Patents Examined by Michael P. Mooney
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Patent number: 10838157Abstract: A two-fiber Quad Small Form-factor Pluggable electro-optical transceiver (QSFP) currently connects to two optical fibers, one for transmission and one for reception. In accordance with an embodiment of the disclosure, a three-port optical circulator may be employed in order to achieve bidirectional transmission (BiDi) on a single fiber. The disclosure provides in accordance with an embodiment of the disclosure a miniature optical circulator that clips onto the two-fiber QSFP without protruding from the QSFP extraction lever, and is configured to mate with the two QSFP fiber connectors on one side and a single optical fiber on the other. Another embodiment provides an integrated bidirectional QSFP that is configured to mate with a single bidirectional fiber.Type: GrantFiled: August 28, 2019Date of Patent: November 17, 2020Assignee: RAD DATA COMMUNICATIONS LTD.Inventors: Tsvi Eitane, Ilan Fish
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Patent number: 10837804Abstract: An optical fiber sensor includes a first single mode fiber, a second single mode fiber, and a multimode fiber positioned between, and coupled to, the first single mode fiber and the second single mode fiber. The multimode fiber includes a graded-index core with an outer diameter between about 35 ?m and about 45 ?m. A numerical aperture of the core is between about 0.15 and about 0.25. The multimode fiber includes a cladding with an outer diameter between about 70 ?m and about 90 ?m. A coupling strength of an LP01 mode of the first single mode fiber to each of an LP02 mode and an LP03 mode of the multimode fiber is at least about 0.25.Type: GrantFiled: June 5, 2019Date of Patent: November 17, 2020Assignee: Corning IncorporatedInventor: Scott Robertson Bickham
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Patent number: 10830962Abstract: A lockable dust cap is inserted over a proximal end of an adapter assembly. The lockable dust cap has locking arms that secured the dust cap hub to the proximal end of the adapter assembly, and a grip portion that when rotated from an unlocked “0” or locked “1” position the dust cap is secured at the proximal end of the adapter. The dust cap is ingress protected with a seal and polymer shroud that covers the proximal end of the adapter. This helps to prevent moisture or debris ingress into the adapter assembly.Type: GrantFiled: November 13, 2019Date of Patent: November 10, 2020Assignee: Senko Advanced Components, Inc.Inventor: Paul Newbury
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Patent number: 10831081Abstract: A dual-differential optical modulator includes two optical waveguide arms, each including one or more phase modulating p/n junctions. The p/n junctions in each waveguide arm are electrically coupled between a same pair of single-ended transmission lines so as to be differentially push-pull modulated when the transmission line pair is connected to a differential driver. Either cathode or anode electrodes of the p/n junctions are AC coupled to the transmission lines and DC biased independently on the transmission line signals.Type: GrantFiled: September 27, 2019Date of Patent: November 10, 2020Assignee: Elenion Technologies, LLCInventors: Ariel Leonardo Vera Villarroel, Alexander Rylyakov, Yangjin Ma
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Patent number: 10830961Abstract: In one embodiment, there is provided an optical fiber sound pickup device including: a housing having a substantially cylindrical structure; a vibration diaphragm mounted to an end face of a first side end of the housing; a ferrule including a main body of a substantially cylindrical shape, at least a part of the main body being mounted in the housing by cooperating with an inner wall of the housing, a head end of the main body that is close to the vibration diaphragm being separated from the vibration diaphragm by a distance; and an optical fiber fixedly extending through into the ferrule, a head face of the optical fiber being flush with an end face of the head end. A method and an equipment for manufacturing an optical fiber sound pickup device are also provided.Type: GrantFiled: August 31, 2018Date of Patent: November 10, 2020Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventor: Saihua Chen
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Patent number: 10830965Abstract: The present disclosure relates to a fiber optic network architecture that uses outside plant fan-out devices to distribute optical signals between fiber distribution hubs and multi-service terminals. The network architecture can also include collector boxes positioned at selected locations of the network architecture. Additionally, patching systems can be used in facilitating upgrading the capacity of the fiber optic network.Type: GrantFiled: November 25, 2019Date of Patent: November 10, 2020Assignee: CommScope Technologies LLCInventors: Thomas G. LeBlanc, Bryan Kennedy, Erik J. Gronvall, Douglas C. Ellens
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Patent number: 10823627Abstract: Shape sensing with a multi-core fiber can achieve high accuracy as well as accommodate small bend radii by measuring signals with peripheral waveguide cores placed at multiple different radial distances from the center axis of the fiber, and computing strain metrics from signals of cores selected based on the respective radial distances and a determination of whether the waveguide cores have strained out of range.Type: GrantFiled: October 20, 2017Date of Patent: November 3, 2020Assignee: Intuitive Surgical Operations, Inc.Inventors: Eric E. Sanborn, Mark E. Froggatt, Dawn K. Gifford, Jeffrey T. LaCroix, Patrick Roye, Alexander K. Sang
