on the wiring substrate, a base protective layer formed on the first cladding layer and formed into a certain pattern, a core layer formed on the first cladding layer and the base protective layer, a recess portion having an inclined surface and formed from the core layer to the base protective layer, an optical path conversion mirror formed on the inclined surface, and a second cladding layer formed on the first cladding layer and the core layer. A refractive index of the base protective layer is smaller than a refractive index of the core layer. A width of the base protective layer is equal to or greater than a width of the core layer.
    Type: Grant
    Filed: March 9, 2017
    Date of Patent: May 29, 2018
    Assignee: SHINKO ELECTRIC INDUSTRIES CO., LTD.
    Inventor: Kazunao Yamamoto
  • Patent number: 9978410
    Abstract: A heat assisted magnetic recording (HAMR) write apparatus has a media-facing surface (MFS) and includes a pole, coil(s) and a waveguide. The waveguide is optically coupled with a laser and directs energy toward the MFS. The waveguide includes an entrance, a bottom and a mode converter having a core, an inner cladding, high index layer(s) and an outer cladding. The core has sides that diverge in width. The core has a first index of refraction. The outer cladding has a second index of refraction less than the first index of refraction. The inner cladding has a third index of refraction not greater than the second index of refraction. The inner cladding is between the high index layer(s) and the core. The high index layer(s) are between the inner and outer cladding. The high index layer(s) have a high index of refraction greater than the second index of refraction.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: May 22, 2018
    Assignee: WESTERN DIGITAL (FREMONT), LLC
    Inventors: Michael V. Morelli, Sergei Sochava
  • Patent number: 9939581
    Abstract: It is difficult to actualize a semiconductor optical waveguide having desired properties that reflect design even when process technology for a semiconductor electronic circuit is applied as is to the production of a semiconductor optical waveguide. The present invention includes: a substrate; a semiconductor optical waveguide structure arranged on the substrate; a planar region formed around the semiconductor optical waveguide structure on the substrate; and a semiconductor dummy structure that is arranged around the planar region on the substrate and is formed of a plurality of dummy patterns, wherein the semiconductor optical waveguide structure includes a line-symmetric pattern on a plane that is parallel to the substrate; and the plurality of dummy patterns are arranged symmetrically with respect to the symmetry axis of the line-symmetric pattern.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: April 10, 2018
    Assignee: NEC Corporation
    Inventor: Morio Takahashi
  • Patent number: 9939565
    Abstract: A reflective element for directing an optical signal into a fiber optic sensor having an optical fiber includes a plane containing a sharply defined straight line that separates between a first area of low reflectivity and a second area of high reflectivity. The plane is disposed parallel to a free end surface of the optical fiber so that the free end surface intersects the line of the reflective element, whereby relative movement between the free end surface of the optical fiber and the line in response to a physical change sensed by the fiber optic sensor induces variations in an optical signal reflected by the reflective element through the optical fiber, which variations allow measurement of the physical change.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: April 10, 2018
    Assignee: Qualitrol Company LLC
    Inventors: Yuvi Kahana, Alexander Kots, Alexander Paritsky
  • Patent number: 9910217
    Abstract: A method of fabricating a waveguide device is disclosed. The method includes providing a substrate having an elector-interconnection region and a waveguide region and forming a patterned dielectric layer and a patterned redistribution layer (RDL) over the substrate in the electro-interconnection region. The method also includes bonding the patterned RDL to a vertical-cavity surface-emitting laser (VCSEL) through a bonding stack. A reflecting-mirror trench is formed in the substrate in the waveguide region, and a reflecting layer is formed over a reflecting-mirror region inside the waveguide region. The method further includes forming and patterning a bottom cladding layer in a wave-tunnel region inside the waveguide region and forming and patterning a core layer and a top cladding layer in the waveguide region.
