Patents by Inventor Tom Collins
Tom Collins 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: 20210244043Abstract: Edible coatings comprising scalenohedral calcium carbonate particles are provided. The scalenohedral calcium carbonate particles can act as a white pigment to impart white color properties to the edible coatings, or to opacify edible coatings to act as a substrate to subsequent layers containing colors.Type: ApplicationFiled: June 13, 2019Publication date: August 12, 2021Inventors: Brent ANDERSON, Tom COLLINS, Kevin KRONEBERGER-STANTON, Delicia POWELL
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Patent number: 10809473Abstract: A photonic integrated circuit comprises a substrate and a passive layer, which is formed on the substrate and incorporates a passive photonic device. The circuit also comprises a layer of III-V material. The layer of III-V material is arranged in a recess of the passive layer and incorporates an active photonic device. The layer of III-V material is configured such that light can be transferred between the passive photonic device and the active photonic device. This photonic integrated circuit provides the advantages of an active device formed from III-V material in an arrangement that is easily planarized, which enables close integration between the active device and electronic components.Type: GrantFiled: December 15, 2017Date of Patent: October 20, 2020Assignee: Huawei Technologies Co., Ltd.Inventor: Tom Collins
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Patent number: 10459166Abstract: A waveguide structure for optical coupling is provided. The waveguide structure includes a first waveguide embedded in a cladding of a lower refractive index than the first waveguide, a second waveguide of a higher refractive index than the cladding, and an intermediate waveguide. The first waveguide and the second waveguide are physically arranged at the same side of the intermediate waveguide to establish an optical coupling between the first waveguide and the second waveguide through the intermediate waveguide. The first waveguide material has a refractive index value smaller than or equal to 3.Type: GrantFiled: April 4, 2018Date of Patent: October 29, 2019Assignee: CALIOPA N.V.Inventor: Tom Collins
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Patent number: 10215919Abstract: An optical coupling arrangement is provided, comprising a lightwave circuit (LC), a coupling element and an optical waveguide element, wherein the lightwave circuit has a first surface area and wherein the coupling element is attached to the first surface area) such that an optical signal can be transmitted from the lightwave circuit to the coupling element. The optical waveguide element is attached to the coupling element at a first junction zone such that the optical signal can be transmitted from the coupling element to the optical waveguide element). The coupling element is configured to perform mode transformation to the optical signal transmitted from the lightwave circuit to the optical waveguide element and such that adiabatic coupling of the optical signal to the optical waveguide element is enabled. Thus, a better coupling efficiency can be achieved.Type: GrantFiled: August 17, 2017Date of Patent: February 26, 2019Assignee: Huawei Technologies Co., Ltd.Inventors: Tom Collins, Marco Lamponi
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Publication number: 20180231714Abstract: A waveguide structure for optical coupling is provided. The waveguide structure includes a first waveguide embedded in a cladding of a lower refractive index than the first waveguide, a second waveguide of a higher refractive index than the cladding, and an intermediate waveguide. The first waveguide and the second waveguide are physically arranged at the same side of the intermediate waveguide to establish an optical coupling between the first waveguide and the second waveguide through the intermediate waveguide. The first waveguide material has a refractive index value smaller than or equal to 3.Type: ApplicationFiled: April 4, 2018Publication date: August 16, 2018Inventor: Tom COLLINS
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Publication number: 20180172935Abstract: A photonic integrated circuit comprises a substrate and a passive layer, which is formed on the substrate and incorporates a passive photonic device. The circuit also comprises a layer of III-V material. The layer of III-V material is arranged in a recess of the passive layer and incorporates an active photonic device. The layer of III-V material is configured such that light can be transferred between the passive photonic device and the active photonic device. This photonic integrated circuit provides the advantages of an active device formed from III-V material in an arrangement that is easily planarized, which enables close integration between the active device and electronic components.Type: ApplicationFiled: December 15, 2017Publication date: June 21, 2018Inventor: Tom COLLINS
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Publication number: 20170343734Abstract: An optical coupling arrangement is provided, comprising a lightwave circuit (LC), a coupling element and an optical waveguide element, wherein the lightwave circuit has a first surface area and wherein the coupling element is attached to the first surface area) such that an optical signal can be transmitted from the lightwave circuit to the coupling element. The optical waveguide element is attached to the coupling element at a first junction zone such that the optical signal can be transmitted from the coupling element to the optical waveguide element). The coupling element is configured to perform mode transformation to the optical signal transmitted from the lightwave circuit to the optical waveguide element and such that adiabatic coupling of the optical signal to the optical waveguide element is enabled. Thus, a better coupling efficiency can be achieved.Type: ApplicationFiled: August 17, 2017Publication date: November 30, 2017Inventors: Tom COLLINS, Marco LAMPONI
