Patents Examined by Eric Wong
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Patent number: 10365439Abstract: The disclosure generally relates to sets of optical waveguides such as optical fiber ribbons and embedded optical waveguides, and optical interconnects useful for connecting multiple optical waveguides such as in optical fiber ribbon cables and printed circuit boards (PCBs) having optoelectronic capabilities. In particular, the disclosure provides an efficient, compact, and reliable optical waveguide connector that incorporates microlenses and re-directing elements which combine the features of optical waveguide alignment, along with redirecting and shaping of the optical beam.Type: GrantFiled: August 4, 2016Date of Patent: July 30, 2019Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Ding Wang, Terry L. Smith
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Patent number: 10359571Abstract: For multi-mode interference (MMI) couplers that have a plurality of input and output ports, e.g. 4×4, a large number of modes may be supported in the multimode region, e.g. >10, as the width of the MMI core grows larger. In order for MMI couplers to form good images, the supported modes preferably have low modal phase error, which can't be achieved using a conventional single layer design. Accordingly, a multi-mode interference (MMI) coupler comprising an MMI core comprising a plurality of waveguide core strips alternating with a plurality of cladding strips solves the aforementioned problems.Type: GrantFiled: June 26, 2018Date of Patent: July 23, 2019Assignee: Elenion Technologies, LLCInventor: Alexandre Horth
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Patent number: 10359555Abstract: A lighting system is disclosed. The lighting system comprises at least one light source comprising a light emitting diode (LED) and one or more phosphors optically coupled to the LED to convert at least a portion of original light emitted by the LED to provide a modified LED light having a first predetermined spectral output, and an optical material that is optically coupled to at least a portion of a surface of a light guide plate and optically coupled to receive at least a portion of the modified LED light and to convert at least a portion of the modified LED light to at least one predetermined wavelength to provide modified light having a second predetermined spectral output, wherein the optical material comprises one or more types of quantum confined semiconductor nanoparticle. A device including a lighting system is also disclosed.Type: GrantFiled: April 9, 2018Date of Patent: July 23, 2019Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Seth Coe-Sullivan, John R. Linton, Daniel Cohen, John E. Ritter
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Patent number: 10359577Abstract: Fiber optic connectors and connectorized fiber optic cables include connector housings having locking portions defined on the connector housing that allow the connector housing to be selectively coupled to a corresponding push-button securing member of a multiport assembly. Methods for selectively connecting a fiber optic connector to, and disconnecting the fiber optic connector from the multiport assemblies allow for connector housings to be forcibly and nondestructively removed from the multiport assembly.Type: GrantFiled: June 26, 2018Date of Patent: July 23, 2019Assignee: Corning Research & Development CorporationInventors: Thierry Luc Alain Dannoux, Joel Christopher Rosson, Felice Scotta
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Patent number: 10359591Abstract: A telecommunications assembly including a housing and a plurality of modules mounted within the housing. The modules includes a rear face in which is mounted at least one fiber optic connector. Within an interior of the housing are positioned at least one fiber optic adapters. Inserting the module through a front opening of the housing at a mounting location positions the connector of the module for insertion into and mating with the adapter of the housing. The adapters within the interior of the housing are mounted to a removable holder. A method of mounting a telecommunications module within a chassis.Type: GrantFiled: May 7, 2018Date of Patent: July 23, 2019Assignee: CommScope Technologies LLCInventors: Steven C. Zimmel, Ponharith Nhep, Trevor D. Smith
