Patents by Inventor Paul Colbourne

Paul Colbourne 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: 10461493
    Abstract: A device may include a first photodetector to generate a first current based on an optical power of an optical beam. The device may include a beam splitter to split a portion of the optical beam into a first beam and a second beam. The device may include a wavelength filter to filter the first beam and the second beam. The wavelength filter may filter the second beam differently than the first beam based on a difference between an optical path length of the first beam and an optical path length of the second beam through the wavelength filter. The device may include second and third photodetectors to respectively receive, after the wavelength filter, the first beam and the second beam and to generate respective second currents.
    Type: Grant
    Filed: August 10, 2018
    Date of Patent: October 29, 2019
    Assignee: Lumentum Operations LLC
    Inventors: Wei Xiong, Michael C. Larson, Paul Colbourne, Sheldon McLaughlin
  • Patent number: 10436947
    Abstract: A zoned waveplate has a series of transversely stacked birefringent zones alternating with non-birefringent zones. The birefringent and non-birefringent zones are integrally formed upon an AR-coated face of a single substrate by patterning the AR coated face of the substrate with zero-order sub-wavelength form-birefringent gratings configured to have a target retardance. The layer structure of the AR coating is designed to provide the target birefringence in the patterned zones and the reflection suppression.
    Type: Grant
    Filed: May 7, 2018
    Date of Patent: October 8, 2019
    Assignee: Lumentum Operations LLC
    Inventors: John Michael Miller, Joel Milgram, Karen Denise Hendrix, Michael O'Leary, Hery Djie, Lu Tian, Paul Colbourne
  • Publication number: 20190245316
    Abstract: An optical device may include a package having a first port for receiving signal light, a source for providing pump light, a combiner for combining the signal light and the pump light into combined light, a second port for sending the combined light, a third port for receiving amplified light, and a free-space optical system for filtering amplified signal light from the amplified light, and a fourth port for sending the amplified signal light. The free-space optical system may include beam shaping optics that enlarge a beam size of the amplified light prior to the filtering.
    Type: Application
    Filed: February 6, 2018
    Publication date: August 8, 2019
    Inventors: Jiamin ZHENG, Barrie P. KEYWORTH, Paul COLBOURNE, Dhanorm PLUMWONGROT, Gareth Jones, Sheldon MCLAUGHLIN
  • Publication number: 20190238252
    Abstract: A first configuration of an optical node may include a set of degrees, each including an inbound wavelength selective switch (WSS) and an outbound WSS. The first configuration may include a first degree expansion including a first inbound expansion WSS and a first outbound expansion WSS. An expansion input of the first inbound expansion WSS may connect to an expansion output of a second outbound expansion WSS included in a second degree expansion of a second configuration of the optical node. An expansion output of the first outbound expansion WSS may connect to an expansion input of a second inbound expansion WSS included in the second degree expansion of the second configuration. A signal input to an inbound WSS of a given one of the set of degrees may be routed, via the first degree expansion and the second degree expansion, to any drop port included in the second configuration.
    Type: Application
    Filed: April 5, 2019
    Publication date: August 1, 2019
    Inventors: Paul COLBOURNE, Brian SMITH
  • Publication number: 20190006816
    Abstract: A device may include a first photodetector to generate a first current based on an optical power of an optical beam. The device may include a beam splitter to split a portion of the optical beam into a first beam and a second beam. The device may include a wavelength filter to filter the first beam and the second beam. The wavelength filter may filter the second beam differently than the first beam based on a difference between an optical path length of the first beam and an optical path length of the second beam through the wavelength filter. The device may include second and third photodetectors to respectively receive, after the wavelength filter, the first beam and the second beam and to generate respective second currents.
