Patents by Inventor Charles H. Joyner

Charles H. Joyner 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: 10133141
    Abstract: Consistent with the present disclosure, both arms of an MZ interferometer are “double-folded” and are bent in at least two locations to define first and second acute inner angles. Accordingly, the arms of the MZ interferometer may have substantially the same length, and, further, the MZ interferometer has a more compact geometry. In one example, the arms parallel each other and have a serpentine shape, and, in a further embodiment, the arms parallel one another and have a Z-shape. Accordingly, since the temperature of a PIC upon which the MZ interferometer is provided does not vary significantly over such short distances, the temperatures of both arms is substantially the same.
    Type: Grant
    Filed: December 30, 2011
    Date of Patent: November 20, 2018
    Assignee: Infinera Corporation
    Inventors: Peter W. Evans, Scott Corzine, Mehrdad Ziari, Pavel V. Studenkov, Masaki Kato, Charles H. Joyner
  • Patent number: 10012797
    Abstract: A semiconductor monolithic transmitter photonic integrated circuit (TxPIC) comprises two different situations, either at least one signal channel in the PIC having a modulated source with the channel also extended to include at least one additional element or a plurality of modulated sources comprising N signal channels in the PIC of different transmission wavelengths, where N is equal to or greater than two (2), which may also approximate emission wavelengths along a standardized wavelength grid. In these two different situations, a common active region for such modulated sources and additional channel elements is identified as an extended identical active layer (EIAL), as it extends from a single modulated source to such additional channel elements in the same channel and/or extends to additional modulated sources in separate channels where the number of such channels is N equal to two or greater.
    Type: Grant
    Filed: January 27, 2005
    Date of Patent: July 3, 2018
    Assignee: Infinera Corporation
    Inventors: Radhakrishnan L. Nagarajan, Fred A. Kish, Jr., Masaki Kato, Charles H. Joyner, David F. Welch, Randal A. Salvatore, Richard P. Schneider, Mehrdad Ziari, Damien Jean Henri Lambert, Sheila K. Hurtt, Andrew G. Dentai, Atul Mathur, Vincent G. Dominic
  • Patent number: 9971090
    Abstract: A laser source or a plurality of laser sources in a photonic integrated circuit (PIC) are provided with an electrical contact that is either segmented or is connected to a series of vernier resistor segments for supply of current to operate the laser source. In either case, at least one segment of the laser contact or at least one vernier resistor segment can be trimmed in order to vary the amount of current supplied to the laser source resulting in a change to its current density and, thus, a change in its operational wavelength while maintaining the current supplied to the laser source constant.
    Type: Grant
    Filed: August 11, 2004
    Date of Patent: May 15, 2018
    Assignee: Infinera Corporation
    Inventors: Fred A. Kish, Jr., Charles H. Joyner, David F. Welch
  • Patent number: 9372306
    Abstract: A method provides acceptable performance from a semiconductor transmitter photonic integrated circuit (TxPIC) that contains a plurality of modulated sources each comprising a laser source and an external modulator where each laser source provides a different emission wavelength and each modulated source forms a separate signal channel, comprising the steps of providing at least some of the signal channels with an extended identical active layer (EIAL) so that the modulated sources each have an identical active region wavelength and detuning the laser emission wavelength in each laser source within the EIAL from the laser active region wavelength.
    Type: Grant
    Filed: January 27, 2005
    Date of Patent: June 21, 2016
    Assignee: Infinera Corporation
    Inventors: Radhakrishnan L. Nagarajan, Fred A. Kish, Jr., Masaki Kato, Charles H. Joyner, David F. Welch, Randal A. Salvatore, Richard P. Schneider, Mehrdad Ziari, Damien Jean Henri Lambert, Sheila K. Hurtt, Andrew G. Dentai, Atul Mathur, Vincent G. Dominic
  • Patent number: 8644650
    Abstract: Consistent with the present disclosure, MZ drive signal electrodes may be provided relatively close to and parallel to one another, such that the underlying waveguide arms may also be provided close to and parallel to one another. As a result, common mode performance of an MZ modulator may be obtained. In one example, an electrode wiring configuration consistent with the present disclosure may permit a waveguide arm separation of 40 microns or less.