    Type: Grant
    Filed: May 18, 2015
    Date of Patent: March 6, 2018
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Chun-Hao Tseng, Wan-Yu Lee, Hai-Ching Chen, Tien-I Bao
  • Patent number: 9885832
    Abstract: A waveguide mode expander couples a smaller optical mode in a semiconductor waveguide to a larger optical mode in an optical fiber. The waveguide mode expander comprises a shoulder made of crystalline silicon and a ridge made of non-crystalline silicon (e.g., amorphous silicon). In some embodiments, the ridge of the waveguide mode expander has a plurality of stages, the plurality of stages have different widths and/or thicknesses at a given cross section.
    Type: Grant
    Filed: May 27, 2015
    Date of Patent: February 6, 2018
    Assignee: Skorpios Technologies, Inc.
    Inventors: Damien Lambert, Nikhil Kumar, Elton Marchena, Daming Liu, Guoliang Li, John Zyskind
  • Patent number: 9864134
    Abstract: A semiconductor structure and a method for manufacturing the semiconductor structure are provided. The semiconductor structure includes a processed semiconductor substrate. The processed semiconductor substrate includes active electronic components. The semiconductor structure also includes a dielectric layer that covers, at least partially, the processed semiconductor substrate. An interface layer that is suitable for growing optically active material on the interface layer is bonded to the dielectric layer. An optical gain layer and the processed semiconductor substrate are connected through the dielectric layer by electric and/or optical contacts.
    Type: Grant
    Filed: November 27, 2013
    Date of Patent: January 9, 2018
    Assignee: International Business Machines Corporation
    Inventors: Lukas Czornomaz, Jean Fompeyrine, Jens Hofrichter, Bert Jan Offrein, Mirja Richter
  • Patent number: 9850278
    Abstract: The present invention is directed to synthetic anti-inflammatory peptides and use thereof in the treatment and prevention of inflammatory and fibrotic conditions. Specifically, the invention relates in some embodiments to short isolated peptides having the amino acid sequence Phe-Lys-Glu (FKE), Tyr-Lys-Glu (YKE) or comprising a plurality of these sequences that may be flanked by Ala/Gly (A/G) linkers. The invention further relates in some embodiments to methods for inhibiting scar formation and for treating and alleviating IL-10 dependent conditions.
    Type: Grant
    Filed: April 23, 2014
    Date of Patent: December 26, 2017
    Assignee: Carmel-Haifa University Economic Corp.
    Inventors: Amiram Ariel, Aviv Lutaty
  • Patent number: 9854687
    Abstract: This disclosure generally relates to high-speed fiber optic networks that use light signals to transmit data over a network. The disclosed subject matter includes devices and methods relating to header subassemblies and/or optoelectronic subassemblies. In some aspects, the disclosed devices and methods may relate to a header subassembly that can include: a multi-layer substrate with a bottom layer, a top layer having top thin film signal lines, and one or more intermediate layers having thick film traces between the top layer and the bottom layer, the thick film traces electrically coupled to the top thin film signal lines; and optoelectronic components positioned over the multi-layer substrate and electrically coupled with the signal lines.
    Type: Grant
    Filed: October 26, 2015
    Date of Patent: December 26, 2017
    Assignee: FINISAR CORPORATION
    Inventors: Maziar Amirkiai, Yunpeng Song, Hongyu Deng
  • Patent number: 9841566
    Abstract: A connector includes a ferrule assembly having a ferrule, a hub and a spring, the ferrule having a distal face accessible at a distal end of the connector housing, the ferrule being movable in a proximal direction relative to the connector housing. The distal and proximal positions are separated by an axial displacement distance. The ferrule proximal movement is against the spring's bias. The cable of the assembly includes an optical fiber contained within a jacket and also a strength layer between the fiber and the jacket that is anchored to the connector housing. The fiber extends through a fiber from the proximal end of the connector housing to the ferrule. The fiber has a distal portion potted within the ferrule. The fiber passage has a fiber take-up region configured to take-up an excess length of the fiber corresponding to the ferrule axial displacement.
