Patents by Inventor King-Fu Hii
King-Fu Hii 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: 11892691Abstract: A hermetic optical fiber alignment assembly includes a ferrule portion having a plurality of grooves receiving the end sections of optical fibers, wherein the grooves define the location and orientation of the end sections with respect to the ferrule portion. The assembly includes an integrated optical element for coupling the input/output of an optical fiber to the opto-electronic devices in the opto-electronic module. The optical element can be in the form of a structured reflective surface. The end of the optical fiber is at a defined distance to and aligned with the structured reflective surface. The structured reflective surfaces and the fiber alignment grooves can be formed by stamping.Type: GrantFiled: July 20, 2020Date of Patent: February 6, 2024Assignee: Senko Advanced Components, Inc.Inventors: Shuhe Li, Robert Ryan Vallance, Michael K. Barnoski, King-Fu Hii
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Publication number: 20230387650Abstract: An LBM package and method for packaging an LBM using a stamped metallic mirror array that folds light beams, correct beam shapes, fold and/or redirect beam propagations. The mirror array can be integrated or assembled inside an LBM to provide beam shaping and redirection of the high-power beams near the laser diode. The LBM incorporates a stamped metallic freeform mirror or reflector with an off-axis parabolic shape is configured to fold and collimate laser beam. A precision stamping process is deployed to produce an array of miniature, freeform mirrors in high volume applications. The mirror array simplifies the optical path and eliminates passive components such as refractive lenses and dichroic filters that combine RGB beams. Stamped metallic optical components with micro-scale freeform mirrors in the LBM are tolerant of high temperatures and can thermally diffuse heat away from the reflective surface for high power applications.Type: ApplicationFiled: April 17, 2023Publication date: November 30, 2023Inventors: Yang CHEN, Robert Ryan VALLANCE, King-Fu HII
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Publication number: 20210072471Abstract: A hermetic optical fiber alignment assembly includes a ferrule portion having a plurality of grooves receiving the end sections of optical fibers, wherein the grooves define the location and orientation of the end sections with respect to the ferrule portion. The assembly includes an integrated optical element for coupling the input/output of an optical fiber to the opto-electronic devices in the opto-electronic module. The optical element can be in the form of a structured reflective surface. The end of the optical fiber is at a defined distance to and aligned with the structured reflective surface. The structured reflective surfaces and the fiber alignment grooves can be formed by stamping.Type: ApplicationFiled: July 20, 2020Publication date: March 11, 2021Inventors: Shuhe LI, Robert Ryan VALLANCE, Michael K. BARNOSKI, King-Fu HII
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Patent number: 10754107Abstract: A process of making a coupling device for physically and optically coupling an optical fiber to route optical signals to/from optical receiver/transmitter. The coupling device includes a structured reflective surface that functions as an optical element that directs light to/from the input/output ends of the optical fiber by reflection, and an optical fiber retention groove structure that positively receives the optical fiber in a manner with the end of the optical fiber at a defined distance to and aligned with the structured reflective surface. The open structure of the structured reflective surface and fiber retention structure lends itself to mass production processes such as precision stamping. The coupling device can be attached to an optical transmitter and/or receiver, with the structured reflective surface aligned to the light source in the transmitter or to the detector in the receiver, and adapted in an active optical cable.Type: GrantFiled: June 24, 2019Date of Patent: August 25, 2020Assignee: CUDOQUANTA FLORIDA, INC.Inventors: Shuhe Li, Robert Ryan Vallance, King-Fu Hii, Michael K. Barnoski
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Patent number: 10739535Abstract: A process and tool for reshaping and resizing grooves that were pre-formed in a pair of ferrules halves of an optical fiber ferrule. The pre-formed grooves are further subject to a separate, subsequent reshaping and resizing step using the tool and a gauge that may be a bare section of optical fiber or a pin. The ferrule halves are aligned, and using the pre-formed grooves as guides for the gauge optical fiber or gauge pin, the ferrule halves are compressed together with the gauge optical fiber or gauge pin therebetween, thereby reshaping and resizing the respective grooves on the ferrule halves. After reshaping and resizing, the resultant groove that is finally formed on each ferrule halve would be precisely shaped, sized and located with respect to the external alignment surface of each ferrule halve. The ferrule halves may be used to terminate an optical fiber cable.Type: GrantFiled: September 6, 2017Date of Patent: August 11, 2020Assignee: CUDOQUANTA FLORIDA, INC.Inventors: Robert Ryan Vallance, King-Fu Hii, Yang Chen, Joseph Kim Bond, Po-Tsung Wu, Michael K. Barnoski, Matthew Gean
