Patents by Inventor Hazel Benton Matthews, III
Hazel Benton Matthews, III 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: 11681098Abstract: Embodiments of the current disclosure include low moat volume single mode ultra-low loss optical fibers. In some embodiments, a single mode optical fiber includes a first core region; a second core region surrounding and directly adjacent to the first core region, wherein a volume V of the second core region is less than or equal to 14% ??m2; a cladding region surrounding the core region; and wherein the optical fiber has a cable cutoff of less than 1260 nm, a mode field diameter at 1310 nm of 8.6 microns to 9.7 microns, a mode field diameter at 1550 nm of 9.9 microns to 11 microns, and an attenuation at 1550 nm of less than or equal to 0.17 dB/km.Type: GrantFiled: December 10, 2021Date of Patent: June 20, 2023Assignee: Corning IncorporatedInventors: Peter Gottfried Hebgen, Hazel Benton Matthews, III, Snigdharaj Kumar Mishra
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Publication number: 20230168428Abstract: An optical fiber includes a core region of silica glass doped with an alkali metal oxide. A depressed-index cladding region surrounds the core region and comprises silica glass doped with a first concentration of fluorine. The depressed-index cladding region has a minimum relative refractive index ?3min in a range from ?0.80% to ?0.30%. An outer cladding region comprises silica glass doped with a second, lesser concentration. The outer cladding region has a relative refractive index ?4, where ?4??3min>0.05%. The optical fiber has a time-to-peak hydrogen aging value at 23° C. of less than 100 hours upon exposure to an atmosphere having a total pressure of 1 atm and containing a partial pressure of 0.01 atm H2 and a partial pressure of 0.99 atm N2. The optical fiber exhibits an attenuation <0.16 dB/km.Type: ApplicationFiled: November 18, 2022Publication date: June 1, 2023Inventors: Rostislav Radiyevich Khrapko, Hazel Benton Matthews, III, Pushkar Tandon
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Patent number: 11506835Abstract: The present disclosure provides optical fibers that exhibit low macrobend loss at 1550 nm at bend diameters greater than 40 mm. The relative refractive index profile of the fibers includes a trench cladding region having a trench volume configured to minimize macrobend loss at large bend diameters. The thickness and/or depth of the trench cladding region are controlled to reduce trench volume to a degree consistent with reducing macrobend loss at bend diameters greater than 40 mm. The optical fiber includes an outer cladding region that surrounds and is directly adjacent to the trench cladding region and an optional offset cladding region between the trench cladding region and the core region. In some embodiments, the core region is a segmented core region that includes inner and outer core regions. The low macrobend loss available from the optical fibers makes them particularly suitable for applications in submarine telecommunications systems.Type: GrantFiled: October 28, 2020Date of Patent: November 22, 2022Assignee: Corning IncorporatedInventors: Peter Gottfried Hebgen, Hazel Benton Matthews, III, Snigdharaj Kumar Mishra
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Publication number: 20220187531Abstract: Embodiments of the current disclosure include low moat volume single mode ultra-low loss optical fibers. In some embodiments, a single mode optical fiber includes a first core region; a second core region surrounding and directly adjacent to the first core region, wherein a volume V of the second core region is less than or equal to 14% ??m2; a cladding region surrounding the core region; and wherein the optical fiber has a cable cutoff of less than 1260 nm, a mode field diameter at 1310 nm of 8.6 microns to 9.7 microns, a mode field diameter at 1550 nm of 9.9 microns to 11 microns, and an attenuation at 1550 nm of less than or equal to 0.17 dB/km.Type: ApplicationFiled: December 10, 2021Publication date: June 16, 2022Inventors: Peter Gottfried Hebgen, Hazel Benton Matthews, III, Snigdharaj Kumar Mishra
