Patents by Inventor Daniel Aloysius Nolan

Daniel Aloysius Nolan 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).

  • Patent number: 7903917
    Abstract: Optical waveguide fiber that is bend resistant and single mode at 1260 nm and at higher wavelengths. The optical fiber includes a core of radius R1 and cladding, the cladding having an annular inner region of radius R2, an annular ring region, and an annular outer region. The annular ring region starts at R2, and the ratio R1/R2 is greater than 0.40.
    Type: Grant
    Filed: November 4, 2009
    Date of Patent: March 8, 2011
    Assignee: Corning Incorporated
    Inventors: Scott Robertson Bickham, Dana Craig Bookbinder, Ming-Jun Li, Snigdharaj Kumar Mishra, Daniel Aloysius Nolan, Pushkar Tandon
  • Patent number: 7844155
    Abstract: Disclosed is an optical fiber having a silica-based core comprising an alkali metal oxide a silica-based core, said core comprising an alkali metal oxide selected from the group consisting of K2O, Na2O, Li2O, Rb2O, Cs2O and mixtures thereof in an average concentration in said core between about 10 and 10000 ppm by weight, and a silica-based cladding surrounding and directly adjacent the core, the cladding including a region having a lower index of refraction than the remainder of such cladding. By appropriately selecting the concentration of alkali metal oxide dopant in the core and the cladding, a low loss optical fiber may be obtained which exhibits a cable cutoff less than 1400 nm chromatic dispersion at 1550 nm between about 13 and 19 ps/nm/km, and a zero dispersion wavelength less than about 1324 nm.
    Type: Grant
    Filed: April 15, 2008
    Date of Patent: November 30, 2010
    Assignee: Corning Incorporated
    Inventors: Scott Robertson Bickham, Dana Craig Bookbinder, Ming-Jun Li, Snigdharaj Kumar Mishra, Daniel Aloysius Nolan, Pushkar Tandon
  • Publication number: 20100277719
    Abstract: A detection system includes a length of optical fiber and an OTDR coupled to the optical fiber. The OTDR includes a radiation source providing pulsed radiation to the fiber, a detector detecting radiation that is backscattered through the fiber, and a processor capable of analyzing the variation of the radiation that is backscattered through the fiber. At least two polarization dependent sensing elements are positioned along the length of optical fiber.
    Type: Application
    Filed: April 29, 2009
    Publication date: November 4, 2010
    Inventors: Xin Chen, Michael Etienne, Daniel Aloysius Nolan
  • Publication number: 20100272406
    Abstract: Bend resistant multimode optical fibers are disclosed herein. Multimode optical fibers disclosed herein comprise a core region and a cladding region surrounding and directly adjacent to the core region, the cladding region comprising a depressed-index annular portion comprising a depressed relative refractive index.
    Type: Application
    Filed: July 6, 2010
    Publication date: October 28, 2010
    Inventors: Dana Craig Bookbinder, Ming-Jun Li, Daniel Aloysius Nolan
  • Patent number: 7787731
    Abstract: Bend resistant multimode optical fibers are disclosed herein. Multimode optical fibers disclosed herein comprise a core region and a cladding region surrounding and directly adjacent to the core region, the cladding region comprising a depressed-index annular portion comprising a depressed relative refractive index.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: August 31, 2010
    Assignee: Corning Incorporated
    Inventors: Dana Craig Bookbinder, Ming-Jun Li, Daniel Aloysius Nolan
  • Publication number: 20100195966
    Abstract: According to some embodiments an optical waveguide fiber comprises: (i) a Ge free core having an effective area of 90 ?m2 to 160 ?m2, at a 1550 nm wavelength, and ? value 12???25, said core comprising: (a) a central core region extending radially outwardly from a centerline to a radius 0 ?m?r0?2 ?m, and having a relative refractive index percent profile ?0(r) in % measured relative to pure silica, wherein ?0.1%??0(r)?0.1%, wherein the central core region has a maximum relative refractive index percent, ?0MAX, (b) a first annular core region surrounding and directly adjacent to the central core region and extending to an outer radius r1, wherein 4.8 ?m?r1?10 ?m, and having a relative refractive index percent profile, ?1(r) in % measured relative to pure silica, and a minimum relative refractive index, ?2MIN, and the relative refractive index measured at a radius r=2.5 ?m being: ?0.15??1(r=2.5 ?m)?0, and ?0MAX??1(r=2.
    Type: Application
    Filed: January 29, 2010
    Publication date: August 5, 2010
    Inventors: Scott Robertson Bickham, Dana Craig Bookbinder, Ming-Jun Li, Snigdharaj Kumar Mishra, Daniel Aloysius Nolan, Pushkar Tandon
  • Publication number: 20100142890
    Abstract: Generation of a cylindrically polarized light beam, and in particular, a hybrid-azimuthal-radial polarization beams, called HARP modes, generated from an input linearly polarized Gaussian beam using a spun optical waveguide device is taught. The HARP modes are comprised of hybrid-azimuthal polarization (HAP) and hybrid-radial polarization (HRP) superposition modes. These beams possess a non-zero local angular momentum density that is spatially varying and a zero total angular momentum.