    Type: Application
    Filed: August 10, 2018
    Publication date: January 3, 2019
    Inventors: Wei Xiong, Michael C. Larson, Paul Colbourne, Sheldon McLaughlin
  • Publication number: 20180337746
    Abstract: A wavelength selective switch (WSS) may include a first set of ports, each to launch a respective beam of a first set of beams, wherein the first set of beams is provided to a first position on a focal plane, and wherein a first set of wavelength channel sub-beams, included in a beam of the first set of beams, is to be incident on a particular section of a switching array. The WSS may include a second set of ports, each to launch a respective beam of a second set of beams, wherein the second set of beams is provided to a second position on the focal plane, wherein the second position is different from the first position, and wherein a second set of wavelength channel sub-beams, included in a beam of the second set of beams, is to be incident on the particular section of the switching array.
    Type: Application
    Filed: August 24, 2017
    Publication date: November 22, 2018
    Inventors: Paul COLBOURNE, Sheldon Mclaughlin
  • Patent number: 10135559
    Abstract: A wavelength selective switch (WSS) may include a first set of ports, each to launch a respective beam of a first set of beams, wherein the first set of beams is provided to a first position on a focal plane, and wherein a first set of wavelength channel sub-beams, included in a beam of the first set of beams, is to be incident on a particular section of a switching array. The WSS may include a second set of ports, each to launch a respective beam of a second set of beams, wherein the second set of beams is provided to a second position on the focal plane, wherein the second position is different from the first position, and wherein a second set of wavelength channel sub-beams, included in a beam of the second set of beams, is to be incident on the particular section of the switching array.
    Type: Grant
    Filed: August 24, 2017
    Date of Patent: November 20, 2018
    Assignee: Lumentum Operations LLC
    Inventors: Paul Colbourne, Sheldon McLaughlin
  • Publication number: 20180316991
    Abstract: An optical node may include D (D?2) input ports, D output ports, and D degrees. Each degree may include an inbound M×N (M?D, N?2D) WSS and an outbound M×N WSS. Each inbound M×N WSS may include an input connected to one of the D input ports; inputs connected to outputs of inbound M×N WSSs of the other degrees; outputs connected to inputs of outbound M×N WSSs of the other degrees; outputs connected to inputs of inbound M×N WSSs of the other degrees; and a local drop port. Each outbound M×N WSS may include an output connected to one of the D input ports; outputs connected to inputs of outbound M×N WSSs of the other degrees; inputs connected to outputs of inbound M×N WSSs of the other degrees; inputs connected to outputs of outbound M×N WSSs of the other degrees; and a local add port.
    Type: Application
    Filed: June 20, 2018
    Publication date: November 1, 2018
    Inventor: Paul COLBOURNE
  • Publication number: 20180252845
    Abstract: A zoned waveplate has a series of transversely stacked birefringent zones alternating with non-birefringent zones. The birefringent and non-birefringent zones are integrally formed upon an AR-coated face of a single substrate by patterning the AR coated face of the substrate with zero-order sub-wavelength form-birefringent gratings configured to have a target retardance. The layer structure of the AR coating is designed to provide the target birefringence in the patterned zones and the reflection suppression.
    Type: Application
    Filed: May 7, 2018
    Publication date: September 6, 2018
    Inventors: John Michael Miller, Joel Milgram, Karen Denise Hendrix, Michael O'Leary, Hery Djie, Lu Tian, Paul Colbourne
  • Patent number: 10050405
    Abstract: A device may include a first photodetector to generate a first current based on an optical power of an optical beam. The device may include a beam splitter to split a portion of the optical beam into a first beam and a second beam. The device may include a wavelength filter to filter the first beam and the second beam. The wavelength filter may filter the second beam differently than the first beam based on a difference between an optical path length of the first beam and an optical path length of the second beam through the wavelength filter. The device may include second and third photodetectors to respectively receive, after the wavelength filter, the first beam and the second beam and to generate respective second currents.
