Patents by Inventor Bardia Pezeshki

Bardia Pezeshki 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).

  • Micromechanically aligned optical assembly
    Patent number: 9726836
    Abstract: An optical assembly includes a combination of laser sources emitting radiation, focused by a combination of lenses into optical waveguides. The optical waveguide and the laser source are permanently attached to a common carrier, while at least one of the lenses is attached to a holder that is an integral part of the carrier, but is free to move initially. Micromechanical techniques are used to adjust the position of the lens and holder, and then fix the holder it into place permanently using integrated heaters with solder.
    Type: Grant
    Filed: July 6, 2016
    Date of Patent: August 8, 2017
    Assignee: KAIAM CORP.
    Inventors: Bardia Pezeshki, John Heanue
  • Multiple wavelength light-source with tracking multiplexer
    Patent number: 9722706
    Abstract: A transmitter assembly incorporating multiple laser diodes that are wavelength multiplexed together using a planar lightwave circuit, and where the multiplexer's transmission spectrum depends on temperature at the same rate as the laser diodes. This allows a design for lower loss in the multiplexer and therefore is more power efficient.
    Type: Grant
    Filed: May 19, 2014
    Date of Patent: August 1, 2017
    Assignee: KAIAM CORP.
    Inventors: Alice Liu, Bardia Pezeshki, John Heanue, Henk Bulthuis
  • MEMS-based levers and their use for alignment of optical elements
    Patent number: 9690058
    Abstract: A MEMS based alignment technology based on mounting an optical component on a released micromechanical lever configuration that uses multiple flexures rather than a single spring. The optical component may be a lens. The use of multiple flexures may reduce coupling between lens rotation and lens translation, and reduce effects of lever handle warping on lens position. The device can be optimized for various geometries.
    Type: Grant
    Filed: November 17, 2014
    Date of Patent: June 27, 2017
    Assignee: KAIAM CORP.
    Inventors: Bardia Pezeshki, Michael Sherback, Dinh Ton
  • OPTICAL TRANSCEIVER WITH COMBINED TRANSMITTER AND RECEIVER ASSEMBLY
    Publication number: 20170168252
    Abstract: An optical transceiver assembly includes a circuit board and a PLC, both performing transmission and reception functions, in a common volume of a common housing, electro-optical conversion elements, for example lasers and/or photodetectors. Lasers may be on a further substrate on the circuit board.
    Type: Application
    Filed: December 9, 2016
    Publication date: June 15, 2017
    Inventors: Bardia Pezeshki, John Heanue
  • OPTICAL INTERCONNECT FOR SWITCH APPLICATIONS
    Publication number: 20170139145
    Abstract: A switch module includes a switch integrated circuit (IC), a silicon photonics chips, and an interface having removably coupled first side and second side. The first side includes a lens array optically coupled to a SiP chip and the second side includes a connector having a plurality of planar lightwave circuits (PLCs) optically coupled to another lens array.
    Type: Application
    Filed: October 20, 2016
    Publication date: May 18, 2017
    Inventors: John Heanue, Bardia Pezeshki, Charles Amsden, Lucas Soldano
  • OPTICAL INTERCONNECT FOR SWITCH APPLICATIONS
    Publication number: 20160381442
    Abstract: A switch module includes a switch integrated circuit (IC), a silicon photonics chips, and a planar lightwave circuits (PLCs).
    Type: Application
    Filed: June 24, 2016
    Publication date: December 29, 2016
    Inventors: John Heanue, Bardia Pezeshki, Charles Amsden, Lucas Soldano
  • MICROMECHANICALLY ALIGNED OPTICAL ASSEMBLY
    Publication number: 20160313518
    Abstract: An optical assembly includes a combination of laser sources emitting radiation, focused by a combination of lenses into optical waveguides. The optical waveguide and the laser source are permanently attached to a common carrier, while at least one of the lenses is attached to a holder that is an integral part of the carrier, but is free to move initially. Micromechanical techniques are used to adjust the position of the lens and holder, and then fix the holder it into place permanently using integrated heaters with solder.
