Patents by Inventor Christopher Doerr

Christopher Doerr 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).

  • Publication number: 20130044974
    Abstract: Endless phase shifting apparatus, structures, and methods useful—for example—in MIMO optical demultiplexing
    Type: Application
    Filed: August 15, 2011
    Publication date: February 21, 2013
    Applicant: ALCATEL-LUCENT USA INC.
    Inventor: Christopher Doerr
  • Publication number: 20120288229
    Abstract: An optical device includes an input/output optical coupler, a waveguide and a waveguide fragment. The optical coupler is configured to separate a received optical signal into first and second signal components. The waveguide is connected to the optical coupler and configured to propagate the first signal component via a first propagation mode. The waveguide fragment is located adjacent to the first waveguide and is configured to couple light from the first waveguide that propagates therein by a different second propagation mode.
    Type: Application
    Filed: May 9, 2011
    Publication date: November 15, 2012
    Inventors: Christopher Doerr, Long Chen
  • Publication number: 20120251034
    Abstract: Various exemplary embodiments relate to an integrated optical device including: a semiconductor waveguide on a substrate; a dielectric waveguide on a substrate optically coupled to the semiconductor waveguide; and a germanium device on the semiconductor waveguide optically coupled to the semiconductor waveguide.
    Type: Application
    Filed: March 31, 2011
    Publication date: October 4, 2012
    Applicant: ALCATEL-LUCENT USA, INC.
    Inventors: Long Chen, Christopher Doerr, Young-Kai Chen
  • Publication number: 20120224813
    Abstract: Various exemplary embodiments relate to an optical waveguide coupler including: a first optical waveguide including a first area and a tapered area having a tapered width; a second optical waveguide including a first area and a tapered area having a tapered width; wherein the first area of the of the second optical waveguide overlaps the tapered area of the first optical wave guide, and wherein the tapered area of the second optical waveguide overlaps the first area of the first optical waveguide.
    Type: Application
    Filed: March 4, 2011
    Publication date: September 6, 2012
    Applicant: ALCATEL-LUCENT USA INC.
    Inventors: Long Chen, Christopher Doerr
  • Publication number: 20120224805
    Abstract: An optical device includes an optical grating coupler and a plurality of optical waveguides coupled thereto. The optical grating coupler is formed along a planar surface of a substrate, and includes a pattern formed by ridges concentrically located on the surface about a center thereon. Each adjacent pair of ridges is separated by a groove. Each waveguide of the plurality of waveguides is oriented about radially with respect to the center, and has a first end that terminates near an outermost one of the ridges. The first ends are about uniformly spaced along the outermost one of the ridges.
    Type: Application
    Filed: March 5, 2011
    Publication date: September 6, 2012
    Applicant: Alcatel-Lucent USA, Incorporated
    Inventor: Christopher Doerr
  • Publication number: 20120170111
    Abstract: One aspect provides an optical device. The optical device includes a first and a second array of optical couplers, a plurality of waveguides and a plurality of pump couplers located over a surface of a substrate. The optical couplers of the first array are able to end-couple in a one-to-one manner to the optical cores of a first multi-core fiber having an end facing and adjacent to the first array and the surface. The optical couplers of the second array are able to end-couple in a one-to-one manner to optical cores having ends facing and adjacent to the second array. The plurality of optical waveguides connects in a one-to-one manner the optical couplers of the first array to the optical couplers of the second array. Each optical waveguide has a pump coupler connected thereto between the ends of the waveguide.
    Type: Application
    Filed: January 24, 2011
    Publication date: July 5, 2012
    Inventors: Christopher Doerr, Peter Winzer
  • Publication number: 20120170933
    Abstract: An optical device includes a substrate with first and second arrays of optical couplers located along a planar surface thereof. The optical couplers of the first array are laterally arranged along the surface to end-couple in a one-to-one manner to corresponding optical cores of a first multi-core fiber whose end is facing and adjacent to the first array. The optical couplers of the second array of optical couplers are laterally arranged along the surface to end-couple in a one-to-one manner to corresponding optical fiber cores of one or more optical fiber ends facing and adjacent to the second array. An optical switch network is optically connected to selectively couple some of the optical couplers of the first array to the optical couplers of the second array in a one-to-one manner.
    Type: Application
    Filed: January 24, 2011
    Publication date: July 5, 2012
    Inventors: Christopher Doerr, Peter Winzer
  • Publication number: 20120155805
    Abstract: An optical device includes a substrate and a plurality of three or more planar waveguides formed over the substrate. Each planar waveguide includes a corresponding grating coupler formed therein. The grating couplers are arranged in a non-collinear pattern over said substrate. The plurality of grating couplers is configured to optically couple to a corresponding plurality of fiber cores in a multi-core optical cable.
    Type: Application
    Filed: December 20, 2010
    Publication date: June 21, 2012
    Inventor: Christopher Doerr
  • Publication number: 20120155806
    Abstract: An optical device includes an array of optical grating couplers and a plurality of single-core fiber couplers located over a planar substrate. The optical grating couplers of the array are located to optically couple in a one-to-one manner to optical cores of a multi-core fiber or optical cable having an end located adjacent to the surface. Each single-core fiber coupler includes a planar optical waveguide connecting a corresponding one of the optical couplers of the array to an edge of the substrate.