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Patent number: 10718914Abstract: A hermetic optical fiber alignment assembly includes a ferrule portion having a plurality of grooves receiving the end sections of optical fibers, wherein the grooves define the location and orientation of the end sections with respect to the ferrule portion. The assembly includes an integrated optical element for coupling the input/output of an optical fiber to the opto-electronic devices in the opto-electronic module. The optical element can be in the form of a structured reflective surface. The end of the optical fiber is at a defined distance to and aligned with the structured reflective surface. The structured reflective surfaces and the fiber alignment grooves can be formed by stamping.Type: GrantFiled: April 21, 2016Date of Patent: July 21, 2020Assignee: CUDOQUANTA FLORIDA, INC.Inventors: Shuhe Li, Robert Ryan Vallance, Michael K. Barnoski, King-Fu Hii
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COUPLING DEVICE HAVING A STRUCTURED REFLECTIVE SURFACE FOR COUPLING INPUT/OUTPUT OF AN OPTICAL FIBER
Publication number: 20200049907Abstract: A process of making a coupling device for physically and optically coupling an optical fiber to route optical signals to/from optical receiver/transmitter. The coupling device includes a structured reflective surface that functions as an optical element that directs light to/from the input/output ends of the optical fiber by reflection, and an optical fiber retention groove structure that positively receives the optical fiber in a manner with the end of the optical fiber at a defined distance to and aligned with the structured reflective surface. The open structure of the structured reflective surface and fiber retention structure lends itself to mass production processes such as precision stamping. The coupling device can be attached to an optical transmitter and/or receiver, with the structured reflective surface aligned to the light source in the transmitter or to the detector in the receiver, and adapted in an active optical cable.Type: ApplicationFiled: June 24, 2019Publication date: February 13, 2020Inventors: Shuhe LI, Robert Ryan VALLANCE, King-Fu HII, Michael K. BARNOSKI -
Publication number: 20180128991Abstract: A process and tool for reshaping and resizing grooves that were pre-formed in a pair of ferrules halves of an optical fiber ferrule. A high-precision alignment fixture produces a ferrule assembly with an optical fiber precisely held therein in alignment with the external alignment surface of the ferrule assembly. The fixture uses a double-compound flexure supporting a linearly moving body (e.g., a reshaping and resizing jaw), which eliminates parasitic displacement in a direction lateral to the direction of linear motion of the moving body. Each compound flexure includes a pair of double parallel leaf springs (in series).Type: ApplicationFiled: September 6, 2017Publication date: May 10, 2018Inventors: Robert Ryan VALLANCE, King-Fu HII, Seon KIM
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Publication number: 20180088289Abstract: A process and tool for reshaping and resizing grooves that were pre-formed in a pair of ferrules halves of an optical fiber ferrule. The pre-formed grooves are further subject to a separate, subsequent reshaping and resizing step using the tool and a gauge that may be a bare section of optical fiber or a pin. The ferrule halves are aligned, and using the pre-formed grooves as guides for the gauge optical fiber or gauge pin, the ferrule halves are compressed together with the gauge optical fiber or gauge pin therebetween, thereby reshaping and resizing the respective grooves on the ferrule halves. After reshaping and resizing, the resultant groove that is finally formed on each ferrule halve would be precisely shaped, sized and located with respect to the external alignment surface of each ferrule halve. The ferrule halves may be used to terminate an optical fiber cable.Type: ApplicationFiled: September 6, 2017Publication date: March 29, 2018Inventors: Robert Ryan VALLANCE, King-Fu HII, Yang CHEN, Joseph Kim BOND, Po-Tsung WU, Michael K. BARNOSKI, Matthew GEAN
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COUPLING DEVICE HAVING A STRUCTURED REFLECTIVE SURFACE FOR COUPLING INPUT/OUTPUT OF AN OPTICAL FIBER
Publication number: 20180081132Abstract: A coupling device for physically and optically coupling an input/output end of an optical fiber for routing optical signals, to and from optical receiver and/or transmitter. The coupling device includes a structured reflective surface that functions as an optical element that directs light to/from the input/output ends of the optical fiber by reflection, and an optical fiber retention groove structure that positively receives the optical fiber in a manner with the end of the optical fiber at a defined distance to and aligned with the structured reflective surface. The open structure of the structured reflective surface and fiber retention structure lends itself to mass production processes such as precision stamping. The coupling device can be attached to an optical transmitter and/or receiver, with the structured reflective surface aligned to the light source in the transmitter or to the detector in the receiver, and adapted in an active optical cable.Type: ApplicationFiled: August 3, 2017Publication date: March 22, 2018Inventors: Shuhe LI, Robert Ryan VALLANCE, King-Fu HII, Michael K. BARNOSKI -
