Patents Assigned to ACACIA COMMUNICATIONS INC.
  • Wavelength locker
    Patent number: 10833472
    Abstract: An apparatus and method for calculating the frequency of the light.
    Type: Grant
    Filed: February 26, 2019
    Date of Patent: November 10, 2020
    Assignee: Acacia Communications, Inc.
    Inventors: Long Chen, Christopher Doerr
  • Modulation systems and methods in optical transceivers
    Patent number: 10833911
    Abstract: Quadrature amplitude modulation (QAM) techniques for use in optical systems are described. An optical transceiver may include a modulator configured to modulate data according to a scaled set-partitioning QAM (SP-QAM) scheme. The modulator may be configured to receive a plurality of bits, associate the plurality of bits with a plurality of symbols according to the scaled (SP-QAM) scheme; and transmit the plurality of symbols over an optical channel. A demodulator in an optical receiver may receive the plurality of symbols transmitted over the optical channel and associate the received symbols with a plurality of bits according to the scaled (SP-QAM) scheme; and provide the plurality of bits to a forward error correction decoder.
    Type: Grant
    Filed: August 6, 2019
    Date of Patent: November 10, 2020
    Assignee: Acacia Communications, Inc.
    Inventors: Hongbin Zhang, Mehmet Aydinlik
  • Traveling wave modulator
    Patent number: 10831044
    Abstract: In an embodiment, a method and apparatus for increasing bandwidth of an optical modulator by applying a first voltage applied to a beginning of a resistive line and applying a second voltage applied to an end of the resistive line; wherein the first voltage is less than the second voltage.
    Type: Grant
    Filed: October 2, 2019
    Date of Patent: November 10, 2020
    Assignee: Acacia Communications, Inc.
    Inventor: Christopher Doerr
  • Optical grooming interconnection network
    Patent number: 10819438
    Abstract: A system, apparatus, and method for an optical grooming network; wherein a set of switches form an optical grooming interconnection system where each switch is communicatively coupled to each other switch; a set of clients; where each switch of the set of switches is communicatively coupled to a client of the clients; wherein each client receiver is enabled to communicate through the set of switches to any client or modem; and a set of coherent optical modems; wherein each coherent optical modem is communicatively coupled to a switch of the set of switches; wherein each client of the clients is able to communicate through the set of switches to every coherent optical modem of the set of coherent optical modems, and each coherent optical modem in the set of coherent optical modems can communicate to every coherent optical modem of the set of coherent optical modems.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: October 27, 2020
    Assignee: Acacia Communications, Inc.
    Inventors: Jon Stahl, James Duda
  • Three port transceiver
    Patent number: 10816723
    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: July 18, 2016
    Date of Patent: October 27, 2020
    Assignee: Acacia Communications, Inc.
    Inventors: Christopher Doerr, Benny Mikkelsen, Eric Swanson
  • Forward error correction systems and methods
    Patent number: 10798756
    Abstract: Techniques for performing forward error correction of data to be transmitted over an optical communications channel. The techniques include: receiving data bits; organizing the data bits into an arrangement having a plurality of blocks organized into rows and columns and into a plurality of strands including a first strand of blocks that includes a back portion comprising a first row of the plurality of blocks, and a front portion comprising blocks from at least two different columns in at least two different rows other than the first row of blocks; and encoding at least some of the data bits in the arrangement using a first error correcting code at least in part by generating first parity bits by applying the first error correcting code to first data bits in the front portion of the first strands and second data bits in the back portion of the first strand.
    Type: Grant
    Filed: August 23, 2019
    Date of Patent: October 6, 2020
    Assignee: Acacia Communications, Inc.
    Inventor: Pierre Humblet
  • ER-doped waveguide integration in silicon photonics
    Patent number: 10797462
    Abstract: Aspects of the present application are related to an Er-doped waveguide amplifier (EDWA) structure integrated in an uncooled silicon photonic transceiver and methods for fabricating the same. In some embodiments, the structure comprises three layers of waveguides: silicon, silicon nitride and Er-doped dielectric. The three layers of waveguides are integrated with an uncooled 980-nm pump laser. In some embodiments, the Er-doped dielectric waveguides are fully etched.
    Type: Grant
    Filed: June 28, 2017
    Date of Patent: October 6, 2020
    Assignee: Acacia Communications, Inc.
    Inventors: Christopher Doerr, Long Chen, Mohamadreza Banaee, Xingyu Zhang
  • Deinterleaver
    Patent number: 10784897
    Abstract: A method, apparatus, and system for a deinterleaver.
    Type: Grant
    Filed: June 20, 2019
    Date of Patent: September 22, 2020
    Assignee: Acacia Communications, Inc.
    Inventor: Pierre Humblet
  • Carrier sweep-out in a tunable laser
    Patent number: 10714894
    Abstract: In a first embodiment, an external cavity tunable laser, comprising a silicon photonics circuit comprising one or more resonators having one or more p-i-n junctions; wherein a voltage is applied to one or more of the p-i-n junctions. In a second embodiment, a method of operating an external cavity tunable laser, comprising sweeping out free-carriers from a resonator of the tunable laser by applying a voltage to a p-i-n junction of a waveguide of the resonator.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: July 14, 2020
    Assignee: Acacia Communications, Inc.
    Inventors: Christopher Doerr, Li Chen, Long Chen
  • FLEXIBLE BAUD RATE
    Publication number: 20200204265
    Abstract: A method, system, and apparatus enabled to selectively choose a baud rate for communication of optical data using a modem enabled to operate with an optical signal modulated at plurality of finely tuned baud rates.
