Patents Examined by Mary El-Shammaa
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Patent number: 11314026Abstract: An edge-attachable (EA) optical connector includes an optical connector housing for an optical connector. The optical connector housing includes a slot that aligns with a module board edge finger electrical connector, such that the optical connector housing can be slid over a module board edge finger electrical connector and attached to the module board edge. An optical connector on one end of an optical fiber bundle or ribbon fits within the optical connector housing. When the optical connector housing is attached to the module board edge, the optical connector blind mates with a host optical connector supported by a bracket to which a host electrical connector is attached. An optical connector on another end of the optical fiber bundle or ribbon mates with a module board optical connector. The module board optical connector may include an optical socket mounted on an opto-electronic chip disposed on the module board.Type: GrantFiled: November 19, 2018Date of Patent: April 26, 2022Assignee: Hewlett Packard Enterprise Development LPInventors: Kevin B. Leigh, John Norton, Michael R. Krause
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Patent number: 11300744Abstract: This disclosure describes a sealing body (2) for sealing a telecommunication cable in a port entry device. The sealing body has a) a passageway for receiving a section of the cable, b) a base (31) forming a first axial portion of the passageway, and c) a segmented tubular wall (40, 41), elastically deformable and radially compressible, forming an adjacent second axial portion of the passageway.Type: GrantFiled: October 25, 2019Date of Patent: April 12, 2022Assignee: Corning Research & Development CorporationInventor: Christophe Desard
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Patent number: 11262522Abstract: The present disclosure provides an optical fiber cable. The optical fiber cable includes at least one optical fiber ribbon stack. In addition, the at least one optical fiber ribbon stack includes a plurality of stacked ribbons. Further, each ribbon of the plurality of stacked ribbons includes a plurality of optical fibers. The plurality of optical fibers includes edge fibers. The edge fibers are defined as the at least one optical fiber having a mach number of at most 7.2 disposed at a first end and a second end of a first ribbon and a last ribbon of the plurality of stacked ribbons.Type: GrantFiled: December 18, 2018Date of Patent: March 1, 2022Assignee: STERLITE TECHNOLOGIES LIMITEDInventors: Sravan Kumar, Kishore Sahoo, Kavya Chintada, Venkatesh Murthy, Atul Mishra, Pavan Moturu, kangabam tenzing
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Patent number: 11256036Abstract: Aspects of the present disclosure relate to a multi-fiber fiber optic connector having a connector body, a multi-fiber ferrule supported at a distal end of the connector body, a spring for biasing the multi-fiber ferrule in a distal direction and a spring push retaining the spring and the ferrule within the connector body. The spring push including oppositely positioned spring support shelves that provide spring seating and provide spring stability during side loading.Type: GrantFiled: November 8, 2019Date of Patent: February 22, 2022Assignee: CommScope Technologies LLCInventor: Yu Lu
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Patent number: 11251580Abstract: An integrated optical device, including: a semiconductor body delimited by a top surface; and at least one buried cavity, which extends in the semiconductor body, at a distance from the top surface, so as to delimit at the bottom a front semiconductor region, which functions as an optical guide.Type: GrantFiled: October 30, 2019Date of Patent: February 15, 2022Assignee: STMICROELECTRONICS S.R.L.Inventors: Flavio Francesco Villa, Guido Chiaretti, Gabriele Barlocchi
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Patent number: 11249237Abstract: There is provided an optical device that provides a high quality image. The optical device includes a first light guiding member that has first through sixth surfaces and a first deflecting means. The first, second, and fifth surfaces are opposed to the third, fourth, and sixth surfaces, respectively. The optical device further includes a second light guiding member that has seventh through twelfth surfaces and a second deflecting means. The seventh, eighth, and eleventh surfaces are opposed to the ninth, tenth, and twelfth surfaces, respectively. Light that enters from the fifth surface is totally reflected within the first light guiding member, is deflected by the first deflecting means, is emitted from the third surface, enters the eighth surface, is totally reflected between the seventh surface and the ninth surface, is deflected by the second deflecting means, and is emitted from the seventh surface.Type: GrantFiled: April 11, 2018Date of Patent: February 15, 2022Assignee: SONY CORPORATIONInventors: Masatoshi Nakamura, Ichiro Tsujimura, Tatsuya Nakatsuji, Takatoshi Matsuyama