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Publication number: 20210157048Abstract: The present disclosure provides optical fibers that exhibit low macrobend loss at 1550 nm at bend diameters greater than 40 mm. The relative refractive index profile of the fibers includes a trench cladding region having a trench volume configured to minimize macrobend loss at large bend diameters. The thickness and/or depth of the trench cladding region are controlled to reduce trench volume to a degree consistent with reducing macrobend loss at bend diameters greater than 40 mm. The optical fiber includes an outer cladding region that surrounds and is directly adjacent to the trench cladding region and an optional offset cladding region between the trench cladding region and the core region. In some embodiments, the core region is a segmented core region that includes inner and outer core regions. The low macrobend loss available from the optical fibers makes them particularly suitable for applications in submarine telecommunications systems.Type: ApplicationFiled: October 28, 2020Publication date: May 27, 2021Inventors: Peter Gottfried Hebgen, Hazel Benton Matthews, III, Snigdharaj Kumar Mishra
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Publication number: 20210116634Abstract: An optical fiber includes a core portion having a radius rC and a graded refractive index profile ?C having an alpha value greater than or equal to 1 and less than or equal to 8. The core portion includes a silica-based glass and a down-dopant, where a concentration of the down-dopant is graded such that the concentration of the down-dopant decreases from the radius rC towards the center of the core portion. The optical fiber comprises a cladding portion surrounding the core portion and having a relative refractive index ?OC that is less than a maximum refractive index ?Cmax of the core portion.Type: ApplicationFiled: October 15, 2020Publication date: April 22, 2021Inventors: Peter Gottfried Hebgen, Stephan Lvovich Logunov, Hazel Benton Matthews, III, Snigdharaj Kumar Mishra
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Patent number: 10228509Abstract: A single mode optical fiber having a core made from silica and less than or equal to about 6.5 weight % germania and having a maximum relative refractive index ?1MAX. The optical fiber also has an inner cladding surrounding the core and having a minimum relative refractive index ?2MIN. A difference between a softening point of the core and a softening point of the inner cladding is less than or equal to about 20° C., and ?1MAX>?2MIN. The single mode optical fiber may also have an outer cladding surrounding the inner cladding made from silica or SiON. The outer cladding has a maximum relative refractive index ?3MAX, and ?3MAX>?2MIN. A method for manufacturing an optical fiber includes providing a preform to a first furnace, the preform, drawing the optical fiber from the preform, and cooling the drawn optical fiber in a second furnace.Type: GrantFiled: April 12, 2017Date of Patent: March 12, 2019Assignee: Corning IncorporatedInventors: Dana Craig Bookbinder, Ming-Jun Li, Hazel Benton Matthews, III, Pushkar Tandon
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Patent number: 9878943Abstract: The present disclosure is directed to a method of making an optical fiber with improved bend performance, the optical fiber having a core and at least one cladding layer, and a chlorine content in the in the last layer of the at least one cladding layer that is greater than 500 ppm by weight. The fiber is prepared using a mixture of a carrier gas, a gaseous chlorine source material and a gaseous reducing agent during the sintering of the last or outermost layer of the at least one cladding layer. The inclusion of the reducing gas into a mixture of the carrier gas and gaseous chlorine material reduces oxygen-rich defects that results in at least a 20% reduction in TTP during hydrogen aging testing.Type: GrantFiled: March 28, 2017Date of Patent: January 30, 2018Assignee: Corning IncorporatedInventors: Dana Craig Bookbinder, Robert Brett Desorcie, Hazel Benton Matthews, III, Pushkar Tandon
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Patent number: 9851499Abstract: An optical fiber with large effective area, low bending loss and low attenuation. The optical fiber includes a core, an inner cladding region, and an outer cladding region. The core region includes a spatially uniform updopant to minimize low Rayleigh scattering and a relative refractive index and radius configured to provide large effective area. The inner cladding region features a large trench volume to minimize bending loss. The core may be doped with Cl and the inner cladding region may be doped with F.Type: GrantFiled: February 17, 2017Date of Patent: December 26, 2017Assignee: Corning IncorporatedInventors: Dana Craig Bookbinder, Ming-Jun Li, Hazel Benton Matthews, III, Snigdharaj Kumar Mishra, Pushkar Tandon
