Patents by Inventor Rand D. Dannenberg
Rand D. Dannenberg 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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Publication number: 20220026649Abstract: To couple light between an optical fiber and a grating coupler of a photonic integrated circuits, a mirror is provided to turn light to/from the optical fiber to allow the axis of the optical fiber to be oriented at small angles or parallel to the surface of the PIC, and lowered close to the surface of the PIC. The mirror is further configured to reshape light from a flat polished optical fiber to produce a mode field resembling the mode field of an angled polished optical fiber, to match the design angle of existing grating couplers that are designed to work with angled polished optical fibers. The mirror and optical fiber alignment structure in the optical connector are integrally/simultaneous formed by precision stamping.Type: ApplicationFiled: March 16, 2021Publication date: January 27, 2022Inventors: Robert Ryan VALLANCE, Shuhe LI, Rand D. DANNENBERG, Michael K. BARNOSKI
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Patent number: 10712503Abstract: An expanded beam ferrule includes a first ferrule halve having first reflective surfaces and a second ferrule halve having second reflective surfaces, which together retain optical fibers. The pair of reflective surfaces output collimated light parallel to the mid-plane of the ferrule. An external sleeve aligns the external surface of two similar ferrules, with corresponding second reflective surfaces of the ferrules facing each other. Output light from an optical fiber held in one ferrule is bent twice by the pair of reflective surfaces, with beam divergence after the first bent, and collimation after the second bent. The collimated light is transmitted to the facing second reflective surface in a facing second ferrule aligned by the sleeve, which is subject to optical reshaping in reverse to that undertaken in the first ferrule, so as to converge and focus light to input to the optical fiber held in the other ferrule.Type: GrantFiled: March 25, 2019Date of Patent: July 14, 2020Assignee: CUDOQUANTA FLORIDA, INC.Inventors: Shuhe Li, Robert Ryan Vallance, Rand D. Dannenberg, Matthew Gean, Gregory L. Klotz
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Publication number: 20200116960Abstract: To couple light between an optical fiber and a grating coupler of a photonic integrated circuits, a mirror is provided to turn light to/from the optical fiber to allow the axis of the optical fiber to be oriented at small angles or parallel to the surface of the PIC, and lowered close to the surface of the PIC. The mirror is further configured to reshape light from a flat polished optical fiber to produce a mode field resembling the mode field of an angled polished optical fiber, to match the design angle of existing grating couplers that are designed to work with angled polished optical fibers. The mirror and optical fiber alignment structure in the optical connector are integrally/simultaneous formed by precision stamping.Type: ApplicationFiled: April 18, 2019Publication date: April 16, 2020Inventors: Robert Ryan VALLANCE, Shuhe LI, Rand D. DANNENBERG, Michael K. BARNOSKI
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Patent number: 10598873Abstract: Optical alignment of optical subassembly and optoelectronic device is achieved using an external source and an external receiver, passing optical signal through a passive waveguide in the optoelectronic device, via alignment reflective surface features provided on the optical subassembly. The optical subassembly is provided with a first alignment reflective surface directing alignment signal from the source to a grating coupler at the input of the waveguide, and a second alignment reflective surface directing to the receiver the alignment signal directed from a grating coupler at the output of the waveguide after the alignment signal has been transmitted from the input to the output through the waveguide.Type: GrantFiled: July 16, 2018Date of Patent: March 24, 2020Assignee: CUDOQUANTA FLORIDA, INC.Inventors: Robert Ryan Vallance, Gregory L. Klotz, Rand D. Dannenberg
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Patent number: 10520680Abstract: An expanded beam ferrule includes a first ferrule halve having reflective surfaces and a second ferrule halve, which together retain optical fibers. The reflective surfaces output light perpendicular to the mid-plane of the ferrule. A sleeve aligns the external surface of two similar ferrules, with the reflective surfaces of the respective ferrules facing each other. Output light from an optical fiber held in the first ferrule is bent and collimated by a reflective surface, transmitted to the facing reflective surface in a second ferrule aligned by the sleeve, which bends the light to input to the optical fiber held in the second ferrule. The ferrule components and/or sleeve are precision formed by high throughput metal stamping. The ferrule is incorporated in an optical fiber connector.Type: GrantFiled: August 17, 2017Date of Patent: December 31, 2019Assignee: NANOPRECISION PRODUCTS, INC.Inventors: Shuhe Li, Robert Ryan Vallance, Rand D. Dannenberg, Matthew Gean