    Type: Application
    Filed: August 19, 2019
    Publication date: June 25, 2020
    Applicant: Acacia Communications, Inc.
    Inventor: Jonas Geyer
  • SIDE CHANNEL COMMUNICATION FOR AN OPTICAL COHERENT TRANSCEIVER
    Publication number: 20200204262
    Abstract: A method, system and apparatus for optimizing parameters between two optical coherent transceivers connected via an optical link, including determining performance of a second optical receiver; wherein the second optical transceiver uses a set of parameters; and inputting information into a side channel communication between a first optical transceiver and the second optical transceiver to update the set of parameters for the second transceiver.
    Type: Application
    Filed: October 31, 2019
    Publication date: June 25, 2020
    Applicant: Acacia Communications, Inc.
    Inventors: Jonas Geyer, Timo Pfau
  • Conductive connector
    Patent number: 10673161
    Abstract: A system and apparatus for increasing connectivity of a circuit board comprising a connector, wherein the connector has a horizontal body and a hollow cylindrical portion extruding vertically from the body; wherein the cylindrical portion is made up of a set of pieces; wherein at least a piece of the set of pieces is arranged to expand horizontally upon insertion of a phalanx head in a vertical manner. A method to increase current connectivity comprising screwing a fastener into threads of a connector through a hollow cylindrical portion of the connector; wherein the hollow cylindrical portion of the connector is made up of a set of pieces; wherein the screwing causes a phalanx head to contact the cylindrical portion expanding at least one piece of the set of pieces in a horizontal manner in relation to the fastener.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: June 2, 2020
    Assignee: Acacia Communications, Inc.
    Inventor: David Mullert
  • Encoding a first modulation type with a first spectral efficiency into a second modulation type capable of having a second spectral efficiency
    Patent number: 10637578
    Abstract: In a first embodiment, method and apparatus for encoding a first spectral efficiency into a second spectral efficiency; wherein the second spectral efficiency has a higher order than the first spectral efficiency. In a second embodiment, a method and apparatus for achieving at least two spectral efficiencies using a single type of modulation.
    Type: Grant
    Filed: August 13, 2018
    Date of Patent: April 28, 2020
    Assignee: Acacia Communications, Inc.
    Inventors: Mehmet Aydinlik, Jonas Geyer, Christian Rasmussen
  • Silicon photonics multicarrier optical transceiver
    Patent number: 10623102
    Abstract: Disclosed herein are techniques, methods, structures and apparatus that provide a silicon photonics multicarrier optical transceiver wherein both the transmitter and receiver are integrated on a single silicon chip and which generates a plurality of carriers through the effect of an on-chip modulator, amplifies the optical power of the carriers through the effect of an off-chip amplifier, and generates M orthogonal sets of carriers through the effect of an on-chip basis former.
    Type: Grant
    Filed: July 12, 2019
    Date of Patent: April 14, 2020
    Assignee: Acacia Communications, Inc.
    Inventor: Christopher Doerr
  • Suspended cantilever waveguide
    Patent number: 10571633
    Abstract: Cantilevered waveguides suspended above an air cavity in an underlying substrate are described. The waveguide is formed by patterning a waveguide layer in some embodiments, and the air cavity is formed by etching the substrate beneath the waveguide. The topside of the air cavity may be sealed by filling the openings used to etch the cavity with a sealant, such as optical epoxy. In some embodiments, the waveguide is a facet coupler, positioned at a chip facet.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: February 25, 2020
    Assignee: Acacia Communications, Inc.
    Inventors: Long Chen, Christopher Doerr, Li Chen
  • Geometrically shaping QAM modulation
    Patent number: 10567209
    Abstract: A method, system, and apparatus for encoding a data for transmission across a communication link, the comprising encoding the data into a constellation; wherein the constellation is of a power 2n; wherein n is an odd number; wherein encoding the constellation creates outer constellation points forming a square at an edge of the constellation.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: February 18, 2020
    Assignee: Acacia Communications, Inc.
    Inventors: Mehmet Aydinlik, Timo Pfau, Christian Rasmussen
  • DEINTERLEAVER
    Publication number: 20200052722
    Abstract: A method, apparatus, and system for a deinterleaver.
    Type: Application
    Filed: June 20, 2019
    Publication date: February 13, 2020
    Applicant: Acacia Communications, Inc.
    Inventor: Pierre Humblet
  • SYSTEM, METHOD, AND APPARATUS FOR INTERLEAVING DATA
    Publication number: 20200052821
    Abstract: A method, system, and apparatus for interleaving data including creating a buffer, writing input data, and reading output data out of the buffer.
    Type: Application
    Filed: September 19, 2019
    Publication date: February 13, 2020
    Applicant: Acacia Communications, Inc.
    Inventor: Pierre Humblet
  • Shorted p-n junction
    Patent number: 10554014
    Abstract: A method and apparatus for removing free carriers from a waveguide using a p type semiconductor and an n type semiconductor connected by a short.
    Type: Grant
    Filed: December 29, 2017
    Date of Patent: February 4, 2020
    Assignee: Acacia Communications, Inc.
    Inventors: Christopher Doerr, Li Chen, Long Chen
  • Monolithic silicon coherent transceiver with integrated laser and gain elements
    Patent number: 10536219
    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: Grant
    Filed: March 8, 2019
    Date of Patent: January 14, 2020
    Assignee: Acacia Communications, Inc.
    Inventors: Christopher Doerr, Long Chen