    Type: Application
    Filed: July 7, 2009
    Publication date: June 10, 2010
    Inventors: Robert R. Alfano, Xin Chen, Joohyun Koh, Ming-Jun Li, Daniel Aloysius Nolan, Henry Sztul
  • Patent number: 7697809
    Abstract: An optical fiber, comprising: (i) a core having a core center and a radius or a width a, (ii) a cladding surrounding the core, and (iii) at least one stress member situated proximate to the fiber core within the cladding, said stress member comprising silica co-doped with F and at least one dopant selected from the list consisting of: GeO2, P2O5, Y2O3, TiO2 and Al2O3, wherein distance b between the stress member and the core center satisfies the following equation: 1?b/a<2.
    Type: Grant
    Filed: July 23, 2008
    Date of Patent: April 13, 2010
    Assignee: Corning Incorporated
    Inventors: Dana Craig Bookbinder, Xin Chen, Joohyun Koh, Ming-Jun Li, Daniel Aloysius Nolan
  • Publication number: 20100085558
    Abstract: A detection system comprising: (i) an optical fiber, the optical fiber having (a) a length L?1 km; (b) beat length between 10 m and 100 m; and (c) beat length uniformity over any distance of at least 100 m within the length L is characterized by standard deviation ?, where |?|?10 m; (ii) an OTDR coupled to the fiber and including (a) a radiation source providing pulsed radiation to the fiber, (b) a detection system capable of detecting radiation that is backscattered back through the fiber; and (iii) at least one polarizer situated between the fiber and the detector, such that the backscattered radiation passes through the polarizer before reaching the detector.
    Type: Application
    Filed: February 4, 2009
    Publication date: April 8, 2010
    Inventors: Xin Chen, Joohyun Koh, Ming-Jun Li, Daniel Aloysius Nolan
  • Publication number: 20100086271
    Abstract: A method for making low PMD fiber comprising the steps of: (i) making an initial fiber preform; (ii) modifying said initial fiber preform to introduce higher birefringence than that of the initial fiber preform into modified preform; and (iii) drawing an optical fiber from the modified preform and bi-directionally spinning the drawn fiber during draw.
    Type: Application
    Filed: September 23, 2009
    Publication date: April 8, 2010
    Inventors: Xin Chen, Timothy Leonard Hunt, Joohyun Koh, Ming-Jun Li, Daniel Aloysius Nolan
  • Publication number: 20100046899
    Abstract: Optical waveguide fiber that is bend resistant and single mode at 1260 nm and at higher wavelengths. The optical fiber includes a core of radius R1 and cladding, the cladding having an annular inner region of radius R2, an annular ring region, and an annular outer region. The annular ring region starts at R2, and the ratio R1/R2 is greater than 0.40.
    Type: Application
    Filed: November 4, 2009
    Publication date: February 25, 2010
    Inventors: Scott Robertson Bickham, Dana Craig Bookbinder, Ming-Jun Li, Snigdharaj Kumar Mishra, Daniel Aloysius Nolan, Pushkar Tandon
  • Publication number: 20100040336
    Abstract: Multimode optical fiber is disclosed herein having a core surrounded by first and second annular cladding regions. The second annular cladding region has a maximum relative refractive index that is at least 0.05% higher than the minimum relative refractive index of the first annular cladding region.
    Type: Application
    Filed: August 3, 2009
    Publication date: February 18, 2010
    Inventors: Xin Chen, Ming-Jun Li, Daniel Aloysius Nolan
  • Patent number: 7620282
    Abstract: Optical waveguide fiber that is bend resistant and single mode at 1260 nm and at higher wavelengths. The optical fiber includes a core of radius R1 and cladding, the cladding having an annular inner region of radius R2, an annular ring region, and an annular outer region. The annular ring region starts at R2, and the ratio R1/R2 is greater than 0.40.
    Type: Grant
    Filed: August 3, 2007
    Date of Patent: November 17, 2009
    Assignee: Corning Incorporated
    Inventors: Scott Robertson Bickham, Dana Craig Bookbinder, Ming-Jun Li, Snigdharaj Kumar Mishra, Daniel Aloysius Nolan, Pushkar Tandon
  • Patent number: 7603015
    Abstract: An optical fiber comprising: a glass core extending from a centerline to a radius R1; a glass cladding surrounding and in contact with the core, the cladding comprising: a first annular region extending from R1 to a radius R2, the first annular region comprising a radial width, W2=R2?R1, a second annular region extending from R2 to a radius R3, the second annular region comprising a radial width, W3=R3?R2, and a third annular region extending from R3 to an outermost glass radius R4; wherein (i) the core comprises a maximum relative refractive index, ?1MAX, relative to the third annular region; (ii) wherein the first annular region comprises a radial width W2; and (iii) the second annular region comprises a minimum relative refractive index, ?3MIN, relative to the third annular region wherein ?1MAX>?2MAX>?3MIN, and ?2MIN>?3MIN; and the core and the cladding provide a fiber with cable cutoff less than 1500 nm, dispersion at 1550 nm less than 12 ps/nm/km, effective area at 1550 nm greater than 60 ?m2, a
    Type: Grant
    Filed: February 21, 2008
    Date of Patent: October 13, 2009
    Assignee: Corning Incorporated
    Inventors: Scott Robertson Bickham, Dana Craig Bookbinder, Xin Chen, Ming-Jun Li, Snigdharaj Kumar Mishra, Daniel Aloysius Nolan, Pushkar Tandon
  • Publication number: 20090219516
    Abstract: An embodiment of a sensor fiber includes: at least two fiber sections with a plurality of holes; and at least one other fiber section situated between said at least two fiber sections, wherein the at least one other fiber sections being without the plurality of holes.