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Patent number: 10413953Abstract: A composite structure includes a base and an auxiliary portion of dissimilar materials. The auxiliary portion is shaped by stamping. As the auxiliary portion is stamped, it interlocks with the base, and at the same time forming a desired structured feature on the auxiliary portion, such as a structured reflective surface, an alignment feature, etc. With this approach, relatively less critical structured features can be shaped on the bulk of the base with less effort to maintain a relatively larger tolerance, while the relatively more critical structured features on the auxiliary portion are more precisely shaped with further considerations to define dimensions, geometries and/or finishes at relatively smaller tolerances. The auxiliary portion may include a composite structure of two dissimilar materials associated with different properties for stamping different structured features.Type: GrantFiled: October 5, 2017Date of Patent: September 17, 2019Assignee: NANOPRECISION PRODUCTS, INC.Inventors: Shuhe Li, Robert Ryan Vallance, Michael K. Barnoski, Yongsheng Zhao, Matthew Gean, Tewodros Mengesha, Rand D. Dannenberg
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Publication number: 20190219771Abstract: An expanded beam ferrule includes a first ferrule halve having first reflective surfaces and a second ferrule halve having second reflective surfaces, which together retain optical fibers. The pair of reflective surfaces output collimated light parallel to the mid-plane of the ferrule. An external sleeve aligns the external surface of two similar ferrules, with corresponding second reflective surfaces of the ferrules facing each other. Output light from an optical fiber held in one ferrule is bent twice by the pair of reflective surfaces, with beam divergence after the first bent, and collimation after the second bent. The collimated light is transmitted to the facing second reflective surface in a facing second ferrule aligned by the sleeve, which is subject to optical reshaping in reverse to that undertaken in the first ferrule, so as to converge and focus light to input to the optical fiber held in the other ferrule.Type: ApplicationFiled: March 25, 2019Publication date: July 18, 2019Inventors: Shuhe LI, Robert Ryan VALLANCE, Rand D. DANNENBERG, Matthew GEAN, Gregory L. KLOTZ
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Publication number: 20190137705Abstract: Optical alignment of optical subassembly and optoelectronic device is achieved using an external source and an external receiver, passing optical signal through a passive waveguide in the optoelectronic device, via alignment reflective surface features provided on the optical subassembly. The optical subassembly is provided with a first alignment reflective surface directing alignment signal from the source to a grating coupler at the input of the waveguide, and a second alignment reflective surface directing to the receiver the alignment signal directed from a grating coupler at the output of the waveguide after the alignment signal has been transmitted from the input to the output through the waveguide.Type: ApplicationFiled: July 16, 2018Publication date: May 9, 2019Inventors: Robert Ryan VALLANCE, Gregory L. KLOTZ, Rand D. DANNENBERG
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Patent number: 10241275Abstract: An expanded beam ferrule includes a first ferrule halve having first reflective surfaces and a second ferrule halve having second reflective surfaces, which together retain optical fibers. The pair of reflective surfaces output collimated light parallel to the mid-plane of the ferrule. An external sleeve aligns the external surface of two similar ferrules, with corresponding second reflective surfaces of the ferrules facing each other. Output light from an optical fiber held in one ferrule is bent twice by the pair of reflective surfaces, with beam divergence after the first bent, and collimation after the second bent. The collimated light is transmitted to the facing second reflective surface in a facing second ferrule aligned by the sleeve, which is subject to optical reshaping in reverse to that undertaken in the first ferrule, so as to converge and focus light to input to the optical fiber held in the other ferrule.Type: GrantFiled: August 17, 2017Date of Patent: March 26, 2019Assignee: NANOPRECISION PRODUCTS, INC.Inventors: Shuhe Li, Robert Ryan Vallance, Rand D. Dannenberg, Matthew Gean, Gregory L. Klotz
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Publication number: 20180290195Abstract: A composite structure includes a base and an auxiliary portion of dissimilar materials. The auxiliary portion is shaped by stamping. As the auxiliary portion is stamped, it interlocks with the base, and at the same time forming a desired structured feature on the auxiliary portion, such as a structured reflective surface, an alignment feature, etc. With this approach, relatively less critical structured features can be shaped on the bulk of the base with less effort to maintain a relatively larger tolerance, while the relatively more critical structured features on the auxiliary portion are more precisely shaped with further considerations to define dimensions, geometries and/or finishes at relatively smaller tolerances. The auxiliary portion may include a composite structure of two dissimilar materials associated with different properties for stamping different structured features.Type: ApplicationFiled: October 5, 2017Publication date: October 11, 2018Inventors: Shuhe LI, Robert Ryan VALLANCE, Michael K. BARNOSKI, Yongsheng ZHAO, Matthew GEAN, Tewodros MENGESHA, Rand D. DANNENBERG