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Publication number: 20170219770Abstract: A single mode optical fiber having a core made from silica and less than or equal to about 6.5 weight % germania and having a maximum relative refractive index ?1MAX. The optical fiber also has an inner cladding surrounding the core and having a minimum relative refractive index ?2MIN. A difference between a softening point of the core and a softening point of the inner cladding is less than or equal to about 20° C., and ?1MAX>?2MIN. The single mode optical fiber may also have an outer cladding surrounding the inner cladding made from silica or SiON. The outer cladding has a maximum relative refractive index ?3MAX, and ?3MAX>?2MIN. A method for manufacturing an optical fiber includes providing a preform to a first furnace, the preform, drawing the optical fiber from the preform, and cooling the drawn optical fiber in a second furnace.Type: ApplicationFiled: April 12, 2017Publication date: August 3, 2017Inventors: Dana Craig Bookbinder, Ming-Jun Li, Hazel Benton Matthews, III, Pushkar Tandon
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Publication number: 20170197878Abstract: The present disclosure is directed to a method of making an optical fiber with improved bend performance, the optical fiber having a core and at least one cladding layer, and a chlorine content in the in the last layer of the at least one cladding layer that is greater than 500 ppm by weight. The fiber is prepared using a mixture of a carrier gas, a gaseous chlorine source material and a gaseous reducing agent during the sintering of the last or outermost layer of the at least one cladding layer. The inclusion of the reducing gas into a mixture of the carrier gas and gaseous chlorine material reduces oxygen-rich defects that results in at least a 20% reduction in TTP during hydrogen aging testing.Type: ApplicationFiled: March 28, 2017Publication date: July 13, 2017Inventors: Dana Craig Bookbinder, Robert Brett Desorcie, Hazel Benton Matthews, III, Pushkar Tandon
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Publication number: 20170160465Abstract: An optical fiber with large effective area, low bending loss and low attenuation. The optical fiber includes a core, an inner cladding region, and an outer cladding region. The core region includes a spatially uniform updopant to minimize low Rayleigh scattering and a relative refractive index and radius configured to provide large effective area. The inner cladding region features a large trench volume to minimize bending loss. The core may be doped with Cl and the inner cladding region may be doped with F.Type: ApplicationFiled: February 17, 2017Publication date: June 8, 2017Inventors: Dana Craig Bookbinder, Ming-Jun LI, Hazel Benton Matthews, III, Snigdharaj Kumar Mishra, Pushkar Tandon
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Patent number: 9658394Abstract: A single mode optical fiber having a core made from silica and less than or equal to about 6.5 weight % germania and having a maximum relative refractive index ?1MAX. The optical fiber also has an inner cladding surrounding the core and having a minimum relative refractive index ?2MIN. A difference between a softening point of the core and a softening point of the inner cladding is less than or equal to about 20° C., and ?1MAX>?2MIN. The single mode optical fiber may also have an outer cladding surrounding the inner cladding made from silica or SiON. The outer cladding has a maximum relative refractive index ?3MAX, and ?3MAX>?2MIN. A method for manufacturing an optical fiber includes providing a preform to a first furnace, the preform, drawing the optical fiber from the preform, and cooling the drawn optical fiber in a second furnace.Type: GrantFiled: June 2, 2015Date of Patent: May 23, 2017Assignee: Corning IncorporatedInventors: Dana Craig Bookbinder, Ming-Jun Li, Hazel Benton Matthews, III, Pushkar Tandon
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Patent number: 9650281Abstract: The present disclosure is directed to a method of making an optical fiber with improved bend performance, the optical fiber having a core and at least one cladding layer, and a chlorine content in the in the last layer of the at least one cladding layer that is greater than 500 ppm by weight. The fiber is prepared using a mixture of a carrier gas, a gaseous chlorine source material and a gaseous reducing agent during the sintering of the last or outermost layer of the at least one cladding layer. The inclusion of the reducing gas into a mixture of the carrier gas and gaseous chlorine material reduces oxygen-rich defects that results in at least a 20% reduction in TTP during hydrogen aging testing.Type: GrantFiled: June 9, 2015Date of Patent: May 16, 2017Assignee: Corning IncorporatedInventors: Dana Craig Bookbinder, Robert Brett Desorcie, Hazel Benton Matthews, III, Pushkar Tandon