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Patent number: 10824043Abstract: An optical modulation device and an apparatus including the same are provided. The optical modulation device may include a reflector, a nano-antenna array placed opposite to the reflector, and an active layer that is placed between the reflector and the nano-antenna array. The optical modulation device may further include a first insulating layer placed between the reflector and the active layer, a second insulating layer placed between the active layer and the nano-antenna array, and a wiring structure that electrically contacts the active layer. The wiring structure may be provided in at least one of a first place between the active layer and the first insulating layer and a second place between the active layer and the second insulating layer.Type: GrantFiled: September 18, 2018Date of Patent: November 3, 2020Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Junghyun Park, Sangwook Kim, Sunil Kim
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Patent number: 10809461Abstract: Optical alignment of an optical connector to input/output couplers of a photonic integrated circuit can be achieved by first actively aligning the optical connector successively to two loopback alignment features formed in the photonic chip of the PIC, optically unconnected to the PIC, and then moving the optical connector, based on precise knowledge of the positions of the loopback alignment features relative to the input/output couplers of the PIC, to a position aligned with the input/output couplers of the PIC and locking it in place.Type: GrantFiled: October 1, 2019Date of Patent: October 20, 2020Assignee: Juniper Networks, Inc.Inventors: Martin A. Spannagel, Brian Robert Koch, Jared Bauters
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Patent number: 10809548Abstract: A device, such as an electroabsorption modulator, can modulate a light intensity by controllably absorbing a selectable fraction of the light. The device can include a substrate. A waveguide positioned on the substrate can guide light. An active region positioned on the waveguide can receive guided light from the waveguide, absorb a fraction of the received light, and return a complementary fraction of the received light to the waveguide. Such absorption produces heat, mostly at an input portion of the active region. The input portion of the active region can be thermally coupled to the substrate, which can dissipate heat from the input portion, and can help avoid thermal runaway of the device. The active region can be thermally isolated from the substrate away from the input portion, which can maintain a relatively low thermal mass for the active region, and can increase efficiency when heating the active region.Type: GrantFiled: August 24, 2017Date of Patent: October 20, 2020Assignee: Juniper Networks, Inc.Inventors: Jonathan Edgar Roth, Erik Norberg
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Patent number: 10802232Abstract: An example optoelectronic module includes a housing that extends between a first end portion and a second end portion. The optoelectronic module includes a printed circuit board (“PCB”) that includes an electrical connector at the second end portion of the housing, at least one transmitter electrically coupled to the PCB and optically coupled with at least one optical fiber, at least one receiver electrically coupled to the PCB and optically coupled with at least one optical fiber, and at least one electromagnetic interference (“EMI”) attenuating component formed of a plastic material that is configured to attenuate EMI. The EMI attenuating component is configured to attenuate EMI generated by one or more other components of the optoelectronic module.Type: GrantFiled: July 23, 2019Date of Patent: October 13, 2020Assignee: II-VI Delaware Inc.Inventors: Tat Ming Teo, John Hsieh, William H. Wang, Jinxiang Liu, Hon Siu Wee, Troy Wy Piew Chiang
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Patent number: 10802224Abstract: An in-line dust shutter formed as part an adapter. A hinged dust shutter assembly is secured to an adapter wall. A shutter plate covers an opening formed at either end of the adapter to prevent debris from entering the adapter and distorting the light signal between opposing fiber optic connectors. The shutter plate extends at angle alpha from a rotational axis. The shutter plate is biased closed by a bias spring place about a pin of the rotational axis.Type: GrantFiled: November 12, 2019Date of Patent: October 13, 2020Assignee: Senko Advanced Components, Inc.Inventors: Yim Wong, Kazuyoshi Takano
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Patent number: 10802208Abstract: A measurement apparatus, including: a tapered optical fiber, the tapered optical fiber having an input to receive radiation and having an output to provide spectrally broadened output radiation toward a measurement target, the tapered optical fiber configured to spectrally broaden the radiation received at the input; and a detector system configured to receive a redirected portion of the output radiation from the measurement target.Type: GrantFiled: March 17, 2017Date of Patent: October 13, 2020Assignee: ASML Holding N.V.Inventors: King Pui Leung, Tao Chen, Ronan James Havelin, Igor Matheus Petronella Aarts, Adel Joobeur, Joseph Carbone