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Patent number: 10025043Abstract: Optical alignment of optical subassembly and optoelectronic device is achieved using an external source and an external receiver, passing optical signal through a passive waveguide in the optoelectronic device, via alignment reflective surface features provided on the optical subassembly. The optical subassembly is provided with a first alignment reflective surface directing alignment signal from the source to a grating coupler at the input of the waveguide, and a second alignment reflective surface directing to the receiver the alignment signal directed from a grating coupler at the output of the waveguide after the alignment signal has been transmitted from the input to the output through the waveguide.Type: GrantFiled: March 15, 2017Date of Patent: July 17, 2018Assignee: NANOPRECISION PRODUCTS, INC.Inventors: Robert Ryan Vallance, Gregory L. Klotz, Rand D. Dannenberg
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Publication number: 20180128992Abstract: An expanded beam ferrule includes a first ferrule halve having reflective surfaces and a second ferrule halve, which together retain optical fibers. The reflective surfaces output light perpendicular to the mid-plane of the ferrule. A sleeve aligns the external surface of two similar ferrules, with the reflective surfaces of the respective ferrules facing each other. Output light from an optical fiber held in the first ferrule is bent and collimated by a reflective surface, transmitted to the facing reflective surface in a second ferrule aligned by the sleeve, which bends the light to input to the optical fiber held in the second ferrule. The ferrule components and/or sleeve are precision formed by high throughput metal stamping. The ferrule is incorporated in an optical fiber connector.Type: ApplicationFiled: August 17, 2017Publication date: May 10, 2018Inventors: Shuhe LI, Robert Ryan VALLANCE, Rand D. DANNENBERG, Matthew GEAN
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Publication number: 20180081123Abstract: An expanded beam ferrule includes a first ferrule halve having first reflective surfaces and a second ferrule halve having second reflective surfaces, which together retain optical fibers. The pair of reflective surfaces output collimated light parallel to the mid-plane of the ferrule. An external sleeve aligns the external surface of two similar ferrules, with corresponding second reflective surfaces of the ferrules facing each other. Output light from an optical fiber held in one ferrule is bent twice by the pair of reflective surfaces, with beam divergence after the first bent, and collimation after the second bent. The collimated light is transmitted to the facing second reflective surface in a facing second ferrule aligned by the sleeve, which is subject to optical reshaping in reverse to that undertaken in the first ferrule, so as to converge and focus light to input to the optical fiber held in the other ferrule.Type: ApplicationFiled: August 17, 2017Publication date: March 22, 2018Inventors: Shuhe LI, Robert Ryan VALLANCE, Rand D. DANNENBERG, Matthew GEAN, Gregory L. KLOTZ
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Publication number: 20170299824Abstract: Optical alignment of optical subassembly and optoelectronic device is achieved using an external source and an external receiver, passing optical signal through a passive waveguide in the optoelectronic device, via alignment reflective surface features provided on the optical subassembly. The optical subassembly is provided with a first alignment reflective surface directing alignment signal from the source to a grating coupler at the input of the waveguide, and a second alignment reflective surface directing to the receiver the alignment signal directed from a grating coupler at the output of the waveguide after the alignment signal has been transmitted from the input to the output through the waveguide.Type: ApplicationFiled: March 15, 2017Publication date: October 19, 2017Inventors: Robert Ryan VALLANCE, Gregory L. KLOTZ, Rand D. DANNENBERG
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Patent number: 9782814Abstract: A composite structure includes a base and an auxiliary portion of dissimilar materials. The auxiliary portion is shaped by stamping. As the auxiliary portion is stamped, it interlocks with the base, and at the same time forming a desired structured feature on the auxiliary portion, such as a structured reflective surface, an alignment feature, etc. With this approach, relatively less critical structured features can be shaped on the bulk of the base with less effort to maintain a relatively larger tolerance, while the relatively more critical structured features on the auxiliary portion are more precisely shaped with further considerations to define dimensions, geometries and/or finishes at relatively smaller tolerances. The auxiliary portion may include a composite structure of two dissimilar materials associated with different properties for stamping different structured features.Type: GrantFiled: May 15, 2015Date of Patent: October 10, 2017Assignee: NANOPRECISION PRODUCTS, INC.Inventors: Shuhe Li, Robert Ryan Vallance, Michael K. Barnoski, Yongsheng Zhao, Matthew Gean, Tewodros Mengesha, Rand D. Dannenberg