    Type: Grant
    Filed: November 21, 2016
    Date of Patent: December 12, 2017
    Assignee: CommScope Technologies LLC
    Inventor: Ponharith Nhep
  • Patent number: 9819153
    Abstract: A semiconductor laser in a ridge waveguide structure includes: a semiconductor substrate; a lower cladding layer which is formed on the semiconductor substrate; an active layer and a semiconductor layer which are in parallel on the lower cladding layer and are connected with each other; a first upper cladding layer locally aligned above the active layer; a second upper cladding layer locally aligned above the semiconductor layer; and a third upper cladding layer locally aligned above the active layer to confine light which is guided in the active layer, wherein the semiconductor layer has a band gap which is larger than that of the active layer. According to this constitution, an optical semiconductor device with high reliability in which the ridge waveguide structure whose manufacturing is relatively easy is applied, and current diffusion and electrical crosstalk between lasers in the ridge waveguide structure are suppressed is enabled.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: November 14, 2017
    Assignee: FUJITSU LIMITED
    Inventors: Ayahito Uetake, Manabu Matsuda
  • Patent number: 9817197
    Abstract: Two semiconductor chips are optically aligned to form a hybrid semiconductor device. Both chips have optical waveguides and alignment surface positioned at precisely-defined complementary vertical offsets from optical axes of the corresponding waveguides, so that the waveguides are vertically aligned when one of the chips is placed atop the other with their alignment surface abutting each other. The position of the at least one of the alignment surface in a layer stack of its chip is precisely defined by epitaxy. The chips are bonded at offset bonding pads with the alignment surfaces abutting in the absence of bonding material therebetween.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: November 14, 2017
    Assignee: Elenion Technologies, LLC
    Inventors: David Henry Kinghorn, Ari Jason Novack, Holger N. Klein, Nathan A. Nuttall, Kishor V. Desai, Daniel J. Blumenthal, Michael J. Hochberg, Ruizhi Shi
  • Patent number: 9791611
    Abstract: The embodiments of the present invention disclose a backlight module, a liquid crystal panel and a display device. The backlight module comprises: a light guide plate (5), a plurality of polarization-maintaining optical fibers (3) and a plurality of monochrome laser light sources (1) provided at a lateral portion of the light guide plate (5). The polarization-maintaining optical fibers (3) receive the monochromatic light emitted from the monochrome laser light sources (1) respectively, and transmit the monochromatic light into the light guide plate (5).
    Type: Grant
    Filed: June 20, 2013
    Date of Patent: October 17, 2017
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Shang Wang
  • Patent number: 9784917
    Abstract: Embodiments are directed to a coupler system having an interposer configured to couple optical signals. The interposer includes at least one optoelectronic component formed on a glass substrate. The interposer further includes at least one waveguide formed on the glass substrate and configured to couple the optical signals to or from the at least one optoelectronic component, wherein the at least one waveguide comprises a waveguide material having grain diameters greater than about one micron and an optical loss less than about one decibel per centimeter of optical propagation.
    Type: Grant
    Filed: October 5, 2015
    Date of Patent: October 10, 2017
    Assignee: International Business Machines Corporation
    Inventors: Stephen M. Gates, Joyeeta Nag, Jason S. Orcutt, Jean-Olivier Plouchart, Spyridon Skordas
  • Patent number: 9746607
    Abstract: The present invention provides a waveguide structure for optical coupling. The waveguide structure includes a first waveguide embedded in a cladding of lower refractive index than the first waveguide, and a second waveguide of higher refractive index than the cladding and distanced from the first waveguide. The waveguide structure further includes an intermediate waveguide, of which at least a part is arranged between the first waveguide and the second waveguide. The first waveguide and the second waveguide each comprise a tapered end for coupling light into and/or out of the intermediate waveguide.
    Type: Grant
    Filed: May 5, 2016
    Date of Patent: August 29, 2017
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Tom Collins, Marco Lamponi
  • Patent number: 9733499
    Abstract: This slow light waveguide includes an initial region which extends, along an optical axis, from a start starting from which the width of a central waveguide begins to continuously decrease up to an end beyond which the width of the central waveguide no longer decreases up to the end of a slowing section, this initial region overlapping a broadening region where the length of lateral teeth continuously increases, a final region which extends, along the optical axis, from a start starting from which the width of the central waveguide begins to continuously increase up to an end beyond which the width of the central waveguide no longer increases, this final region overlapping a narrowing region where the length of the lateral teeth continuously decreases.