    Type: Grant
    Filed: December 30, 2011
    Date of Patent: February 4, 2014
    Assignee: Infinera Corporation
    Inventors: Peter W. Evans, Scott Corzine, Mehrdad Ziari, Charles H. Joyner
  • Patent number: 8634718
    Abstract: The present invention provides a system, apparatus and method to maintain the polarization state of an optical signal propagating within a photonic integrated circuit, or from a first photonic integrated circuit to a second photonic integrated circuit. According to various embodiments of the invention, an optical circuit is provided which includes an optical coupler configured to accept a first optical signal on a first input and a second optical signal on a second input, the second optical signal having a polarization state. The optical coupler may combine the first and second optical signals into an optical output signal. A principle axis of a first end of an optical fiber is may be configured to align with the polarization state of the second optical signal, such that a polarization maintaining connection is established. The polarization state may be a TM polarization state, a TE polarization state, or another polarization state.
    Type: Grant
    Filed: May 28, 2010
    Date of Patent: January 21, 2014
    Assignee: Infinera Corporation
    Inventors: Peter W. Evans, Pavel V. Studenkov, Matthew Fisher, Charles H. Joyner
  • Patent number: 8565610
    Abstract: Embodiments of the invention are described in which correlated virtual data streams are managed within an optical network connection. In certain embodiments of the invention, a client signal is allocated across a plurality of transport wavelength channels according to various transposition methods. The assignment of portions of the client signal to corresponding wavelengths may depend on various factors including channel utilization within the transport network and skew characteristics between particular wavelengths.
    Type: Grant
    Filed: June 18, 2008
    Date of Patent: October 22, 2013
    Assignee: Infinera Corporation
    Inventors: Edward Sprague, Charles H. Joyner
  • Patent number: 8548333
    Abstract: The present invention provides for a transceiver comprising a transmitter portion and a receiver portion. The transmitter portion includes a laser, the laser providing an optical signal having one of a plurality of wavelengths. The optical signal from the laser is modulated to create a first wavelength-division multiplexed signal at an output of the transceiver. The optical signal from the laser is also used by a demultiplexer to demultiplexer a second wavelength-division multiplexed signal at an input of the transceiver. The use of the optical signal from the laser in both modulation and demodulation of wavelength-division multiplexed signals results in a transceiver having fewer discrete components resulting in a compact design and reduced costs.
    Type: Grant
    Filed: April 2, 2010
    Date of Patent: October 1, 2013
    Assignee: Infinera Corporation
    Inventors: Radhakrishnan L. Nagarajan, Masaki Kato, Fred A. Kish, Jr., David F. Welch, Charles H. Joyner
  • Patent number: 8542958
    Abstract: According to this disclosure, embodiments of the present invention include photonic integrated circuits having active and passive geometric regions geometrically arranged to provide for more compact integrated photonic integrated circuits which, in turn, leads to higher chip yields and lower fabrication costs.
    Type: Grant
    Filed: November 2, 2009
    Date of Patent: September 24, 2013
    Assignee: Infinera Corporation
    Inventors: Charles H. Joyner, Peter W. Evans, Masaki Kato
  • Publication number: 20130170783
    Abstract: Consistent with the present disclosure, MZ drive signal electrodes may be provided relatively close to and parallel to one another, such that the underlying waveguide arms may also be provided close to and parallel to one another. As a result, common mode performance of an MZ modulator may be obtained. In one example, an electrode wiring configuration consistent with the present disclosure may permit a waveguide arm separation of 40 microns or less.
    Type: Application
    Filed: December 30, 2011
    Publication date: July 4, 2013
    Inventors: Peter W. Evans, Scott Corzine, Mehrdad Ziari, Charles H. Joyner
  • Publication number: 20130170782
    Abstract: Consistent with the present disclosure, both arms of an MZ interferometer are “double-folded” and are bent in at least two locations to define first and second acute inner angles. Accordingly, the arms of the MZ interferometer may have substantially the same length, and, further, the MZ interferometer has a more compact geometry. In one example, the arms parallel each other and have a serpentine shape, and, in a further embodiment, the arms parallel one another and have a Z-shape. Accordingly, since the temperature of a PIC upon which the MZ interferometer is provided does not vary significantly over such short distances, the temperatures of both arms is substantially the same.
    Type: Application
    Filed: December 30, 2011
    Publication date: July 4, 2013
    Inventors: Peter W. Evans, Scott Corzine, Mehrdad Ziari, Pavel V. Studenkov, Masaki Kato, Charles H. Joyner
  • Patent number: 8373996
    Abstract: Consistent with an aspect of the present disclosure, a package is provided that has a carrier and first and second substrates provided on the carrier. Conductive traces are provided on the first substrate (upper traces) and below it (lower traces) to provide two levels of electrical connectivity to a photonic integrated circuit (PIC) provided on the second substrate. As a result, an increased number of connections can be made to the PIC in a relatively small package, while maintaining adequate spacing and line widths for each trace. In addition, the lower traces are connected to bonding pads on the surface of the first substrate and are thus provided in the same plane as the upper traces. Testing of and access to both upper and lower traces is thus simplified.