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Patent number: 9799791Abstract: A process for manufacturing a photonic circuit comprises: manufacturing on a first wafer a first layer stack comprising an underclad oxide layer and a high refractive index waveguide layer; patterning the high refractive index waveguide layer to generate a passive photonic structures; planarizing the first layer stack with a planarizing oxide layer having a thickness below 300 nanometers above the high refractive index waveguide layer; annealing the patterned high refractive index waveguide layer before and/or after the planarizing oxide layer; manufacturing on a second wafer a second layer stack comprising a detachable mono-crystalline silicon waveguide layer; transferring and bonding the first layer stack and the second layer stack; manufacturing active photonic devices in the mono-crystalline silicon waveguide layer; and realizing evanescent coupling between the mono-crystalline silicon waveguide layer and the high refractive index waveguide layer.Type: GrantFiled: January 13, 2015Date of Patent: October 24, 2017Assignee: Huawei Technologies Co., Ltd.Inventor: Tom Collins
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Patent number: 9746607Abstract: The present invention provides a waveguide structure for optical coupling. The waveguide structure includes a first waveguide embedded in a cladding of lower refractive index than the first waveguide, and a second waveguide of higher refractive index than the cladding and distanced from the first waveguide. The waveguide structure further includes an intermediate waveguide, of which at least a part is arranged between the first waveguide and the second waveguide. The first waveguide and the second waveguide each comprise a tapered end for coupling light into and/or out of the intermediate waveguide.Type: GrantFiled: May 5, 2016Date of Patent: August 29, 2017Assignee: Huawei Technologies Co., Ltd.Inventors: Tom Collins, Marco Lamponi
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Publication number: 20170075063Abstract: A polarization dependent mode converter is provided on a semiconductor basis, having a waveguide made of a waveguide material comprising SiNx, or another solid waveguide material having a refractive index between 1.7 to 2.3, embedded in a cladding material comprising SiO2 or another solid cladding material having a refractive index between 1 and 1.6, wherein the waveguide includes in a portion along its lengthwise extension a first section having a vertical asymmetric configuration, the asymmetric configuration includes a thin layer of silicon above the waveguide material, the thickness of the thin Si-layer in vertical direction is less than the thickness of the waveguide material in the same vertical direction.Type: ApplicationFiled: September 23, 2016Publication date: March 16, 2017Inventors: Joost Brouckaert, Tom Collins
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Patent number: 9568676Abstract: A method for producing an integrated optical circuit comprising an active device and a passive waveguide circuit includes: applying an active waveguide structure on a source wafer substrate; exposing a portion of the source wafer substrate by selectively removing the active waveguide structure; applying a passive waveguide structure on the exposed portion of the source wafer substrate, wherein an aggregation of the active waveguide structure and the passive waveguide structure forms the active device, the active device having a bottom surface facing the source wafer substrate; removing the source wafer substrate from the active device; and attaching the active device to a target substrate comprising the passive waveguide circuit such that the bottom surface of the active device faces the target substrate.Type: GrantFiled: August 12, 2015Date of Patent: February 14, 2017Assignee: Caliopa NVInventors: Tom Collins, Martijn Tassaert
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Patent number: 9507111Abstract: An optical interposer comprising an array of first order diffraction grating couplers arranged to couple light emitted by an array of single mode Vertical-Cavity Surface-Emitting Lasers (VCSELs) into optical waveguides, the light being emitted in a direction substantially perpendicular to the optical waveguides; a device for refracting the light over at least 4 degrees; an array of output ports arranged to optically couple light from the optical waveguides into an array of optical fibers or other optical elements; and the optical waveguides connecting the array of first order diffraction grating couplers and the array of output ports to route the light from the diffraction gratings into the output ports.Type: GrantFiled: March 30, 2015Date of Patent: November 29, 2016Assignee: Huawei Technologies Co., Ltd.Inventors: Tom Collins, Sebastien Lardenois
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Publication number: 20160327742Abstract: The present invention provides a waveguide structure for optical coupling. The waveguide structure includes a first waveguide embedded in a cladding of lower refractive index than the first waveguide, and a second waveguide of higher refractive index than the cladding and distanced from the first waveguide. The waveguide structure further includes an intermediate waveguide, of which at least a part is arranged between the first waveguide and the second waveguide. The first waveguide and the second waveguide each comprise a tapered end for coupling light into and/or out of the intermediate waveguide.Type: ApplicationFiled: May 5, 2016Publication date: November 10, 2016Inventors: Tom Collins, Marco Lamponi
