Patents by Inventor Vincent Wai HUNG
Vincent Wai HUNG has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11966081Abstract: An optical subassembly for non-reciprocal coupling of light from a planar optical waveguide output outside the optical subassembly to an optical fiber includes a carrier configured to support the optical subassembly, an optical fiber fixed to the optical subassembly, a focusing optical system consisting two foci with one focus coincident with the input of optical fiber, an optical isolator to transmit light unidirectionally between two foci, an input boundary provided by the carrier to align the optical subassembly with the planar optical waveguide output. In particular, the optical subassembly is operably configured to provide a low transmission loss for light traveling from the planar optical waveguide output to the optical fiber.Type: GrantFiled: July 14, 2020Date of Patent: April 23, 2024Assignee: Cloud Light Technology LimitedInventors: Wing Keung Mark Mak, Vincent Wai Hung
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Publication number: 20240045157Abstract: Structures and active alignment methods thereof of a Transmitter Optical Sub-Assembly (TOSA) Structure are provided, that includes a light source sub-assembly including a light source component assembled on a light source bench; an optical sub-assembly including an optical component assembled on an optical bench; and a silicon chip including a coupler. A light emitted by the light source component is received by the coupler via the optical component along an optical path, the light source bench and the optical bench are thermally conductive to dissipate heat. The light source sub-assembly and the optical sub-assembly are actively aligned at the same time to optimize optical coupling between the light source sub-assembly and the optical sub-assembly by optimizing positions and a distance of the light source sub-assembly and the optical sub-assembly, the positions and the distance are flexibly adjusted during the active alignment process.Type: ApplicationFiled: August 3, 2022Publication date: February 8, 2024Inventors: Yvonne Xiaoming Yu, Hau Chen Loke, Paladin Li Peng Cai, Wing Keung Mark Mak, Vincent Wai Hung
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Publication number: 20230236371Abstract: An optical transceiver sub-assembly (100) integrated with a silicon photonic platform having a folded optical path for transmitting and detecting a plurality of optical signals includes a housing chamber (105) and a top cover (110) to enclose elements of the optical transceiver sub-assembly (100) other than the housing chamber (105) and the top cover (110), a bottom housing module (115) accommodating an optical micro integration (130). In particular, the optical transceiver sub-assembly (100) is operably configured to establish an optical-electrical communication with an outside surrounding.Type: ApplicationFiled: September 26, 2022Publication date: July 27, 2023Inventors: Wing Keung Mark Mak, Vincent Wai Hung, Hulmut Ying Wai Sun, Vivian Wei Ma, Yvonne Xiaoming Yu, Jason Hok Hay Tang, Kwong Shing Tsang, Hermit Ka Kit Wong
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Patent number: 11353667Abstract: A transmitter optical sub-assembly (TOSA) structure having an independent upward heat dissipation path for dissipating heat in an upward direction including an independent signal source, an LDU assembly including a laser diode emitting a plurality of optical signals, a cascade LDU holding the laser diode, a lens positioned in front of the laser diode on the cascade LDU and an optical bench assembly including an optical bench assembled on a photonic integrated circuit having a plurality of passive optical components assembled on the optical bench. In particular, the independent signal source, the laser diode and the cascade LDU, are independent from the plurality of passive optical components on the photonic integrated circuit.Type: GrantFiled: May 21, 2020Date of Patent: June 7, 2022Assignee: Cloud Light Technology LimitedInventors: Vincent Wai Hung, Wing Keung Mark Mak, Vivian Wei Ma
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Patent number: 11287577Abstract: An optical mode converter for coupling between photonic integrated circuit (PIC) and optical fiber of different mode sizes is illustrated. The optical mode converter includes a waveguide assembly including a Single waveguide structure, a Multi-layer waveguide structure, and a Transitional waveguide structure. The Single waveguide structure includes a single waveguide. The dimension and propagation constant of a first end, of the single waveguide, is similar to a waveguide of a photonic integrated circuit (PIC). Furthermore, the Multi-layer waveguide structure included a multi-layer waveguide. Further, the Transitional waveguide structure is formed at a transitional structure. The Transitional waveguide structure allows transition of an optical mode between the Single waveguide structure and Multi-layer waveguide structure.Type: GrantFiled: June 20, 2019Date of Patent: March 29, 2022Assignee: Cloud Light Technology LimitedInventors: Chi Yan Wong, Vivian Wei Ma, Yat Hin Chan, Yuk Nga Chen, Vincent Wai Hung