    Type: Application
    Filed: January 24, 2011
    Publication date: June 21, 2012
    Inventors: Christopher Doerr, Peter Winzer
  • Publication number: 20110249938
    Abstract: An apparatus includes a crystalline inorganic semiconductor substrate. A planar optical waveguide core is located over the substrate such that a first length of the planar optical waveguide core is directly on the substrate. A regular array of optical scattering structures is located within a second length of the planar optical waveguide core. A cavity is located in the substrate between the regular array and the substrate.
    Type: Application
    Filed: April 7, 2010
    Publication date: October 13, 2011
    Applicant: Alcatel-Lucent USA, Incorporated
    Inventors: Long Chen, Liming Zhang, Christopher Doerr, Nicolas Dupuis
  • Patent number: 7903913
    Abstract: An optical apparatus including a 360-degree star coupler with derivative structure(s) and applications to optical imaging, optical communications and optical spectroscopy.
    Type: Grant
    Filed: August 1, 2008
    Date of Patent: March 8, 2011
    Assignee: Alcatel-Lucent USA Inc.
    Inventor: Christopher Doerr
  • Patent number: 7782520
    Abstract: Duobinary and NRZ modulation of an X-Gb/s optical signal is achieved with a lumped element InP Mach-Zehnder device configured to operate at X/k-Gb/s where k>1 and arranged in a push-pull configuration.
    Type: Grant
    Filed: December 28, 2006
    Date of Patent: August 24, 2010
    Assignee: Alcatel-Lucent USA Inc.
    Inventors: Andrew Adamiecki, Sethumadhavan Chandrasekhar, Christopher Doerr, David Nielson, Peter Winzer
  • Patent number: 7733562
    Abstract: A method of optically equalizing a multi-level (amplitude or phase) optical signal through the effect of an optical equalizer wherein the optical equalizer (OEQ) is placed at either a transmission end or a receiver end of the optical communications link and a tap delay characteristic of the OEQ need not be determined by symbol spacing, rather it may advantageously be adjusted to desirably compensate non-linear mapping performed in the modulation process or simultaneous operation on a plurality of wavelength division multiplexed (WDM) channels.
    Type: Grant
    Filed: June 29, 2007
    Date of Patent: June 8, 2010
    Assignee: Alcatel-Lucent USA Inc.
    Inventors: Christopher Doerr, Alan Gnauck, Gregory Raybon, Peter Winzer
  • Patent number: 7724991
    Abstract: A compact optical receiver exhibiting polarization-diversity and employing an arrayed-waveguide-grating (AWG).
    Type: Grant
    Filed: January 31, 2009
    Date of Patent: May 25, 2010
    Assignee: Alcatel-Lucent USA Inc.
    Inventor: Christopher Doerr
  • Patent number: 7711222
    Abstract: A colorless tunable optical dispersion compensator (TODC) comprising a silica arrayed-waveguide grating (AWG) directly coupled to a polymer thermo-optic lens. As a result of its inventive construction, the device exhibits low loss, large tuning range, low electrical consumption and is readily manufactured using standard processes. Additionally, the TODC is fully solid-state and scales to a large figure-of-merit (dispersion range times bandwidth squared).
    Type: Grant
    Filed: March 3, 2006
    Date of Patent: May 4, 2010
    Assignees: Alcatel-Lucent USA Inc., Gemfire Corporation
    Inventors: Robert Blum, Hindrik Bulthius, Christopher Doerr
  • Patent number: 7706648
    Abstract: A tunable optical dispersion compensator (TODC) having a silica arrayed-waveguide grating (AWG) directly coupled at its input to a Mach-Zehnder interferometer device and at its output to a polymer thermo-optic lens.
    Type: Grant
    Filed: March 24, 2007
    Date of Patent: April 27, 2010
    Assignee: Alcatel-Lucent USA Inc.
    Inventor: Christopher Doerr
  • Publication number: 20100027939
    Abstract: An optical apparatus including a 360-degree star coupler with derivative structure(s) and applications to optical imaging, optical communications and optical spectroscopy.
    Type: Application
    Filed: August 1, 2008
    Publication date: February 4, 2010
    Applicant: LUCENT TECHNOLOGIES INC.
    Inventor: Christopher DOERR
  • Publication number: 20090116789
    Abstract: A tunable optical dispersion compensator (TODC) having a silica arrayed-waveguide grating (AWG) directly coupled at its input to a Mach-Zehnder interferometer device and at its output to a polymer thermo-optic lens.
    Type: Application
    Filed: March 24, 2007
    Publication date: May 7, 2009
    Applicant: LUCENT TECHNOLOGIES INC.
    Inventor: Christopher DOERR
  • Publication number: 20090074426
    Abstract: A monolithic, Indium Phosphide (InP) differential phase-shift keying (DPSK) or differential quadrature phase shift keying (DQPSK) receiver that exhibits low polarization sensitivity.
    Type: Application
    Filed: September 14, 2007
    Publication date: March 19, 2009
    Applicant: LUCENT TECHNOLOGIES INC.
    Inventor: Christopher DOERR
  • Patent number: 7433549
    Abstract: A high-speed optical modulator constructed from a number of lower speed intensity modulators integrated onto a single optical chip.
    Type: Grant
    Filed: June 30, 2007
    Date of Patent: October 7, 2008
    Assignee: Lucent Technologies Inc.
    Inventors: Christopher Doerr, Peter Winzer