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Patent number: 10345516Abstract: [Object] In an optical fiber cable including a plurality of optical fiber units each formed by tying optical fibers in a bundle, preferable water resistance is to be achieved without increasing an outer diameter of the optical fiber cable. [Solution] An optical fiber cable includes: a plurality of optical fiber units each including a plurality of optical fibers and a bundling member wound around an outer periphery of a bundle of the plurality of optical fibers, the bundling member having a surface to which a water-absorbent granular substance is detachably attached.Type: GrantFiled: April 28, 2015Date of Patent: July 9, 2019Assignees: FUJIKURA LTD., NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Yoshie Sajima, Kouji Tomikawa, Ken Osato, Masayoshi Yamanaka, Naoki Okada, Shinya Hamaguchi, Naoki Nakagawa, Yusuke Yamada, Hisaaki Nakane
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Patent number: 10345546Abstract: A cable management structure (100, 200, 300) for an optical fiber distribution rack (10) is disclosed. In one aspect, the cable management structure (100) supports cables extending from an optical fiber distribution element (50) supported by the rack (10). In one embodiment, a plurality of first cable support guides (102a) are vertically aligned along a first plane (190) while a plurality of second cable support guides (102b) are vertically aligned along a second plane (192). As presented, the first cable support guides (102a) are offset from the second cable support guides (102b) such that the first plane (190) is horizontally recessed from the second plane (192). In one embodiment a side channel frame (130) is provided to support the cable support guides (102). In another embodiment, the optical fiber distribution element (50) is provided with linearly spaced mounting arrangements (60) configured for engagement with cable support guides (202, 302).Type: GrantFiled: March 22, 2018Date of Patent: July 9, 2019Assignee: CommScope Connectivity Belgium BVBAInventors: Johan Geens, Pieter Vermeulen, Eric Marcel M Keustermans, Lodewijk Van Noten
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Patent number: 10338325Abstract: Systems and methods for nanofiller in an optical interface are provided. One system includes a fiber-optic interface for one or more optical fibers that includes a body including one or more grooves defined therein. At least one groove in the one or more grooves is configured to receive a corresponding optical fiber of the one or more optical fibers. The at least one groove of the one or more grooves is further configured to receive an adhesive to attach the body to a portion of the corresponding optical fiber. Further, fiber-optic interface includes a suspended structure associated with the at least one groove configured to couple light between the suspended structure and the corresponding optical fiber. Also, the adhesive comprises nanofiller configured to support an alignment of the suspended structure with the corresponding optical fiber within the at least one groove.Type: GrantFiled: June 1, 2018Date of Patent: July 2, 2019Assignee: International Business Machines CorporationInventors: Barnim Alexander Janta-Polczynski, Tymon Barwicz, Elaine Cyr, Nicolas Boyer, Marie-Claude Paquet, Richard D. Langlois, Paul Francis Fortier
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Patent number: 10338315Abstract: Systems and methods are disclosed for splicing crystal fibers to silica glass fibers. Embodiments of the present disclosure provide mechanically stable bonds with negligible optical transmission loss by splicing fibers through a thermally enhanced reaction bonding process at lower temperatures than the melting point of the crystal. In an embodiment, mixing of the materials at elevated temperatures forms a stable intermediary material which enhances strength and reduces the transmission losses.Type: GrantFiled: October 16, 2017Date of Patent: July 2, 2019Assignee: The Government of the United States of America, as represented by the Secretary of the NavyInventors: Rajesh Thapa, Rafael R. Gattass, Daniel J. Gibson, Woohong Kim, L. Brandon Shaw, Jasbinder S. Sanghera
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Patent number: 10338416Abstract: Coupling modulation of an optical resonator employs a variable modal index to provide modulation of optical signal coupling. A coupling-modulated optical resonator includes an optical resonator having a coupled portion and a bus waveguide having a modulation section adjacent to and coextensive with and separated by a gap from the coupled portion. The modulation section is to modulate coupling of an optical signal between the optical resonator and the bus waveguide according to a variable difference between a modal index of the bus waveguide modulation section and a modal index of the optical resonator coupled portion.Type: GrantFiled: October 15, 2013Date of Patent: July 2, 2019Assignee: Hewlett Packard Enterprise Development LPInventors: Di Liang, David A. Fattal