    Type: Grant
    Filed: February 16, 2017
    Date of Patent: August 15, 2017
    Assignee: Commissariat à L'Energie Atomique et aux Energies Alternatives
    Inventors: Badhise Ben Bakir, Karim Hassan
  • Patent number: 9720171
    Abstract: In accordance with the present invention, an opto-electric hybrid board in which optical wiring is freely disposed without restriction by the arrangement of electrical elements and the like, and in which high-density mounting of electrical wiring and optical wiring is possible, and an electric device including this opto-electric hybrid board are provided. An opto-electrical hybrid board (1000) of the present invention has an optical waveguide (1), an optical connector disposed at an end section of the optical waveguide (1), and an opto-electric conversion section (4) disposed below the optical waveguide (1), and a motherboard (electrical wiring board) (5) disposed below the opto-electric conversion portion (4).
    Type: Grant
    Filed: June 18, 2013
    Date of Patent: August 1, 2017
    Assignee: SUMITOMO BAKELITE CO., LTD.
    Inventor: Shinya Arai
  • Patent number: 9703125
    Abstract: Provided is a silicon-based electro-optic modulator which is small in size and capable of high speed operation. A first silicon semiconductor layer (120) doped to exhibit a first type of conductivity and a second semiconductor layer (160) doped to exhibit a second type of conductivity are at least partly stacked together, and a relatively thin dielectric (150) is formed at the interface between the stacked first and second silicon semiconductor layers (120, 160). The first silicon semiconductor layer (120) has a rib waveguide shape (130) comprising a rib portion (131) and slab portions (132). A first heavily doped region (140) formed by a high concentration doping process is arranged at a location, in the first silicon semiconductor layer (120), neighboring to each of the slab portions (132). The first heavily doped region (140) has almost the same height as that of the rib portion (131) of the rib waveguide (130).
    Type: Grant
    Filed: November 28, 2013
    Date of Patent: July 11, 2017
    Assignee: NEC CORPORATION
    Inventors: Junichi Fujikata, Shigeki Takahashi
  • Patent number: 9697854
    Abstract: A heat assisted magnetic recording (HAMR) write apparatus has a media-facing surface (MFS) and includes a pole, coil(s) and a waveguide. The waveguide is optically coupled with a laser and directs energy toward the MFS. The waveguide includes an entrance, a bottom and a mode converter having a core, an inner cladding, high index layer(s) and an outer cladding. The core has sides that diverge in width. The core has a first index of refraction. The outer cladding has a second index of refraction less than the first index of refraction. The inner cladding has a third index of refraction not greater than the second index of refraction. The inner cladding is between the high index layer(s) and the core. The high index layer(s) are between the inner and outer cladding. The high index layer(s) have a high index of refraction greater than the second index of refraction.
    Type: Grant
    Filed: July 21, 2016
    Date of Patent: July 4, 2017
    Assignee: Western Digital (Fremont), LLC
    Inventors: Michael V. Morelli, Sergei Sochava
  • Patent number: 9699883
    Abstract: A thermal switch includes a substrate having a target region and a peripheral region. A metallization array is coupled to the substrate and is positioned adjacent the target region, the metallization array including a plurality of first temperature dependent thermally conductive metallization segments and a plurality of second temperature dependent thermally conductive metallization segments. The metallization array directs heat flux toward the target region within a first temperature range and directs heat flux away from the target region within a second temperature range.
    Type: Grant
    Filed: January 8, 2015
    Date of Patent: July 4, 2017
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Ercan Mehmet Dede, Debasish Banerjee
  • Patent number: 9691828
    Abstract: The invention provides a display apparatus and a method for manufacturing the same, relates to the field of display technology, and solves the problem of low display luminance due to the existing display apparatus being affected by other film layers. A display apparatus comprises a light emitting unit and further comprises several layers of thin film located in the light emission path of the light emitting unit, and at least one of the several layers of thin film has nanoparticles.