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Patent number: 11243365Abstract: Methods for providing flammability protection for plastic optical fiber (POF) embedded inside avionics line replaceable units (LRUs) or other equipment used in airborne vehicles such as commercial or fighter aircrafts. A thin and flexible flammability protection tube is placed around the POF. In one proposed implementation, a very thin (100 to 250 microns in wall thickness) polyimide tube is placed outside and around the POF cable embedded inside an LRU or other equipment. The thin-walled polyimide tube does not diminish the flexibility of the POF cable.Type: GrantFiled: November 16, 2018Date of Patent: February 8, 2022Assignee: The Boeing CompanyInventors: Dennis G. Koshinz, Eric Y. Chan, Tuong K. Truong, Henry B. Pang, Kim Quan Anh Nguyen
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Patent number: 11237342Abstract: A fiber optic connector with a rotatable housing integrated with a connection member for converting the connector from a first polarity to a second polarity, and a manipulator assembly comprising the rotatable housing and a locking member movable between a locked position and an unlocked position, the manipulator assembly being coupled to the connection member such that the manipulator assembly and the connection member rotate conjointly about the axis of rotation, and when in locked position connector polarity cannot be changed.Type: GrantFiled: June 28, 2019Date of Patent: February 1, 2022Assignee: Senko Advanced Components, Inc.Inventors: Kenji Iizumi, Kazuyoshi Takano, Yohei Aoshima, Daizo Nishioka, Man Ming Ho
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Patent number: 11231551Abstract: An optical device is formed of a plurality of optical parts arranged on a carrier, at least one optical element of which has a main face provided with a first microstructured zone for intercepting incident luminous radiation propagating along a first determined optical path, the first microstructured zone spatially modifying the phase of the incident luminous radiation according to a determined spatial profile. The first microstructured zone is used to form, via a plurality of reflections or transmissions off/through the one or more optical elements, transformed luminous radiation. The optical device comprises an input stage for guiding the injection of positioning luminous radiation, along a second optical path, and the main surface of the optical element includes a second microstructured zone that is configured to reflect the positioning luminous radiation and to back-propagate the positioning radiation along the second optical path.Type: GrantFiled: December 17, 2018Date of Patent: January 25, 2022Assignee: CAILabsInventors: Guillaume Labroille, Nicolas Barré
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Patent number: 11221446Abstract: A monolithic laser device assembly 10A in the present disclosure includes a first gain portion 20 having a first end portion 20A and a second end portion 20B, a second gain portion 30 having a third end portion 30A and a fourth end portion 30B, one or multiple ring resonators 40, a semiconductor optical amplifier 50 for amplifying a laser light emitted from the first gain portion 20, and a pulse selector 60 disposed between the first gain portion 20 and the semiconductor optical amplifier 50, in which the ring resonator 40 is optically coupled with the first gain portion 20 and with the second gain portion 30, and laser oscillation is performed on either the first gain portion 20 or the second gain portion 30.Type: GrantFiled: February 16, 2018Date of Patent: January 11, 2022Assignee: SONY CORPORATIONInventors: Rintaro Koda, Shunsuke Kono
