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).

  • Robust modulator circuits using lateral doping junctions
    Patent number: 9372381
    Abstract: Disclosed herein are methods, structures, and devices that compensates for modulator loss and modulation inefficiencies introduced by mask misalignments in opposite oriented pn type junction modulators. More specifically, Mach-Zehnder type optical modulators are disclosed wherein both arms in the MZI modulator are arranged in a push-pull configuration and configured to experience pn type junctions of two orientations wherein both arms further configured to experience the same length of waveguide with a pn type junction of each orientation.
    Type: Grant
    Filed: October 18, 2013
    Date of Patent: June 21, 2016
    Assignee: Acacia Communications, Inc.
    Inventors: Diedrik Vermeulen, Long Chen, Christopher Doerr
  • OPTOELECTRONIC BALL GRID ARRAY PACKAGE WITH FIBER
    Publication number: 20160124164
    Abstract: A photonic integrated circuit may be coupled to an optical fiber and packaged. The optical fiber may be supported by a fiber holder during a solder reflow process performed to mount the packaged photonic integrated circuit to a circuit board or other substrate. The optical fiber may be decoupled from the fiber holder, and the fiber holder removed, after completion of the solder reflow process.
    Type: Application
    Filed: October 29, 2015
    Publication date: May 5, 2016
    Applicant: Acacia Communications, Inc.
    Inventor: Christopher Doerr
  • THREE PORT TRANSCEIVER
    Publication number: 20160041336
    Abstract: An optical coherent transceiver comprising a polarization and phase-diversity coherent receiver and a polarization and phase-diversity modulator on the same substrate interfaced by three grating couplers, on grating coupler coupling in a signal, one grating coupler coupling in a laser signal, and a third grating coupler coupling out a modulated signal.
    Type: Application
    Filed: October 23, 2015
    Publication date: February 11, 2016
    Applicant: Acacia Communications, Inc.
    Inventors: Christopher Doerr, Benny Mikkelsen, Eric Swanson
  • INTEGRATED HIGH-POWER TUNABLE LASER WITH ADJUSTABLE OUTPUTS
    Publication number: 20160013609
    Abstract: A tunable laser that includes an array of parallel optical amplifiers is described. The laser may also include an intracavity N×M coupler that couples power between a cavity mirror and the array of parallel optical amplifiers. Phase adjusters in optical paths between the N×M coupler and the optical amplifiers can be used to adjust an amount of power output from M?1 ports of the N×M coupler. A tunable wavelength filter is incorporated in the laser cavity to select a lasing wavelength.
    Type: Application
    Filed: July 10, 2015
    Publication date: January 14, 2016
    Applicant: Acacia Communications, Inc.
    Inventor: Christopher Doerr
  • OPTICAL COMPENSATION USING A SPACE DIVISION MULTIPLEXING ELECTRO-OPTIC RECEIVER
    Publication number: 20160013880
    Abstract: Disclosed herein are methods, structures, and devices for optical communications systems operating through turbulent media. More specifically, a spatial division multiplexing photonic integrated circuit is used in conjunction with digital signal processing systems to mitigate the effects of the turbulent media.
    Type: Application
    Filed: September 21, 2015
    Publication date: January 14, 2016
    Applicant: Acacia Communications, Inc.
    Inventors: Eric Swanson, Christopher Doerr, Graeme Pendock
  • MULTICHANNEL COHERENT TRANSCEIVER AND RELATED APPARATUS AND METHODS
    Publication number: 20160013866
    Abstract: A multi-channel optical transceiver is disclosed. The optical transceiver has a multi-package structure. A laser array is disposed in one package. An application specific integrated circuit (ASIC) and photonic integrated circuit (PIC) are disposed in another package. An optical fiber array may couple the first package and second package together.
    Type: Application
    Filed: July 10, 2015
    Publication date: January 14, 2016
    Applicant: Acacia Communications, Inc.