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Publication number: 20160377821Abstract: To couple light between an optical fiber and a grating coupler of a photonic integrated circuits, a mirror is provided to turn light to/from the optical fiber to allow the axis of the optical fiber to be oriented at small angles or parallel to the surface of the PIC, and lowered close to the surface of the PIC. The mirror is further configured to reshape light from a flat polished optical fiber to produce a mode field resembling the mode field of an angled polished optical fiber, to match the design angle of existing grating couplers that are designed to work with angled polished optical fibers. The mirror and optical fiber alignment structure in the optical connector are integrally/simultaneous formed by precision stamping.Type: ApplicationFiled: May 15, 2015Publication date: December 29, 2016Inventors: Robert Ryan VALLANCE, Shuhe LI, Rand D. DANNENBERG, Michael K. BARNOSKI
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Publication number: 20160016218Abstract: A composite structure includes a base and an auxiliary portion of dissimilar materials. The auxiliary portion is shaped by stamping. As the auxiliary portion is stamped, it interlocks with the base, and at the same time forming a desired structured feature on the auxiliary portion, such as a structured reflective surface, an alignment feature, etc. With this approach, relatively less critical structured features can be shaped on the bulk of the base with less effort to maintain a relatively larger tolerance, while the relatively more critical structured features on the auxiliary portion are more precisely shaped with further considerations to define dimensions, geometries and/or finishes at relatively smaller tolerances. The auxiliary portion may include a composite structure of two dissimilar materials associated with different properties for stamping different structured features.Type: ApplicationFiled: May 15, 2015Publication date: January 21, 2016Inventors: Shuhe LI, Robert Ryan VALLANCE, Michael K. BARNOSKI, Yongsheng ZHAO, Matthew GEAN, Tewodros MENGESHA, Rand D. DANNENBERG
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Patent number: 7883776Abstract: An optical coating on a transparent substrate is provided with a temporary layer of carbon as protection during manufacturing against scratches and corrosive environments. When the optical coating and/or substrate are tempered in an atmosphere reactive to carbon, such as air, the layer of carbon is removed as a carbon-containing gas. For an optical coating with a brittle, glassy, outermost layer furthest from the substrate, additional protection is provided by a scratch propagation blocker layer between the outermost layer and the carbon protective layer.Type: GrantFiled: May 29, 2007Date of Patent: February 8, 2011Assignee: AGC Flat Glass North America, Inc.Inventors: Kyle W. Hukari, Peter A. Maschwitz, Rand D. Dannenberg
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Publication number: 20100266823Abstract: An optical coating on a transparent substrate is provided with a temporary layer of carbon as protection during manufacturing against scratches and corrosive environments. When the optical coating and/or substrate are tempered in an atmosphere reactive to carbon, such as air, the layer of carbon is removed as a carbon-containing gas. For an optical coating with a brittle, glassy, outermost layer furthest from the substrate, additional protection is provided by a scratch propagation blocker layer between the outermost layer and the carbon protective layer.Type: ApplicationFiled: May 29, 2007Publication date: October 21, 2010Applicant: AFG INDUSTRIES, INC.Inventors: Kyle W. HUKARI, Peter A. Maschwitz, Rand D. Dannenberg
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Patent number: 7719748Abstract: The disclosure relates to a method and apparatus for providing switching optical filter. The switching optical filter provides several functionalities at the same time. For example, the filter can be used to remove photons of undesirable wavelength, such as ultraviolet or infrared, while simultaneously switching from and between one mode to another in order to accommodate changing ambient light conditions. In one embodiment, the disclosure relates to a method for forming an optical filter, the method comprising: forming a first electrode layer on a substrate; forming an ion conductor layer to at least partially cover the first electrode layer; forming an optically transparent layer over the ion conductor layer, the optically transparent layer preventing transmission of photons having a first wavelength while transmitting photons of a second wavelength; and forming a second electrode layer to at least partially cover the optically transparent layer.Type: GrantFiled: May 20, 2008Date of Patent: May 18, 2010Assignee: Teledyne Scientific & Imaging LLCInventors: Randolph L. Hall, Rand D. Dannenberg