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Patent number: 10310181Abstract: Barium titanate thin film waveguides and related modulator and devices with photonic crystal structures to promote wide bandwidths, low operating voltages and small footprint.Type: GrantFiled: April 17, 2017Date of Patent: June 4, 2019Assignee: NORTHWESTERN UNIVERSITYInventors: Bruce W. Wessels, Zhifu Liu, Peter D. Girouard
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Patent number: 10310199Abstract: Provided are an optical module and a transmission equipment in which a decrease in yield due to brazing or soldering is suppressed. Provided is an optical module including a semiconductor optical element, a stem, and a wiring substrate. The stem includes one or more lead terminals. The wiring substrate includes one or more openings through which the one or more lead terminals, respectively, pass. The stem has a placing surface on which the wiring substrate is placed, and two protrusion portions that are arranged on both external sides, respectively, of the wiring substrate. The wiring substrate further includes a ground conductor layer being positioned on a rear surface and two ground conductor patterns that are arranged on regions, respectively, that are in the vicinity of the two protrusion portions, of a front surface, and are electrically connected to the ground conductor layer.Type: GrantFiled: December 7, 2017Date of Patent: June 4, 2019Assignee: Oclaro Japan, Inc.Inventors: Daisuke Noguchi, Kazuhiro Komatsu
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Patent number: 10302862Abstract: A waveguide corner structure includes a plate on which mirrors are formed; and a waveguide member including waveguide cores and holes, each of the holes being drilled in a portion replacing an angular bent portion of corresponding waveguide cores. The plate is mounted on the waveguide member so that each of the mirrors is inserted in corresponding one of the holes for a change of a direction of a light beam at the portion of corresponding waveguide cores.Type: GrantFiled: October 30, 2017Date of Patent: May 28, 2019Assignee: International Business Machines CorporationInventors: Jean Benoit Heroux, Hsiang Han Hsu
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Patent number: 10295735Abstract: Few mode optical fibers for mode division multiplexing. The Few Mode Fiber supporting 25 or 30 LP guided modes and includes a graded index core with a ?-profile, a radius R1 (at 0 refractive index difference) between 23 and 27 ?m and a maximum refractive index difference Dn1 between 14·10?3 and 17·10?3, and an end of the ?-profile at a radius R1b, with index difference Dn1b; a trench surrounding the core with radius R3 between 30 and 40 ?m and refractive index difference Dn3 between ?15·10?3 and ?6·10?3. Such a FMF shows a specific design of the interface between the core and the cladding such that R1b>R1, Dn1b between ?10·10?3 and ?3·10?3, and Dn1b?Dn3?0.9×10?3.Type: GrantFiled: February 8, 2016Date of Patent: May 21, 2019Assignee: Draka Comteq BVInventors: Pierre Sillard, Denis Molin, Marianne Bigot
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Patent number: 10295777Abstract: Aspects of the present disclosure relate to a cable bend radius guide. The cable bend radius guide comprises a flexibly rigid linear material of a predetermined length having a plurality of pairs of corresponding bend radius markers each separated by a predetermined distance along the predetermined length. The cable bend radius guide further comprises at least one constraint configured to fasten a first bend radius marker and a second bend radius marker of each pair of bend radius markers together to cause a portion of the flexibly rigid linear material between the first bend radius maker and second bend radius marker of each pair of bend radius markers to generate a substantially circular loop having a minimum bend radius corresponding to a cable's minimum bend radius.Type: GrantFiled: April 17, 2018Date of Patent: May 21, 2019Assignee: International Business Machines CorporationInventor: Marco Mauricio Gutierrez Flores
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Patent number: 10295776Abstract: Enhanced traceability of cables is provided using illumination. An embodiment comprises introducing a chemiluminescent (alternatively, flourescent) solution into a chamber coupled to at least a portion of an insulating jacket that surrounds a transmission medium, the chamber being initially hollow and, in at least a portion thereof, comprised of a substance through which light is viewable, such that upon introduction of the solution through a port, light emitted by the solution is viewable through at least a portion of the chamber. In another embodiment, a first and second compartment contain a first and second substance, respectively, and are physically separated. When an opening is caused in the physical separation, the substances are allowed to mix, the substances being chosen as providing a chemiluminescent reaction upon the mixing, such that light emitted by the chemiluminescent reaction is viewable.Type: GrantFiled: July 28, 2018Date of Patent: May 21, 2019Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Eric J. Campbell, Sarah K. Czaplewski, Lee N. Helgeson, Jonathan L. Kaus, Pamela L. Lembke