    Type: Grant
    Filed: July 14, 2014
    Date of Patent: June 27, 2017
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhiqiang Jiao, Shibo Jiao, Chengyuan Luo
  • Patent number: 9684191
    Abstract: Techniques for increasing efficiency of thermo-optic phase shifters using multi-pass heaters and thermal bridges are provided. In one aspect, a thermo-optic phase shifter device includes: a plurality of optical waveguides formed in an SOI layer over a buried insulator; at least one heating element adjacent to the optical waveguides; and thermal bridges connecting at least one of the optical waveguides directly to the heating element. A method for forming a thermo-optic phase shifter device is also provided.
    Type: Grant
    Filed: November 5, 2015
    Date of Patent: June 20, 2017
    Assignee: International Business Machines Corporation
    Inventors: Douglas M. Gill, Chi Xiong
  • Patent number: 9684220
    Abstract: Embodiments of the present disclosure are directed toward techniques and configurations for phase offset adjustment in an electro-optical modulator. In one embodiment, the apparatus may include an electro-optical modulator having first and second arms, to modulate light passing through the arms according to an electrical data signal provided to the electro-optical modulator, to output an optical data signal that combines first and second light portions outputted by the first and second arms respectively; and a control module to convert the first and second light portions into first and second power signals indicative of respective phases of the first and second light portions, determine a balance between the first and second power signals, and adjust a phase of one of the first or second light portions, to achieve a bias point to provide the balanced optical data signal. Other embodiments may be described and/or claimed.
    Type: Grant
    Filed: December 11, 2014
    Date of Patent: June 20, 2017
    Assignee: Intel Corporation
    Inventor: Robert M. Beatty
  • Patent number: 9638878
    Abstract: An optical coupling device including a housing, a first optical port provided on the housing, a second optical port provided on the housing and configured to couple to an optical fiber cable, an optical signal path guiding optical signals between the first and second optical port, a monitoring device provided on the housing, and an decoupling element optically coupled to the optical signal path and the monitoring device for coupling an optical monitoring signal coupled out from the optical signals guided between the first and second optical port onto the monitoring device. Furthermore, an optical communication system is provided, the system including an optical module with an optical signal processing device, the optical signal processing device being configured for at least one of receiving optical signals by a receiving device and transmitting optical signals by an optical signal source, and an optical coupling device guiding the optical signals.
    Type: Grant
    Filed: May 11, 2012
    Date of Patent: May 2, 2017
    Assignee: FCI Asia Pte. Ltd.
    Inventors: Sven Klinkicht, Alexander Eichler-Neumann, Gaul Holger
  • Patent number: 9640389
    Abstract: A layer structure and method of fabrication of a semiconductor heterostructure containing a two-dimensional electron gas (2DEG), two-dimensional hole gas (2DHG), or a two-dimensional electron/hole gas (2DEHG). The heterostructure contains a quantum well layer with 2DEG, 2DHG, or 2DEHG embedded between two doped charge reservoir layers and at least two remote charge reservoir layers. Such scheme allows reducing the number of scattering ions in the proximity of the quantum well as well a possibility for a symmetric potential for the electron or hole wavefunction in the quantum well, leading to significant improvement in carrier mobility in a broad range of 2DEG or 2DHG concentration in the quantum well. Embodiments of the invention may be applied to the fabrication of galvano-magnetic sensors, HEMT, pHEMT, and MESFET devices.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: May 2, 2017
    Assignee: BROLIS SEMICONDUCTORS LTD.
    Inventors: Augustinas Vizbaras, Kristijonas Vizbaras
  • Patent number: 9638981
    Abstract: An optical device comprises a first optical coupler configured to receive a light signal and provide a first output and a second output, a first optical waveguide in optical communication with the first output and configured to provide a first optical path for a first portion of the light signal, and a second optical waveguide in optical communication with the second output and configured to provide a second optical path for a second portion of the light signal, wherein the first optical waveguide is configured to provide a phase differential between the first optical path and the second optical path, wherein the second optical waveguide is positioned according to a lateral thermal diffusion length associated with the first optical waveguide, and wherein the lateral thermal diffusion length is a spreading distance of a thermal effect in a direction about perpendicular to the first optical path.