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Publication number: 20220019027Abstract: An optical subassembly for non-reciprocal coupling of light from a planar optical waveguide output to an optical fiber includes a carrier configured to support the optical subassembly, an optical fiber fixed to the optical subassembly, a focusing optical system consisting two foci with one focus coincident with the input of optical fiber, an optical isolator to transmit light unidirectionally between two foci, an input boundary provided by the carrier to align the optical subassembly with the planar optical waveguide output. In particular, the optical subassembly is operably configured to provide a low transmission loss for light traveling from the planar optical waveguide output to the optical fiber.Type: ApplicationFiled: July 14, 2020Publication date: January 20, 2022Inventors: Wing Keung Mark Mak, Vincent Wai Hung
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Publication number: 20210364712Abstract: A transmitter optical sub-assembly (TOSA) structure having an independent upward heat dissipation path for dissipating heat in an upward direction including an independent signal source, an LDU assembly including a laser diode emitting a plurality of optical signals, a cascade LDU holding the laser diode, a lens positioned in front of the laser diode on the cascade LDU and an optical bench assembly including an optical bench assembled on a photonic integrated circuit having a plurality of passive optical components assembled on the optical bench. In particular, the independent signal source, the laser diode and the cascade LDU, are independent from the plurality of passive optical components on the photonic integrated circuit.Type: ApplicationFiled: May 21, 2020Publication date: November 25, 2021Inventors: Vincent Wai Hung, Wing Keung Mark Mak, Vivian Wei Ma
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Patent number: 10809469Abstract: A method and a system for active alignment of a light source assembly along three dimensions in an optical bench plane are provided. The light source assembly, preferably a laser diode on its sub-mount, is actively aligned in three dimensions, longitudinal, transection and vertical along the optical bench. The light source assembly is attached on edge of the optical bench, via adhesion processes, such as solder welding. Optical components such as collimator lens, isolator, etc are first passively aligned on the optical bench using alignment marks and epoxy slots provided on the surface of the optical bench. Then, laser diode, mounted on a laser diode sub-mount, is aligned in X and Z direction. Thereafter, the light source assembly is pushed towards the edge of the optical bench and attached with the edge via a solder joint. Also, a compensator can be actively aligned until the optimum light intensity achieved.Type: GrantFiled: April 2, 2019Date of Patent: October 20, 2020Assignee: Cloud Light Technology LimitedInventors: Vincent Wai Hung, Vivian Wei Ma, Wing Keung Mark Mak, Chih Hsun Lin
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Publication number: 20200319415Abstract: A method and a system for active alignment of a light source assembly along three dimensions in an optical bench plane are provided. The light source assembly, preferably a laser diode on its sub-mount, is actively aligned in three dimensions, longitudinal, transection and vertical along the optical bench. The light source assembly is attached on edge of the optical bench, via adhesion processes, such as solder welding. Optical components such as collimator lens, isolator, etc are first passively aligned on the optical bench using alignment marks and epoxy slots provided on the surface of the optical bench. Then, laser diode, mounted on a laser diode sub-mount, is aligned in X and Z direction. Thereafter, the light source assembly is pushed towards the edge of the optical bench and attached with the edge via a solder joint. Also, a compensator can be actively aligned until the optimum light intensity achieved.Type: ApplicationFiled: April 2, 2019Publication date: October 8, 2020Inventors: Vincent Wai Hung, Vivian Wei Ma, Wing Keung Mark Mak, Chih Hsun Lin