    Inventor: Christopher Doerr
  • MONOLITHIC SILICON COHERENT TRANSCEIVER WITH INTEGRATED LASER AND GAIN ELEMENTS
    Publication number: 20150358083
    Abstract: Disclosed are structures and methods for a monolithic silicon (Si) coherent transceiver with integrated laser and gain elements wherein an InP chip is bonded to the Si chip in a recess formed in that Si chip.
    Type: Application
    Filed: June 6, 2014
    Publication date: December 10, 2015
    Inventors: Christopher DOERR, Long CHEN
  • Three port transceiver
    Patent number: 9195079
    Abstract: An optical coherent transceiver comprising a polarization and phase-diversity coherent receiver and a polarization and phase-diversity modulator on the same substrate interfaced by three grating couplers, on grating coupler coupling in a signal, one grating coupler coupling in a laser signal, and a third grating coupler coupling out a modulated signal.
    Type: Grant
    Filed: January 2, 2013
    Date of Patent: November 24, 2015
    Assignee: Acacia Communications, Inc.
    Inventors: Christopher Doerr, Benny Mikkelsen, Eric Swanson
  • INTEGRATED POLARIZATION FILTER AND TAP COUPLER
    Publication number: 20150301280
    Abstract: Disclosed herein are methods, structures, apparatus and devices to integrate polarization filters and power tap couplers on planar photonic circuits that advantageously provide a lower insertion loss to an optical signal and improved optical bandwidth as compared with contemporary designs wherein these two functions are implemented separately.
    Type: Application
    Filed: December 11, 2013
    Publication date: October 22, 2015
    Inventors: Long CHEN, Christopher DOERR
  • Radial optical coupler
    Patent number: 9162404
    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: Grant
    Filed: March 5, 2011
    Date of Patent: October 20, 2015
    Assignee: Alcatel Lucent
    Inventor: Christopher Doerr
  • Optical compensation using a space division multiplexing electro-optic receiver
    Patent number: 9154253
    Abstract: Disclosed herein are methods, structures, and devices for optical communications systems operating through turbulent media. More specifically, a spatial division multiplexing photonic integrated circuit is used in conjunction with digital signal processing systems to mitigate the effects of the turbulent media.
    Type: Grant
    Filed: November 4, 2013
    Date of Patent: October 6, 2015
    Assignee: Acacia Communications, Inc.
    Inventors: Eric Swanson, Christopher Doerr, Graeme Pendock
  • Monolithic integration of dielectric waveguides and germanium-based devices
    Patent number: 9146349
    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: Grant
    Filed: March 31, 2011
    Date of Patent: September 29, 2015
    Assignee: Alcatel Lucent
    Inventors: Long Chen, Christopher Doerr, Young-Kai Chen
  • Spatial division multiplexing optical mode converter
    Patent number: 9140854
    Abstract: Embodiments provide an optical device that includes a star coupler, a polarization bam splitter (PBS) and a polarization rotator. The star coupler includes a port at a first end face. The polarization beam splitter is optically coupled via a first side to the star coupler port, and is further optically coupled via a second side to a first port of an optical coupler. The polarization rotator is optically coupled between the polarization beam splitter and a second port of the optical coupler.
    Type: Grant
    Filed: September 21, 2012
    Date of Patent: September 22, 2015
    Assignee: Alcatel Lucent
    Inventor: Christopher Doerr
  • Optical amplifier for multi-core optical fiber
    Patent number: 9103987
    Abstract: An optical device comprising a first optical coupler located over a surface of a substrate such that the optical coupler is able to end-couple to an optical core of a first optical fiber having an end facing and adjacent to the first optical coupler and the surface. The optical device further comprises a second optical coupler located over the surface such that the second optical coupler is able to end-couple to an optical core having an end facing and adjacent to the second optical coupler. The optical device also comprises a pump coupler being configured to couple pump light to an optical path that connects the first optical coupler and the second optical coupler.