    Type: Grant
    Filed: February 24, 2015
    Date of Patent: May 2, 2017
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Patrick Dumais, Lukas Chrostowski
  • Patent number: 9632216
    Abstract: An optical modulation device includes a plasmonic nano-antenna layer, a metal layer that faces the plasmonic nano-antenna layer, and a permittivity variation layer and a dielectric material layer between the plasmonic nano-antenna layer and the metal layer. An active area formed in the permittivity variation layer according to an external signal may function as a gate that controls optical modulation performance.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: April 25, 2017
    Assignees: SAMSUNG ELECTRONICS CO., LTD., CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Seunghoon Han, Yao-Wei Huang, Harry A. Atwater, Ho Wai Lee, Ruzan Sohkoyan, Georgia Papadakis, Krishnan Thyagarajan
  • Patent number: 9614119
    Abstract: An Si/Ge SACM avalanche photo-diodes (APD) having low breakdown voltage characteristics includes an absorption region and a multiplication region having various layers of particular thicknesses and doping concentrations. An optical waveguide can guide infrared and/or optical signals or energy into the absorption region. The resulting photo-generated carriers are swept into the i-Si layer and/or multiplication region for avalanche multiplication. The APD has a breakdown bias voltage of well less than 12 V and an operating bandwidth of greater than 10 GHz, and is therefore suitable for use in consumer electronic devices, high speed communication networks, and the like.
    Type: Grant
    Filed: December 29, 2011
    Date of Patent: April 4, 2017
    Assignee: INTEL CORPORATION
    Inventors: Yimin Kang, Han-Din Liu
  • Patent number: 9507060
    Abstract: Optical films, and organic-light-emitting display apparatuses, include a high refractive index pattern layer including a first surface and a second surface facing each other. The first surface includes a pattern having grooves. The grooves each have a curved surface and a depth greater than a width. The high refractive index pattern layer is formed of a material having a refractive index greater than 1. Further included is a low refractive index pattern layer formed of a material having a refractive index smaller than that of the material constituting the high refractive index pattern layer. The low refractive index pattern layer includes a filling material for filling grooves. A tilt angle, ?, of each groove satisfies the following condition, 15°???75°.
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: November 29, 2016
    Assignees: Samsung Electronics Co., Ltd., Corning Precision Materials Co., Ltd., Cheil Industries Inc.
    Inventors: Hong-shik Shim, Eun-young Cho, Hyun-min Kim, You-min Shin, Young Oh, Chul-ho Jeong, Eui-soo Kim
  • Patent number: 9500813
    Abstract: A connector includes a ferrule assembly having a ferrule, a hub and a spring, the ferrule having a distal face accessible at a distal end of the connector housing, the ferrule being movable in a proximal direction relative to the connector housing. The distal and proximal positions are separated by an axial displacement distance. The ferrule proximal movement is against the spring's bias. The cable of the assembly includes an optical fiber contained within a jacket and also a strength layer between the fiber and the jacket that is anchored to the connector housing. The fiber extends through a fiber from the proximal end of the connector housing to the ferrule. The fiber has a distal portion potted within the ferrule. The fiber passage has a fiber take-up region configured to take-up an excess length of the fiber corresponding to the ferrule axial displacement.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: November 22, 2016
    Assignee: CommScope Technologies LLC
    Inventor: Ponharith Nhep
  • Patent number: 9494737
    Abstract: In a method, a substrate is provided and is implanted with argon ions to form an argon ion modified layer. Two slots are defined and extend through the argon ion modified layer to form a ridge. The substrate is etched to change the ridge into a beveled ridge. An etching rate of the argon ion modified layer is higher than that of the substrate. The beveled ridge is diffused with metal to form a beveled ridge waveguide.
    Type: Grant
    Filed: April 29, 2014
    Date of Patent: November 15, 2016
    Assignee: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: Bing-Heng Lee