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Patent number: 10617034Abstract: The present disclosure relates to an enclosed electronic module with single/multiple active components and an integrated heat dissipation system, including a top housing formed with one or more openings, a heat sink mounted on an outer surface of the top housing over the opening(s) thereof, a bottom housing coupled with the top housing, one or more active components mounted on a PCB between the top and bottom housings, and at least one thermal block or vapor chamber thermally connected between the heat sink and the active component(s), thereby forming one or more thermal dissipation paths extending from the active component(s), through the at least one thermal block or vapor chamber, and to the heat sink.Type: GrantFiled: December 12, 2017Date of Patent: April 7, 2020Assignee: CLOUD LIGHT TECHNOLOGY LIMITEDInventors: Gad Joseph Hubahib Gaviola, Vincent Wai Hung, Margarito P. Banal, Jr., Vivian Wei Ma
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Publication number: 20190391336Abstract: An optical mode converter for coupling between photonic integrated circuit (PIC) and optical fiber of different mode sizes is illustrated. The optical mode converter includes a waveguide assembly including a Single waveguide structure, a Multi-layer waveguide structure, and a Transitional waveguide structure. The Single waveguide structure includes a single waveguide. The dimension and propagation constant of a first end, of the single waveguide, is similar to a waveguide of a photonic integrated circuit (PIC). Furthermore, the Multi-layer waveguide structure included a multi-layer waveguide. Further, the Transitional waveguide structure is formed at a transitional structure. The Transitional waveguide structure allows transition of an optical mode between the Single waveguide structure and Multi-layer waveguide structure.Type: ApplicationFiled: June 20, 2019Publication date: December 26, 2019Inventors: Chi Yan Wong, Vivian Wei Ma, Yat Hin Chan, Yuk Nga Chen, Vincent Wai Hung
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Publication number: 20190182985Abstract: The present disclosure relates to an enclosed electronic module with single/multiple active components and an integrated heat dissipation system, including a top housing formed with one or more openings, a heat sink mounted on an outer surface of the top housing over the opening(s) thereof, a bottom housing coupled with the top housing, one or more active components mounted on a PCB between the top and bottom housings, and at least one thermal block or vapor chamber thermally connected between the heat sink and the active component(s), thereby forming one or more thermal dissipation paths extending from the active component(s), through the at least one thermal block or vapor chamber, and to the heat sink.Type: ApplicationFiled: December 12, 2017Publication date: June 13, 2019Inventors: Gad Joseph Hubahib Gaviola, Vincent Wai Hung, Margarito P. Banal, JR., Vivian Wei Ma
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Patent number: 10209452Abstract: A silicon photonics package includes an L-shaped block formed from a cuboid having a through-hole through front and rear faces thereof. The L-shaped block includes two horizontal inner surfaces lying in a plane longitudinally bisecting a section of the through-hole, a bisected through-hole formed between the two horizontal inner surfaces, and a vertical inner surface. A lens block with a lens or lens array is bonded on the rear face of the L-shaped block. A vertical metal pad is attached on the front face of the L-shaped block. The vertical metal pad is soldered together with two horizontal metal pads on a photonic integrated circuit block formed with a waveguide or waveguide array such that the center of the optical lens is optically aligned with the waveguide. A method for fabricating the silicon photonics package, and an active alignment method for light coupling are also disclosed.Type: GrantFiled: March 12, 2018Date of Patent: February 19, 2019Assignee: CLOUD LIGHT TECHNOLOGY LIMITEDInventors: Vincent Wai Hung, Vivian Wei Ma
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Patent number: 9851517Abstract: A micro optical engine assembly including a printed circuit board, a frame mounted on the printed circuit board, a micro optical engine mounted on the printed circuit board within a central space of the frame, a jumper having a lens-carrying end placed on top of the micro optical engine and aligned therewith by alignment members to thereby limit horizontal movement of the jumper, and a latch having a snap mechanism releasably snapped onto the frame, and at least one spring plate resiliently pressing against an upper surface of the jumper when the latch is snapped onto the frame to thereby limit vertical movement of the jumper.Type: GrantFiled: February 22, 2017Date of Patent: December 26, 2017Assignee: SAE Magnetics (H.K.) Ltd.Inventors: Vivian Wei Ma, Vincent Wai Hung, Margarito P. Banal, Jr., Gad Joseph Hubahib Gaviola