    Type: Application
    Filed: February 26, 2009
    Publication date: September 3, 2009
    Inventors: Dana Craig Bookbinder, Xin Chen, Ming-Jun Li, Daniel Aloysius Nolan
  • Patent number: 7558461
    Abstract: An optical fiber comprising a core having a refractive index profile and a centerline; and a cladding layer surrounding and directly adjacent the core; wherein core includes updoping material and is doped with Aluminum in at least one region of the core, such that either: (a) the average longitudinal acoustic wave velocity within the core is within 0.05% of the longitudinal acoustic wave velocity within the cladding; or (b) the longitudinal acoustic wave velocity in the core changes by at least 0.2%.
    Type: Grant
    Filed: June 14, 2006
    Date of Patent: July 7, 2009
    Assignee: Corning Incorporated
    Inventors: Xin Chen, Stuart Gray, Ming-Jun Li, Daiping Ma, Daniel Aloysius Nolan, Alranzo Boh Ruffin, Donnell Thaddeus Walton, Ji Wang
  • Patent number: 7555187
    Abstract: An optical fiber according to an embodiment of the present invention comprises: a glass core extending from a centerline to a radius R1 wherein R1 is greater than about 5 ?m; a glass cladding surrounding and in contact with the core, the cladding comprising: (i) a first annular region extending from the radius R1 to a radius R2, the first annular region comprising a radial width, W2=R2?R1, (ii) a second annular region extending from the radius R2 to a radius R3, and comprising a radial width, W3=R3?R2, and (iii) a third annular region surrounding the second annular region and extending from the radius R3 to an outermost glass radius R4; wherein the core comprises a maximum relative refractive index, ?1MAX, relative to the third annular region, and wherein ?1MAX is greater than about 0.1% and less than about 0.3%; the first annular region has a refractive index delta ?2(r) is less than about 0.
    Type: Grant
    Filed: May 5, 2008
    Date of Patent: June 30, 2009
    Assignee: Corning Incorporated
    Inventors: Scott Robertson Bickham, Dana Craig Bookbinder, Xin Chen, Ming-Jun Li, Snigdharaj Kumar Mishra, Daniel Aloysius Nolan
  • Patent number: 7526166
    Abstract: An optical fiber comprising: a silica based core having a first index of refraction n1; and at least one silica based cladding surrounding the core, the at least one silica based cladding comprising index lowering non-periodic voids containing a gas, wherein at least 80% of said voids have a maximum cross-sectional dimension of less than 2000 nm, and the NA of the fiber layer situated immediately adjacent to and inside said at least one silica based cladding is at least 0.2.
    Type: Grant
    Filed: January 31, 2007
    Date of Patent: April 28, 2009
    Assignee: Corning Incorporated
    Inventors: Dana Craig Bookbinder, Ming-Jun Li, Michael Thomas Murtagh, Daniel Aloysius Nolan, Pushkar Tandon, Ji Wang
  • Publication number: 20090080843
    Abstract: An optical fiber, comprising: (i) a core having a core center and a radius or a width a, (ii) a cladding surrounding the core, and (iii) at least one stress member situated proximate to the fiber core within the cladding, said stress member comprising silica co-doped with F and at least one dopant selected from the list consisting of: GeO2, P2O5, Y2O3, TiO2 and Al2O3, wherein distance b between the stress member and the core center satisfies the following equation: 1?b/a<2.
    Type: Application
    Filed: July 23, 2008
    Publication date: March 26, 2009
    Inventors: Dana Craig Bookbinder, Xin Chen, Joohyun Koh, Ming-Jun Li, Daniel Aloysius Nolan
  • Patent number: 7505660
    Abstract: Microstructured optical fiber for single-moded transmission of optical signals, the optical fiber including a core region and a cladding region, the cladding region including an annular hole-containing region that contains non-periodically disposed holes. The optical fiber provides single mode transmission and low bend loss.
    Type: Grant
    Filed: May 4, 2007
    Date of Patent: March 17, 2009
    Assignee: Corning Incorporated
    Inventors: Scott Robertson Bickham, Dana Craig Bookbinder, Ming-Jun Li, Daniel Aloysius Nolan, Pushkar Tandon