    Type: Application
    Filed: July 6, 2016
    Publication date: October 27, 2016
    Inventors: Bardia Pezeshki, John Heanue
  • High data rate long reach transceiver using wavelength multiplexed architecture
    Patent number: 9425917
    Abstract: Optical telecommunication modules including transmitters and receivers and methods of using same. In some embodiments the transmitters include a chip having an array of lasers and a combiner for combining light from the lasers for transmission over an optical fiber. Preferably the lasers have widely spaced wavelengths. The chip may be semi-cooled in some embodiments. A dither signal may be provided to one laser for use by a receiver in tracking temperature of the laser for improved receiver performance. In some embodiments a plurality of EMLs are used instead of a greater number of plurality of DFBs for transmission.
    Type: Grant
    Filed: March 15, 2007
    Date of Patent: August 23, 2016
    Assignee: NeoPhotonics Corporation
    Inventor: Bardia Pezeshki
  • Micromechanically aligned optical assembly
    Patent number: 9405072
    Abstract: An optical assembly includes a combination of laser sources emitting radiation, focused by a combination of lenses into optical waveguides. The optical waveguide and the laser source are permanently attached to a common carrier, while at least one of the lenses is attached to a holder that is an integral part of the carrier, but is free to move initially. Micromechanical techniques are used to adjust the position of the lens and holder, and then fix the holder it into place permanently using integrated heaters with solder.
    Type: Grant
    Filed: June 30, 2014
    Date of Patent: August 2, 2016
    Assignee: Kaiam Corp.
    Inventors: Bardia Pezeshki, John Heanue
  • PLANAR LIGHTWAVE CIRCUIT ACTIVE CONNECTOR
    Publication number: 20160149662
    Abstract: An assembly of waveguide wavelength multiplexers and demultiplexers, together with continuous wave (CW) laser transmitters that interface to grating couplers on a silicon photonics chip, providing CW sources, multiplexed output and optionally multiplexed input, all using a single photonic lightwave circuit (PLC).
    Type: Application
    Filed: February 12, 2015
    Publication date: May 26, 2016
    Inventors: Lucas Soldano, Bardia Pezeshki, John Heanue
  • Micromechanically aligned optical assembly
    Patent number: 9335481
    Abstract: An optical assembly includes a combination of laser sources emitting radiation, focused by a combination of lenses into optical waveguides. The optical waveguide and the laser source are permanently attached to a common carrier, while at least one of the lenses is attached to a holder that is an integral part of the carrier, but is free to move initially. Micromechanical techniques are used to adjust the position of the lens and holder, and then fix the holder it into place permanently using integrated heaters with solder.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: May 10, 2016
    Assignee: Kaiam Corp.
    Inventors: Bardia Pezeshki, John Heanue
  • MICROMECHANICALLY ALIGNED OPTICAL ASSEMBLY
    Publication number: 20150331207
    Abstract: An optical assembly includes a combination of laser sources emitting radiation, focused by a combination of lenses into optical waveguides. The optical waveguide and the laser source are permanently attached to a common carrier, while at least one of the lenses is attached to a holder that is an integral part of the carrier, but is free to move initially. Micromechanical techniques are used to adjust the position of the lens and holder, and then fix the holder it into place permanently using integrated heaters with solder.
    Type: Application
    Filed: June 30, 2014
    Publication date: November 19, 2015
    Applicant: Kaiam Corp
    Inventors: Bardia Pezeshki, John Heanue
  • MEMS-BASED LEVERS AND THEIR USE FOR ALIGNMENT OF OPTICAL ELEMENTS
    Publication number: 20150078707
    Abstract: A MEMS based alignment technology based on mounting an optical component on a released micromechanical lever configuration that uses multiple flexures rather than a single spring. The optical component may be a lens. The use of multiple flexures may reduce coupling between lens rotation and lens translation, and reduce effects of lever handle warping on lens position. The device can be optimized for various geometries.
    Type: Application
    Filed: November 17, 2014
    Publication date: March 19, 2015
    Inventors: Bardia Pezeshki, Michael Sherback, Dinh Ton
  • Broad area laser pump combiner
    Patent number: 8971376
    Abstract: Multiple broad area lasers are coupled to a planar lightwave circuit, where the waveguides come together to form a single wide emitting aperture. A tapered lens is used at the output of the planar lightwave circuit to transform the highly asymmetric mode into a conventional round mode. This configuration allows much higher “brightness”, allowing 10 or more 100 um wide broad area lasers to be coupled into a single 100 um core multimode fiber. This is considerably more efficient than the standard method of combining a single 100 um wide broad area laser to a 100 um core multimode fiber.