    Type: Grant
    Filed: April 19, 2016
    Date of Patent: August 14, 2018
    Assignee: Lumentum Operations LLC
    Inventors: Wei Xiong, Michael C. Larson, Paul Colbourne, Sheldon McLaughlin
  • Patent number: 10028040
    Abstract: An optical node may include D (D?2) input ports, D output ports, and D degrees. Each degree may include an inbound M×N (M?D, N?2D) WSS and an outbound M×N WSS. Each inbound M×N WSS may include an input connected to one of the D input ports; inputs connected to outputs of inbound M×N WSSs of the other degrees; outputs connected to inputs of outbound M×N WSSs of the other degrees; outputs connected to inputs of inbound M×N WSSs of the other degrees; and a local drop port. Each outbound M×N WSS may include an output connected to one of the D input ports; outputs connected to inputs of outbound M×N WSSs of the other degrees; inputs connected to outputs of inbound M×N WSSs of the other degrees; inputs connected to outputs of outbound M×N WSSs of the other degrees; and a local add port.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: July 17, 2018
    Assignee: Lumentum Operations LLC
    Inventor: Paul Colbourne
  • Patent number: 9998253
    Abstract: A wavelength selective switch (WSS) may include a front-end unit that includes an input few-mode fiber (FMF) providing an input optical signal including multiple wavelengths. The multiple wavelengths may each have N modes. The front-end unit may include two or more output few-mode fibers (FMFs), and a side that has a 1×N port for each of the input FMF and the two or more output FMFs. Each of the 1×N ports may be single mode in a wavelength dispersion dimension and N-mode in a switching dimension. The WSS may include a switching element to receive the input optical signal from the front-end unit, switch each of the multiple wavelengths of the input optical signal to form one or more output optical signals, and direct each of the one or more output optical signals to a corresponding 1×N port of the front-end unit.
    Type: Grant
    Filed: September 14, 2016
    Date of Patent: June 12, 2018
    Assignee: Lumentum Operations LLC
    Inventor: Paul Colbourne
  • Patent number: 9964707
    Abstract: An optical cross-connect including two deflector arrays optically separated by an angle-to-offset (ATO) element, wherein each deflector array includes a plurality of deflectors aligned in an array direction, each deflector array having a switching direction substantially perpendicular to the corresponding array direction, the array direction of the two deflector arrays being substantially perpendicular. Beam shaping optics convert light transmitted towards the first deflector array to have an elliptical cross-section at the first deflector array, thus providing a relatively simple and compact optical cross-connect.
    Type: Grant
    Filed: November 7, 2016
    Date of Patent: May 8, 2018
    Assignee: Lumentum Operations LLC
    Inventor: Paul Colbourne
  • Patent number: 9964668
    Abstract: A zoned waveplate has a series of transversely stacked birefringent zones alternating with non-birefringent zones. The birefringent and non-birefringent zones are integrally formed upon an AR-coated face of a single substrate by patterning the AR coated face of the substrate with zero-order sub-wavelength form-birefringent gratings configured to have a target retardance. The layer structure of the AR coating is designed to provide the target birefringence in the patterned zones and the reflection suppression.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: May 8, 2018
    Assignee: Lumentum Operations LLC
    Inventors: John Michael Miller, Joel Milgram, Karen Denise Hendrix, Michael O'Leary, Hery Djie, Lu Tian, Paul Colbourne
  • Patent number: 9913008
    Abstract: A wavelength selective switch (WSS) may include a first port array including input ports, each to launch a respective beam of light, and a dispersive element to separate, in a lateral direction, a beam of light, launched by one of the input ports, into dispersed wavelength channel sub-beams. The WSS may include a switching array to direct the dispersed wavelength channel sub-beams, at respective angles in a vertical direction. The dispersive element may converge groups of dispersed wavelength channel sub-beams in the lateral direction to form wavelength channel sub-beams. The WSS may include a splitting element to split, in the lateral direction, a wavelength channel sub-beam, of the wavelength channel sub-beams, into split wavelength channel sub-beams. The WSS may include switching elements to direct the split wavelength channel sub-beams at respective angles in the vertical direction, and output ports associated with the switching elements.