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Patent number: 10295847Abstract: A dual-drive push-pull Mach-Zehnder modulator is provided that suppresses electrical common-mode signal components using differential input in order to mitigate parasitic phase shift effects. The modulator is configured with at least two phase shifting sections with each having a respective set of diodes. Drive signals for each phase shifter are swapped by swapping two waveguide arms in which the first and second set of diodes are constructed in a particular configuration such that the electric field applied by each drive signal in the second set of diodes is the negative of what such signal was in the first set of set of diodes. As the input optical signal propagates through the first waveguide arm and the second waveguide arm, each arm independently modulates the phase which are then re-combined to provide an optical output signal with at least one suppressed signal component.Type: GrantFiled: November 21, 2017Date of Patent: May 21, 2019Assignee: NOKIA SOLUTIONS AND NETWORKS OYInventors: Maarten Huberdina Pascal Tytgat, Guilhem De Valicourt, Sian Chong Jeffrey Lee, Michael Scott Eggleston
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Patent number: 10284301Abstract: A laser module can include: a laser chip having a plurality of laser diodes; a focusing lens optically coupled to each of the plurality of distinct laser diodes; and a photonic integrated circuit (PIC) having a plurality of optical inlet ports optically coupled to the plurality of laser diodes through the focusing lens. The laser module can include an optical isolator optically coupled to the focusing lens and PIC and positioned between the focusing lens and PIC. The laser chip can include a fine pitch laser array. The laser module can include a plurality of optical fibers optically coupled to an optical outlet port of the PIC. The laser module can include a hermetic package containing the laser chip and having a single focusing lens positioned for the plurality of laser diodes to emit laser beams there through.Type: GrantFiled: December 19, 2017Date of Patent: May 7, 2019Assignee: FINISAR CORPORATIONInventors: Xiaojie Xu, Mark Donovan
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Patent number: 10281669Abstract: An optical receptacle for receiving an optical connector is provided. The optical receptacle may be part of an optical transceiver or an optical adapter. The optical receptacle includes an optical receptacle outer housing wall. An optical receptacle hook opening is formed within the optical receptacle outer housing wall. A receptacle hook is received within the optical receptacle housing, the receptacle hook being configured to retain an optical connector within the optical receptacle. The optical receptacle hook opening is positioned to accommodate the receptacle hook in a flexed position when an optical connector in inserted into the optical receptacle.Type: GrantFiled: July 15, 2018Date of Patent: May 7, 2019Assignee: Senko Advance Components, Inc.Inventors: Kazuyoshi Takano, Jimmy Jun-Fu Chang
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Patent number: 10267998Abstract: Embodiments described herein relate to an imaging device, a method for imaging an object, and a photonic integrated circuit. The imaging device includes at least one photonic integrated circuit. The photonic integrated circuit includes an integrated waveguide for guiding a light signal. The photonic integrated circuit also includes a light coupler optically coupled to the integrated waveguide. The light coupler is adapted for directing the light signal out of a plane of the integrated waveguide as a light beam. The imaging device also includes a microfluidic channel for containing an object immersed in a fluid medium. The microfluidic channel is configured to enable, in operation of the imaging device, illumination of the object by the light beam. In addition, the imaging device includes at least one imaging detector positioned for imaging the object illuminated by the light beam.Type: GrantFiled: December 28, 2015Date of Patent: April 23, 2019Assignee: IMEC VZWInventors: Dries Vercruysse, Pol Van Dorpe, Xavier Rottenberg, Tom Claes, Richard Stahl