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Patent number: 9778786Abstract: An optical finger navigation module includes a light source mounted below a window plate formed on a housing of the module, a driver for outputting a current to the light source, an environmental sensor for sensing an environmental condition and providing a signal, and a sensor integrated circuit including a processor coupled with the environmental sensor for reading the signal and generating a compensated current that corresponds to the signal based on a compensation curve tailor-made for the light source and derived from a compensation algorithm using compensation factors. A method for increasing lifetime of the module is also disclosed.Type: GrantFiled: March 21, 2016Date of Patent: October 3, 2017Assignee: SAE Magnetics (H.K.) Ltd.Inventors: Ka Lap Tong, Vincent Wai Hung
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Publication number: 20170269760Abstract: An optical finger navigation module includes a light source mounted below a window plate formed on a housing of the module, a driver for outputting a current to the light source, an environmental sensor for sensing an environmental condition and providing a signal, and a sensor integrated circuit including a processor coupled with the environmental sensor for reading the signal and generating a compensated current that corresponds to the signal based on a compensation curve tailor-made for the light source and derived from a compensation algorithm using compensation factors. A method for increasing lifetime of the module is also disclosed.Type: ApplicationFiled: March 21, 2016Publication date: September 21, 2017Inventors: Ka Lap Tong, Vincent Wai Hung
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Patent number: 9733438Abstract: An optical connector includes a lens block mounted in a MPO housing and optically coupled between an optical light guide and an external coupling light guide. A first lens formed on a first surface of the lens block to totally reflect and collimate light emitting from the optical light guide to a second surface. The second surface is coated with a partial transmission coating on a transmitter side and a total reflective coating on a receiver side. A second lens formed on a third or fourth surface on the lens block for focusing light from the second surface onto the external coupling light guide.Type: GrantFiled: November 5, 2015Date of Patent: August 15, 2017Assignee: SAE Magnetics (H.K.) Ltd.Inventors: Xiaoming Yu, Vincent Wai Hung, Margarito P. Banal, Jr., Yuk Nga Chen
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Patent number: 9679784Abstract: A wafer-level packaged optical subassembly includes: a substrate element, the substrate element including a top layer and a base layer being bonded with the top layer; a top window cover being bonded with the top layer of the substrate element; and a plurality of active optoelectronic elements disposed within the substrate element. At least one primary cavity is defined in the substrate element by the top layer and the base layer, and configured for accommodating the active optoelectronic elements. A plurality of peripheral cavities are defined around the at least one primary cavity as alignment features for external opto-mechanical parts.Type: GrantFiled: May 4, 2015Date of Patent: June 13, 2017Assignee: SAE Magnetics (H.K.) Ltd.Inventors: Dennis Tak Kit Tong, Vincent Wai Hung
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Patent number: 9671576Abstract: A CWDM transceiver module includes: a substrate; a plurality of light sources disposed on the substrate; a spacer layer disposed above the substrate, a cavity being defined in the space layer to accommodate the light sources; a cap layer transparent to light emitted from the light sources and disposed on the spacer layer, a notch for assembling a waveguide being formed in the cap layer; a plurality of lenses disposed on the cap layer facing the light sources; reflector coating and filter coating disposed on surfaces of the cap layer; an active alignment element disposed on the cap layer; and a reflector disposed at bottom of the notch.Type: GrantFiled: April 8, 2016Date of Patent: June 6, 2017Assignee: SAE MAGNETICS (H.K.) LTD.Inventors: Dennis Tak Kit Tong, Vivian Wei Ma, Vincent Wai Hung
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Publication number: 20170131488Abstract: An optical connector includes a lens block mounted in a MPO housing and optically coupled between an optical light guide and an external coupling light guide. A first lens formed on a first surface of the lens block to totally reflect and collimate light emitting from the optical light guide to a second surface. The second surface is coated with a partial transmission coating on a transmitter side and a total reflective coating on a receiver side. A second lens formed on a third or fourth surface on the lens block for focusing light from the second surface onto the external coupling light guide.Type: ApplicationFiled: November 5, 2015Publication date: May 11, 2017Inventors: Xiaoming Yu, Vincent Wai Hung, Margarito P. Banal, JR., Yuk Nga Chen