Publication number: 20160238804Abstract: A hermetic optical fiber alignment assembly includes a ferrule portion having a plurality of grooves receiving the end sections of optical fibers, wherein the grooves define the location and orientation of the end sections with respect to the ferrule portion. The assembly includes an integrated optical element for coupling the input/output of an optical fiber to the opto-electronic devices in the opto-electronic module. The optical element can be in the form of a structured reflective surface. The end of the optical fiber is at a defined distance to and aligned with the structured reflective surface. The structured reflective surfaces and the fiber alignment grooves can be formed by stamping.Type: ApplicationFiled: April 21, 2016Publication date: August 18, 2016Inventors: Shuhe LI, Robert Ryan VALLANCE, Michael K. BARNOSKI, King-Fu HII
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COUPLING DEVICE HAVING A STRUCTURED REFLECTIVE SURFACE FOR COUPLING INPUT/OUTPUT OF AN OPTICAL FIBER
Publication number: 20160238803Abstract: A coupling device for physically and optically coupling an input/output end of an optical fiber for routing optical signals, to and from optical receiver and/or transmitter. The coupling device includes a structured reflective surface that functions as an optical element that directs light to/from the input/output ends of the optical fiber by reflection, and an optical fiber retention groove structure that positively receives the optical fiber in a manner with the end of the optical fiber at a defined distance to and aligned with the structured reflective surface. The open structure of the structured reflective surface and fiber retention structure lends itself to mass production processes such as precision stamping. The coupling device can be attached to an optical transmitter and/or receiver, with the structured reflective surface aligned to the light source in the transmitter or to the detector in the receiver, and adapted in an active optical cable.Type: ApplicationFiled: April 21, 2016Publication date: August 18, 2016Inventors: Shuhe LI, Robert Ryan VALLANCE, King-Fu HII, Michael K. BARNOSKI -
Patent number: 9091833Abstract: A cable retention structure defining a castellated fiber cable clamping surface. The castellated surface has a series of alternating small and large cavities distributed along the axial direction. The small cavities are sized such that when the castellated surface is pressed against the buffer jacket exterior of the fiber cable, the small cavities will be able to clamp the fiber cable jacket within its full dimensional tolerance range. The large cavities are sized to provide sufficient clearance to accommodate the relatively soft material of the cable jacket which cannot be accommodated by the small cavities. The cable jacket is securely held by the retention structure to prevent slipping. Accordingly, fiber cables having buffer jackets with large dimensional variations can still be securely retained by the castellated retention structure in accordance with the present invention.Type: GrantFiled: November 2, 2012Date of Patent: July 28, 2015Assignee: NANOPRECISION PRODUCTS, INC.Inventors: Yang Chen, King-Fu Hii, Tewodros Mengesha, Fred Bosch, Chris Morgan, Robert Ryan Vallance
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Patent number: 8740029Abstract: Axial tension is applied to an optical fiber that had been scored at the intended cleave location, wherein the axial tension is applied in a time-varying manner to maintain the stress intensity factor for crack on the fiber within an acceptable level to produce a stable crack growth at a reasonable rate to cleave the fiber without requiring polishing of the end surface. Careful control of the applied tension force with time acts to control the velocity of the propagating crack by maintaining substantially constant stress intensity factor. The applied axial tension force is reduced with time and/or crack growth (as crack propagates). As a result, the strain energy in the fiber material is released by formation of a single plane with an optical quality surface without requiring polishing. A substantially flat optical surface of enhanced optical quality is formed at the cleaved end of the optical fiber.Type: GrantFiled: June 28, 2011Date of Patent: June 3, 2014Assignee: Nanoprecision Products, Inc.Inventors: Michael K. Barnoski, Suresh T. Gulati, King-Fu Hii, Donald Keck, William R. Powell, R. Ryan Vallance
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Publication number: 20120000956Abstract: Axial tension is applied to an optical fiber that had been scored at the intended cleave location, wherein the axial tension is applied in a time-varying manner to maintain the stress intensity factor for crack on the fiber within an acceptable level to produce a stable crack growth at a reasonable rate to cleave the fiber without requiring polishing of the end surface. Careful control of the applied tension force with time acts to control the velocity of the propagating crack by maintaining substantially constant stress intensity factor. The applied axial tension force is reduced with time and/or crack growth (as crack propagates). As a result, the strain energy in the fiber material is released by formation of a single plane with an optical quality surface without requiring polishing. A substantially flat optical surface of enhanced optical quality is formed at the cleaved end of the optical fiber.Type: ApplicationFiled: June 28, 2011Publication date: January 5, 2012Inventors: Michael K. Barnoski, Suresh T. Gulati, King-Fu Hii, Donald Keck, William R. Powell, R. Ryan Vallance