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Publication number: 20170097465Abstract: An optical fiber with large effective area, low bending loss and low attenuation. The optical fiber includes a core, an inner cladding region, and an outer cladding region. The core region includes a spatially uniform updopant to minimize low Rayleigh scattering and a relative refractive index and radius configured to provide large effective area. The inner cladding region features a large trench volume to minimize bending loss. The core may be doped with Cl and the inner cladding region may be doped with F.Type: ApplicationFiled: June 21, 2016Publication date: April 6, 2017Inventors: Dana Craig Bookbinder, Ming-Jun Li, Hazel Benton Matthews, III, Snigdharaj Kumar Mishra, Pushkar Tandon
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Patent number: 9594210Abstract: An optical fiber with large effective area, low bending loss and low attenuation. The optical fiber includes a core, an inner cladding region, and an outer cladding region. The core region includes a spatially uniform updopant to minimize low Rayleigh scattering and a relative refractive index and radius configured to provide large effective area. The inner cladding region features a large trench volume to minimize bending loss. The core may be doped with Cl and the inner cladding region may be doped with F.Type: GrantFiled: June 21, 2016Date of Patent: March 14, 2017Assignee: Corning IncorporatedInventors: Dana Craig Bookbinder, Ming-Jun Li, Hazel Benton Matthews, III, Snigdharaj Kumar Mishra, Pushkar Tandon
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Publication number: 20170003445Abstract: An optical fiber with large effective area, low bending loss and low attenuation. The optical fiber includes a core, an inner cladding region, and an outer cladding region. The core region includes a spatially uniform updopant to minimize low Rayleigh scattering and a relative refractive index and radius configured to provide large effective area. The inner cladding region features a large trench volume to minimize bending loss. The core may be doped with Cl and the inner cladding region may be doped with F.Type: ApplicationFiled: June 21, 2016Publication date: January 5, 2017Inventors: Dana Craig Bookbinder, Ming-Jun Li, Hazel Benton Matthews, III, Snigdharaj Kumar Mishra, Pushkar Tandon
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Publication number: 20160009588Abstract: The present disclosure is directed to a method of making an optical fiber with improved bend performance, the optical fiber having a core and at least one cladding layer, and a chlorine content in the in the last layer of the at least one cladding layer that is greater than 500 ppm by weight. The fiber is prepared using a mixture of a carrier gas, a gaseous chlorine source material and a gaseous reducing agent during the sintering of the last or outermost layer of the at least one cladding layer. The inclusion of the reducing gas into a mixture of the carrier gas and gaseous chlorine material reduces oxygen-rich defects that results in at least a 20% reduction in TTP during hydrogen aging testing.Type: ApplicationFiled: June 9, 2015Publication date: January 14, 2016Inventors: Dana Craig Bookbinder, Robert Brett Desorcie, Hazel Benton Matthews, III, Pushkar Tandon
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Publication number: 20150370010Abstract: A single mode optical fiber having a core made from silica and less than or equal to about 6.5 weight % germania and having a maximum relative refractive index ?1MAX. The optical fiber also has an inner cladding surrounding the core and having a minimum relative refractive index ?2MIN. A difference between a softening point of the core and a softening point of the inner cladding is less than or equal to about 20° C., and ?1MAX>?2MIN. The single mode optical fiber may also have an outer cladding surrounding the inner cladding made from silica or SiON. The outer cladding has a maximum relative refractive index ?3MAX, and ?3MAX>?2MIN. A method for manufacturing an optical fiber includes providing a preform to a first furnace, the preform, drawing the optical fiber from the preform, and cooling the drawn optical fiber in a second furnace.Type: ApplicationFiled: June 2, 2015Publication date: December 24, 2015Inventors: Dana Craig Bookbinder, Ming-Jun Li, Hazel Benton Matthews, III, Pushkar Tandon