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Patent number: 11215755Abstract: A mode converter formed by parallel tapered waveguides on a SiN platform. The waveguides form a trident structure comprising a main waveguide with an inverse taper structure, and a pair of waveguides on each side of the main waveguide. Each adjacent waveguide has a taper structure but one that is opposed to that of the main waveguide, namely, a width that gradually increases along the direction of light propagation to a larger value at an end tip thereof. The end tips of the waveguides terminate along a common input/output facet of the converter. The adjacent waveguides help to shape the mode of the light propagating through the main waveguide, in so doing enabling the converter to exhibit high coupling efficiency and polarization independence in the full optical communication bands (i.e., from O to L-band) by successfully tuning the mode shape at a chip facet. The trident mode converter enables efficient optical fiber-to-chip coupling.Type: GrantFiled: September 19, 2019Date of Patent: January 4, 2022Assignee: GenXComm, Inc.Inventors: Ke Liu, Thien-An Nguyen
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Patent number: 11214120Abstract: A disclosed vehicle sensing system includes an optic fiber disposed adjacent to a vehicle panel, a transmitter/receiver disposed at an originating end of the optic fiber, the transmitter/receiver configured to emit a beam through the optic fiber at a defined originating frequency, and a reflector disposed at a terminal end of the optic fiber for reflecting the beam back through the optic fiber to the transmitter/receiver. Dimensional changes to the optic fiber change the originating frequency reflected back to the transmitter/receiver and the change in the originating frequency is indicative of a physical change in the vehicle panel.Type: GrantFiled: November 2, 2018Date of Patent: January 4, 2022Assignee: Continental Automotive Systems, Inc.Inventors: Agustin Filoteo Razo, Abdiel Ortega Méndez, Omar Reyes Barón, Karla Pedraza Ontiveros, Humberto Diaz Escobar
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Patent number: 11194098Abstract: An optical waveguide comprises at least two TIR surface and contains a grating. Input TIR light with a first angular range along a first propagation direction undergoes at least two diffractions at the grating. Each diffraction directs light into a unique TIR angular range along a second propagation direction.Type: GrantFiled: January 3, 2020Date of Patent: December 7, 2021Assignees: DigiLens Inc., Rockwell Collins Inc.Inventors: Jonathan David Waldern, Alastair John Grant, Milan Momcilo Popovich, James H. Stanley, Robert D. Brown
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Patent number: 11187853Abstract: An optical fiber comprising: (a) a core having an outer radius r1; (b) a cladding having an outer radius r4<32.5 microns; (c) a primary coating surrounding the cladding having an outer radius r5, a thickness tP>8 microns, in situ modulus EP?0.35 MPa and a spring constant ?P<2.0 MPa, where ?P=2EP r4/tP; and (d) a secondary coating surrounding said primary coating, the secondary coating having an outer radius r6 and a thickness tS=r6?r5, and in situ modulus ES of 1200 MPa or greater; tS>8 microns, r6?56 microns. The fiber has a mode field diameter MFD greater than 8.2 microns at 1310 nm; a fiber cutoff wavelength of less than 1310 nm; and a bend loss at a wavelength of 1550 nm, when wrapped around a mandrel having a diameter of 10 mm, of less than 1.0 dB/turn.Type: GrantFiled: April 23, 2019Date of Patent: November 30, 2021Assignee: Corning IncorporatedInventors: Kevin Wallace Bennett, Scott Robertson Bickham, Pushkar Tandon, Ruchi Tandon
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Patent number: 11181687Abstract: An optical fiber comprising: a core having an outer radius r1; a cladding having an outer radius r4<45 microns; a primary coating surrounding the cladding and having an outer radius r5 and a thickness tp>8 microns, the primary coating having in situ modulus EP of 0.35 MPa or less and a spring constant ?P<1.6 MPa, where ?P=2EP r4/tP; and a secondary coating surrounding said primary coating, the secondary coating having an outer radius r6, a thickness tS=r6?r5, in situ modulus ES of 1200 MPa or greater, wherein >10 microns and r6?85 microns. The fiber has a mode field diameter MFD greater than 8.2 microns at 1310 nm; a cutoff wavelength of less than 1310 nm; and a bend loss at a wavelength of 1550 nm, when wrapped around a mandrel having a diameter of 10 mm, of less than 1.0 dB/turn.Type: GrantFiled: April 23, 2019Date of Patent: November 23, 2021Assignee: Corning IncorporatedInventors: Kevin Wallace Bennett, Scott Robertson Bickham, Pushkar Tandon, Ruchi Tandon, Bryan William Wakefield