    Type: Grant
    Filed: June 6, 2017
    Date of Patent: March 6, 2018
    Assignee: Lumentum Operations LLC
    Inventors: Barrie P. Keyworth, Paul Colbourne
  • Patent number: 9883263
    Abstract: A free-space MCS may include an input port to launch a beam of light, N output ports, a beam splitter to split the beam of light into N portions, and a deflector array including N deflectors aligned in an array direction. Each deflector may have an active region with a size in the array direction that matches a size in the array direction of a portion, of the N portions, incident thereon. The free-space MCS may include first beam shaping optics to form a first elliptical beam spot at the beam splitter with a major axis substantially perpendicular to the switching direction, and an angle-to-offset element to direct each of the N portions from the beam splitter to a different deflector of the N deflectors. Each of the N portions may have, at the deflector, a second elliptical beam spot with a major axis substantially parallel to the switching direction.
    Type: Grant
    Filed: December 19, 2016
    Date of Patent: January 30, 2018
    Assignee: Lumentum Operations LLC
    Inventor: Paul Colbourne
  • Publication number: 20170307785
    Abstract: A zoned waveplate has a series of transversely stacked birefringent zones alternating with non-birefringent zones. The birefringent and non-birefringent zones are integrally formed upon an AR-coated face of a single substrate by patterning the AR coated face of the substrate with zero-order sub-wavelength form-birefringent gratings configured to have a target retardance. The layer structure of the AR coating is designed to provide the target birefringence in the patterned zones and the reflection suppression.
    Type: Application
    Filed: April 24, 2017
    Publication date: October 26, 2017
    Inventors: John Michael Miller, Joel MILGRAM, Karen Denise HENDRIX, Michael O’LEARY, Hery DJIE, Lu TIAN, Paul COLBOURNE
  • Publication number: 20170302051
    Abstract: A device may include a first photodetector to generate a first current based on an optical power of an optical beam. The device may include a beam splitter to split a portion of the optical beam into a first beam and a second beam. The device may include a wavelength filter to filter the first beam and the second beam. The wavelength filter may filter the second beam differently than the first beam based on a difference between an optical path length of the first beam and an optical path length of the second beam through the wavelength filter. The device may include second and third photodetectors to respectively receive, after the wavelength filter, the first beam and the second beam and to generate respective second currents.
    Type: Application
    Filed: April 19, 2016
    Publication date: October 19, 2017
    Inventors: Wei XIONG, Michael C. LARSON, Paul COLBOURNE, Sheldon MCLAUGHLIN
  • Publication number: 20170123161
    Abstract: An optical cross-connect including two deflector arrays optically separated by an angle-to-offset (ATO) element, wherein each deflector array includes a plurality of deflectors aligned in an array direction, each deflector array having a switching direction substantially perpendicular to the corresponding array direction, the array direction of the two deflector arrays being substantially perpendicular. Beam shaping optics convert light transmitted towards the first deflector array to have an elliptical cross-section at the first deflector array, thus providing a relatively simple and compact optical cross-connect.
    Type: Application
    Filed: November 7, 2016
    Publication date: May 4, 2017
    Inventor: Paul COLBOURNE
  • Patent number: 9632225
    Abstract: A zoned waveplate has a series of transversely stacked birefringent zones alternating with non-birefringent zones. The birefringent and non-birefringent zones are integrally formed upon an AR-coated face of a single substrate by patterning the AR coated face of the substrate with zero-order sub-wavelength form-birefringent gratings configured to have a target retardance. The layer structure of the AR coating is designed to provide the target birefringence in the patterned zones and the reflection suppression.
    Type: Grant
    Filed: July 14, 2015
    Date of Patent: April 25, 2017
    Assignee: Lumentum Operations LLC
    Inventors: John Michael Miller, Joel Milgram, Karen Denise Hendrix, Michael O'Leary, Hery Djie, Lu Tian, Paul Colbourne