    Type: Grant
    Filed: August 8, 2011
    Date of Patent: March 3, 2015
    Assignee: Kaiam Corp.
    Inventors: Bardia Pezeshki, John Heanue
  • MEMS-based levers and their use for alignment of optical elements
    Patent number: 8917963
    Abstract: A MEMS based alignment technology based on mounting an optical component on a released micromechanical lever configuration that uses multiple flexures rather than a single spring. The optical component may be a lens. The use of multiple flexures may reduce coupling between lens rotation and lens translation, and reduce effects of lever handle warping on lens position. The device can be optimized for various geometries.
    Type: Grant
    Filed: May 23, 2011
    Date of Patent: December 23, 2014
    Assignee: Kaiam Corp.
    Inventors: Bardia Pezeshki, Michael Sherback, Dinh Ton
  • Semiconductor laser device and circuit for and method of driving same
    Patent number: 8913638
    Abstract: A directly driven laser includes multiple contacts, with at least one of the contacts for injecting current into the laser such that the laser reaches at least a lasing threshold and at least one of the contacts for providing a data signal to the laser. In some embodiments a differential data signal is effectively provided to a front and a rear section of the laser, while lasing threshold current is provided to a central portion of the laser.
    Type: Grant
    Filed: August 23, 2012
    Date of Patent: December 16, 2014
    Assignee: Kaiam Corp.
    Inventors: Gideon Yoffe, Bardia Pezeshki, Thomas P. Schrans
  • External cavity widely tunable laser using a silicon resonator and micromechanically adjustable coupling
    Patent number: 8908723
    Abstract: A widely tunable laser is described where a compound semiconductor gain chip is coupled to a waveguide filter fabricated on silicon. The filter has two resonators with different free-spectral-ranges, such that Vernier tuning between the filters can be used to provide a single wavelength of light feedback into the gain chip, where the wavelength is adjustable over a wide range. The coupling between the gain chip and the filter is realized through a microlens whose position can be adjusted using micromechanics and locked in place.
    Type: Grant
    Filed: January 27, 2012
    Date of Patent: December 9, 2014
    Inventors: Gideon Yoffe, John Heanue, Bardia Pezeshki
  • High power multi-wavelength laser source
    Patent number: 8902944
    Abstract: An optical assembly comprises a combination of semiconductor optical gain elements, microlenses, and a wavelength-selective planar lightwave circuit (PLC) that routes light of different wavelengths from a different inputs to a single output. The microlenses couple light from the semiconductor optical gain elements into the PLC. The positions of the microlenses can be adjusted using micromechanical holders that are part of their carriers, and are free to move initially, and fixed in place after optimization of the optical coupling. In operation, the gain elements are activated simultaneously, with one wavelength of light lasing within each gain element. All output wavelengths of light exit from a single output of the PLC in a single spatial mode.
    Type: Grant
    Filed: October 8, 2010
    Date of Patent: December 2, 2014
    Assignee: Kaiam Corp.
    Inventor: Bardia Pezeshki
  • MICROMECHANICALLY ALIGNED OPTICAL ASSEMBLY
    Publication number: 20140308007
    Abstract: An optical assembly includes a combination of laser sources emitting radiation, focused by a combination of lenses into optical waveguides. The optical waveguide and the laser source are permanently attached to a common carrier, while at least one of the lenses is attached to a holder that is an integral part of the carrier, but is free to move initially. Micromechanical techniques are used to adjust the position of the lens and holder, and then fix the holder it into place permanently using integrated heaters with solder.
    Type: Application
    Filed: June 27, 2014
    Publication date: October 16, 2014
    Inventors: Bardia Pezeshki, John Heanue
  • Micromechanically aligned optical assembly
    Patent number: 8768120
    Abstract: An optical assembly includes a combination of laser sources emitting radiation, focused by a combination of lenses into optical waveguides. The optical waveguide and the laser source are permanently attached to a common carrier, while at least one of the lenses is attached to a holder that is an integral part of the carrier, but is free to move initially. Micromechanical techniques are used to adjust the position of the lens and holder, and then fix the holder it into place permanently using integrated heaters with solder.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: July 1, 2014
    Assignee: Kaiam Corp.
    Inventors: Bardia Pezeshki, John Heanue