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Patent number: 11181686Abstract: An optical fiber comprising: a core having an outer radius r1; a cladding having an outer radius r4?31 microns; a primary coating surrounding the cladding having an outer radius r5, a thickness tp>10 microns, in situ modulus EP of 0.5 MPa or less, and a spring constant ?P<1 MPa, where ?P=2EP r4/tP; and a secondary coating surrounding said primary coating, the secondary coating having an outer radius r6, a thickness tS=r6-r5, in situ modulus ES of 1200 MPa or greater; tS greater than 9.5 microns, wherein r6 is 50 to 67.5 microns. The fiber has a mode field diameter MFD greater than 8.2 microns at 1310 nm; a fiber cutoff wavelength of less than 1310 nm; and a bend loss at a wavelength of 1550 nm, when wrapped around a mandrel having a diameter of 10 mm, of less than 1.0 dB/turn.Type: GrantFiled: April 23, 2019Date of Patent: November 23, 2021Assignee: CORNING INCORPORATEDInventors: Kevin Wallace Bennett, Scott Robertson Bickham, Pushkar Tandon, Ruchi Tandon
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Patent number: 11175450Abstract: A method of forming an optical fiber, including: exposing a soot core preform to a dopant gas at a pressure of from 1.5 atm to 40 atm, the soot core preform comprising silica, the dopant gas comprising a first halogen doping precursor and a second halogen doping precursor, the first halogen doping precursor doping the soot core preform with a first halogen dopant and the second halogen precursor doping the soot core preform with a second halogen dopant; and sintering the soot core preform to form a halogen-doped closed-pore body, the halogen-doped closed-pore body having a combined concentration of the first halogen dopant and the second halogen dopant of at least 2.0 wt %.Type: GrantFiled: August 1, 2019Date of Patent: November 16, 2021Assignee: Corning IncorporatedInventors: Dana Craig Bookbinder, Steven Bruce Dawes, Phong Diep, Brian Lee Harper, Pushkar Tandon
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Patent number: 11175454Abstract: The invention relates to photonic circuits, in particular to photonic circuits where light is escalated transferred between optical waveguides which are coupled to photonic devices. A first waveguide on a silicon substrate is provided having a first thickness and a first refractive index. A tapered second waveguide having a second thickness less than the first thickness and a second refractive index higher than said first refractive index is deposited on the first waveguide. At least one layer of an optically active material comprising a photonic device is deposited on the first waveguide adjacent to the second waveguide. The photonic device is interfaced with the wide end of the tapered second waveguide to provide an optical coupling, and the opposite narrow end of the tapered second waveguide is interfaced on top of the first waveguide to provide adiabatic light transfer between said first and second waveguides.Type: GrantFiled: April 23, 2018Date of Patent: November 16, 2021Assignee: Teknologian tutkimuskeskus VTT OyInventors: Matteo Cherchi, Timo Aalto, Sanna Arpiainen
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Patent number: 11163110Abstract: The present disclosure provides a preparation method of an optical fiber device having a polymer micronano structure integrated in an optical fiber, the method comprising: welding a hollow optical fiber so that the hollow optical fiber is welded between two solid optical fibers, ablating the welded hollow optical fiber utilizing a femtosecond laser ablation technology so that a channel vertical to an inner wall is ablated on the hollow optical fiber, filling a colorless and transparent liquid photoresist material inside the hollow optical fiber which has been ablated so that the inside of the hollow optical fiber is filled with the photoresist material, and polymerizing on the photoresist material inside the hollow optical fiber utilizing a femtosecond laser two-photon polymerization technology.Type: GrantFiled: November 4, 2019Date of Patent: November 2, 2021Assignee: SHENZHEN UNIVERSITYInventors: Changrui Liao, Yiping Wang, Chi Li, Lei Xu
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Patent number: 11156788Abstract: Semiconductor package with one or more optical die(s) embedded therein is disclosed. The optical die(s) may have one or more overlying interconnect layers. Electrical contact to the optical die may be via the one or more overlying interconnect layers. An optical waveguide may be disposed next to the optical die and embedded within the semiconductor package. An optical fiber may be optically coupled to the optical waveguide.Type: GrantFiled: July 14, 2016Date of Patent: October 26, 2021Assignee: Intel CorporationInventors: Vivek Raghunathan, Myung Jin Yim