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Patent number: 10802226Abstract: A cleaning tool for cleaning a plurality of optical connectors where the cleaning tool includes: an adhesive portion that is integrally formed with the cleaning tool and that contacts a plurality of connecting end faces of the optical connectors collectively. The plurality of optical connectors are inserted into and connected with one housing that is fitted with another housing. The adhesive portion is disposed on the other housing. The adhesive portion contacts the connecting end faces collectively by fitting the one housing with the other housing.Type: GrantFiled: October 23, 2017Date of Patent: October 13, 2020Assignee: Fujikura Ltd.Inventors: Junichi Nakane, Kunihiko Fujiwara, Shigeo Takahashi, Akihiro Nakama, Hirotaka Asada
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Patent number: 10795101Abstract: Embodiments of the present disclosure relates to an optical module, including a bracket, and a handle and a plate both of which are connected to the bracket, where the plate is rotationally connected to the bracket, and a first end of the plate is provided with a buckle, and a second end of the plate abuts against a driving portion disposed on the handle, the driving portion is configured to: while the handle is moving along a length direction of the bracket, drive the second end of the plate that abuts against the driving portion to move, resulting in rotation of the buckle provided at the first end of the plate. On this basis, a lateral unlocking of the optical module is achieved along its length direction with a high unlocking reliability.Type: GrantFiled: March 15, 2019Date of Patent: October 6, 2020Assignee: Hisense Broadband Multimedia Technologies Co., Ltd.Inventors: Benzheng Dong, Jinlei Chen, Hongchao Pan
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Patent number: 10775567Abstract: The connector system of the present invention includes a crimp housing and a floating block. A passage extending in a longitudinal direction is formed in the crimp housing. The floating block is disposed in the passage of the crimp housing and has an interior passage extending in the longitudinal direction for receiving a back post of a connector. The floating block may make limited three-dimensional movements with respect to the crimp housing. The connectors seated in the connector system of the present invention may be independently moved with respect to each other thereby properly aligning with an adapter.Type: GrantFiled: August 8, 2019Date of Patent: September 15, 2020Assignee: Lecca Technologies Inc.Inventor: Muh-Chen Yang
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Patent number: 10775578Abstract: A fibre optic accessory for attachment to the end of an optical fibre is described, the fibre optic accessory comprising a plurality of grooves extending longitudinally along a portion of its outer surface. Using this accessory, an optical fibre to which this accessory is affixed may be installed in an installation tube with the use of a source of compressed air. A kit of parts for such an installation, an optical fibre and a method of installation are also described.Type: GrantFiled: December 8, 2017Date of Patent: September 15, 2020Assignee: Ridgemount Technologies LimitedInventors: Mark John Limbert, Christopher Russell Peters
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Patent number: 10775574Abstract: To provide an optical connector and an optical transmission module that are suitable for a plurality of optical transmission paths two-dimensionally arranged. An optical connector according to the present technology is an optical connector for a plurality of optical transmission paths arranged in a two-dimensional array and includes a first lens, a second lens, a third lens, and a fourth lens. The first lens reflects emitted light from a first optical transmission path of the plurality of optical transmission paths. The second lens reflects emitted light from a second optical transmission path of the plurality of optical transmission paths. The third lens collimates light reflected by the first lens. The fourth lens collimates light reflected by the second lens.Type: GrantFiled: December 13, 2016Date of Patent: September 15, 2020Assignee: Sony CorporationInventor: Hiizu Ootorii
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Patent number: 10775564Abstract: Optical alignment of an optical connector to input/output couplers of a photonic integrated circuit can be achieved by first actively aligning the optical connector successively to two loopback alignment features formed in the photonic chip of the PIC, optically unconnected to the PIC, and then moving the optical connector, based on precise knowledge of the positions of the loopback alignment features relative to the input/output couplers of the PIC, to a position aligned with the input/output couplers of the PIC and locking it in place.Type: GrantFiled: October 1, 2019Date of Patent: September 15, 2020Assignee: Juniper Networks, Inc.Inventors: Martin A. Spannagel, Brian Robert Koch, Jared Bauters
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Patent number: 10768388Abstract: An optical fiber shuffle for recombining a plurality of optical fibers of a first optical cable into a second optical cable includes a fixing rod, a first fixing plate, and a second fixing plate. The first fixing plate defines a plurality of first fixing grooves. The first fixing grooves are configured to respectively receive the plurality of optical fibers of the first optical cable. The second fixing plate defines a plurality of second fixing grooves. The second fixing groves are configured to respectively receive the plurality of optical fibers of the first optical cable after the plurality of optical fibers is wound around the fixing rod and recombined into the second optical cable. The first fixing plate and the second fixing plate are respectively located at two ends of the fixing rod.Type: GrantFiled: December 4, 2019Date of Patent: September 8, 2020Assignee: Fujin Precision Industrial (Jingcheng)Co., Ltd.Inventors: Jian-Wei Hu, Zhi-Ming Li, Yao Li