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Publication number: 20160261092Abstract: The invention relates to a temperature insensitive semiconductor laser, comprising: a gain region for generating laser radiation; a reflector region for reflecting the laser radiation generated in the gain region, and a waveguide for guiding the laser radiation generated in the gain region to the reflector region and for guiding the laser radiation reflected in the reflector region to the gain region, wherein the gain region, the reflector region and the waveguide define a resonating cavity of the semiconductor laser and wherein the waveguide is substantially athermal.Type: ApplicationFiled: March 4, 2016Publication date: September 8, 2016Inventors: Martijn Tassaert, Marco Lamponi, Tom Collins
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Publication number: 20160047983Abstract: A method for producing an integrated optical circuit comprising an active device and a passive waveguide circuit includes: applying an active waveguide structure on a source wafer substrate; exposing a portion of the source wafer substrate by selectively removing the active waveguide structure; applying a passive waveguide structure on the exposed portion of the source wafer substrate, wherein an aggregation of the active waveguide structure and the passive waveguide structure forms the active device, the active device having a bottom surface facing the source wafer substrate; removing the source wafer substrate from the active device; and attaching the active device to a target substrate comprising the passive waveguide circuit such that the bottom surface of the active device faces the target substrate.Type: ApplicationFiled: August 12, 2015Publication date: February 18, 2016Inventors: Tom COLLINS, Martijn TASSAERT
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Publication number: 20150205062Abstract: An optical interposer comprising an array of first order diffraction grating couplers arranged to couple light emitted by an array of single mode Vertical-Cavity Surface-Emitting Lasers (VCSELs) into optical waveguides, the light being emitted in a direction substantially perpendicular to the optical waveguides; a device for refracting the light over at least 4 degrees; an array of output ports arranged to optically couple light from the optical waveguides into an array of optical fibers or other optical elements; and the optical waveguides connecting the array of first order diffraction grating couplers and the array of output ports to route the light from the diffraction gratings into the output ports.Type: ApplicationFiled: March 30, 2015Publication date: July 23, 2015Inventors: Tom Collins, Sebastien Lardenois
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Publication number: 20150140720Abstract: A process for manufacturing a photonic circuit comprises: manufacturing on a first wafer a first layer stack comprising an underclad oxide layer and a high refractive index waveguide layer; patterning the high refractive index waveguide layer to generate a passive photonic structures; planarizing the first layer stack with a planarizing oxide layer having a thickness below 300 nanometers above the high refractive index waveguide layer; annealing the patterned high refractive index waveguide layer before and/or after the planarizing oxide layer; manufacturing on a second wafer a second layer stack comprising a detachable mono-crystalline silicon waveguide layer; transferring and bonding the first layer stack and the second layer stack; manufacturing active photonic devices in the mono-crystalline silicon waveguide layer; and realizing evanescent coupling between the mono-crystalline silicon waveguide layer and the high refractive index waveguide layer.Type: ApplicationFiled: January 13, 2015Publication date: May 21, 2015Inventor: Tom Collins
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Patent number: 8684614Abstract: A detergent dispensing cap for pre-treating a stained fabric. The cap can have a pour volume sized and dimensioned to provide for a unit dose of the detergent composition. A portion of the cap can be provided with surface irregularities for scrubbing a stain.Type: GrantFiled: January 26, 2011Date of Patent: April 1, 2014Assignee: The Proctor & Gamble CompanyInventors: Nalini Chawla, Karla Mishell Sanchez, Lauren Eisenmenger, Tom Collins, John Charles Wilkins
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Publication number: 20110179586Abstract: A detergent dispensing cap for pre-treating a stained fabric. The cap can have a pour volume sized and dimensioned to provide for a unit dose of the detergent composition. A portion of the cap can be provided with surface irregularities for scrubbing a stain.Type: ApplicationFiled: January 26, 2011Publication date: July 28, 2011Inventors: Nalini Chawla, Karla Mishell Sanchez, Lauren Eisenmenger, Tom Collins, John Charles Wilkins
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Publication number: 20110179587Abstract: A detergent dispensing cap for pre-treating a stained fabric. The cap can have a pour volume sized and dimensioned to provide for a unit dose of the detergent composition. A portion of the cap can be provided with surface irregularities for scrubbing a stain.Type: ApplicationFiled: January 26, 2011Publication date: July 28, 2011Inventors: Nalini Chawla, Karla Mishell Sanchez, Lauren Eisenmenger, Tom Collins, John Charles Wilkins