    Type: Grant
    Filed: August 15, 2013
    Date of Patent: August 11, 2015
    Assignee: Alcatel Lucent
    Inventors: Christopher Doerr, Peter Winzer
  • SILICON DEPLETION MODULATORS WITH ENHANCED SLAB DOPING
    Publication number: 20150212345
    Abstract: Disclosed herein are methods, structures, and devices for a silicon carrier-depletion based modulator with enhanced doping in at least part of slab regions between waveguide core and contact areas. Compared to prior designs, this modulator exhibits lower optical absorption loss and better modulation bandwidth without sacrificing the modulation efficiency when operating at comparable bandwidth settings.
    Type: Application
    Filed: December 11, 2013
    Publication date: July 30, 2015
    Inventors: Long CHEN, Christopher DOERR
  • WAFER-SCALE TESTING OF PHOTONIC INTEGRATED CIRCUITS USING HORIZONTAL SPOT-SIZE CONVERTERS
    Publication number: 20150214122
    Abstract: Disclosed herein are methods, structures, and devices for wafer scale testing of photonic integrated circuits.
    Type: Application
    Filed: December 11, 2013
    Publication date: July 30, 2015
    Inventors: Diedrik VERMEULEN, Long CHEN, Christopher DOERR
  • Tunable laser using III-V gain materials
    Patent number: 9020001
    Abstract: Disclosed herein are techniques, methods, structures and apparatus that provide a laser monolithically integrated in a silicon photonic integrated circuit (PIC) that is suitable for high-performance coherent fiber-optic telecommunications and other applications. Among the features of a laser according to the present disclosure, and in particular a hybrid InGaAsP/Si laser, is an integrated Si isolator to protect the laser from back reflections; optical, rather than electrical pumping; and coupling the optical pump using an InGaAsP grating coupler that acts simultaneously as a WDM coupler and laser mirror.
    Type: Grant
    Filed: April 26, 2013
    Date of Patent: April 28, 2015
    Assignee: Acacia Communications, Inc.
    Inventors: Christopher Doerr, Eric Swanson
  • SLAB-MODE AND POLARIZATION CLEAN-UP IN SILICON PHOTONICS
    Publication number: 20150063769
    Abstract: Disclosed are structures and methods directed to waveguide structures exhibiting improved device performance including improved attenuation of scattered light and/or transverse magnetic modes. In an illustrative embodiment according to the present disclosure, a rib waveguide structure including a rib overlying a slab waveguide (or superimposed thereon) is constructed wherein the slab waveguide is heavily doped at a distance from the rib which has a very low overlap with rib guided modes. Advantageously, such doping may be of the P-type or of the N-type, and dopants could be any of a number of known ones including—but not limited to—boron, phosphorous, etc.—or others that increase optical propagation loss. As may be appreciated, the doped regions advantageously absorb scattered light which substantially improves the structure's performance.
    Type: Application
    Filed: September 2, 2014
    Publication date: March 5, 2015
    Inventors: Christopher DOERR, Long CHEN
  • DISTRIBUTED CMOS DRIVER WITH ENHANCED DRIVE VOLTAGE FOR SILICON OPTICAL PUSH-PULL MACH-ZEHNDER MODULATORS
    Publication number: 20150062689
    Abstract: Disclosed are structures and methods for CMOS drivers that drive silicon optical push-pull Mach-Zehnder modulators (MZMs) with twice the drive voltage per interferometer arm as with prior art designs.
    Type: Application
    Filed: September 2, 2014
    Publication date: March 5, 2015
    Inventor: Christopher DOERR
  • FIBER ASSEMBLY FOR FACET OPTICAL COUPLING
    Publication number: 20150063747
    Abstract: Disclosed are structures and methods for facet optical coupling of optical fibers to photonic integrated circuits.
    Type: Application
    Filed: September 2, 2014
    Publication date: March 5, 2015
    Inventors: Long CHEN, Christopher DOERR, Diedrik VERMEULEN