    Type: Grant
    Filed: July 7, 2009
    Date of Patent: February 12, 2013
    Assignee: Infinera Corporation
    Inventors: Donald J. Pavinski, Jr., August Spannagel, Charles H. Joyner, Peter W. Evans, Matthew Fisher, Mark J. Missey
  • Patent number: 8300994
    Abstract: A photonic integrated circuit (PIC) chip comprising an array of modulated sources, each providing a modulated signal output at a channel wavelength different from the channel wavelength of other modulated sources and a wavelength selective combiner having an input optically coupled to received all the signal outputs from the modulated sources and provide a combined output signal on an output waveguide from the chip. The modulated sources, combiner and output waveguide are all integrated on the same chip.
    Type: Grant
    Filed: February 7, 2011
    Date of Patent: October 30, 2012
    Assignee: Infinera Corporation
    Inventors: David F. Welch, Vincent G. Dominic, Fred A. Kish, Jr., Mark J. Missey, Radhakrishnan L. Nagarajan, Atul Mathur, Frank H. Peters, Robert B. Taylor, Matthew L. Mitchell, Alan C. Nilsson, Stephen G. Grubb, Richard P. Schneider, Charles H. Joyner, Ting-Kuang Chiang, Marco E. Sosa
  • Patent number: 8280255
    Abstract: The present invention provides a system, apparatus and method to provide for amplification at various points along one or more optical paths of a photonic integrated circuit. According to various embodiments of the invention, the photonic integrated circuit includes a plurality of optical devices having associated characteristics which may have lead to optical signal degradation. One or more optical amplifiers provided along one or more optical paths of the photonic integrated circuit compensate for such signal degradation, resulting in a highly configurable photonic integrated circuit. The various optical devices of the photonic integrated circuit may be provided on a single substrate.
    Type: Grant
    Filed: December 23, 2009
    Date of Patent: October 2, 2012
    Assignee: Infinera Corporation
    Inventors: Charles H. Joyner, Radhakrishnan L. Nagarajan, Peter W. Evans
  • Patent number: 8260096
    Abstract: Consistent with the present disclosure, the number of passive waveguides in a PIC are reduced by directly connecting active components to one another. Accordingly, optical signals propagating in the PIC may experience less loss, and, thus, improved performance may be achieved. In addition, active components may be bent or curved in order to obtain a more compact layout with greater device density. Reduced manufacturing costs can therefore be realized.
    Type: Grant
    Filed: May 15, 2009
    Date of Patent: September 4, 2012
    Assignee: Infinera Corporation
    Inventors: Charles H. Joyner, Peter W. Evans, Scott Corzine, Masaki Kato
  • Patent number: 8238759
    Abstract: A high capacity optical transmitter implemented on a photonic integrated circuit chip comprises a single light source which supplies a continuous wave having a particular wavelength to a plurality of modulators to form modulated optical information signals. A phase shifter is coupled to at least one of the modulators and is used to shift the phase of the corresponding modulated optical information signal associated with a particular modulator. A polarization beam combiner receives each of the modulated optical information signals from the modulators and the modulated optical information signal from the phase shifter and combines each of these signals to form a polarization multiplexed differential quadrature phase-shift keying signal. The light source, the plurality of modulators, the phase shifter and the polarization beam combiner are all integrated on the chip.
    Type: Grant
    Filed: December 29, 2008
    Date of Patent: August 7, 2012
    Assignee: Infinera Corporation
    Inventors: Charles H. Joyner, Radhakrishnan L. Nagarajan, Masaki Kato, Peter W. Evans, Fred A. Kish, Jr.
  • Patent number: 8238758
    Abstract: A modulator is disclosed that includes three arms between a splitter portion and a coupler portion. The modulator typically requires at most a ?/2 phase shift between constellation points. Accordingly, the modulator is more efficient and consumes less power.
    Type: Grant
    Filed: December 24, 2008
    Date of Patent: August 7, 2012
    Assignee: Infinera Corporation
    Inventors: Charles H. Joyner, Scott Corzine, Masaki Kato, Mehrdad Ziari
  • Patent number: 8233510
    Abstract: A dual output laser source provided on a substrate outputs light from a first and second output. A portion of the light generated by the laser is supplied to a first modulator via the first output. A second portion of the light generated by the laser is supplied to a second modulator via the second output. The first modulator is provided on the substrate and generates a first modulated signal. The second modulator is also provided on the substrate and generates a second modulated signal. Each output of the laser is used to provide continuous wave light sources to components on photonic integrated circuit.
    Type: Grant
    Filed: February 2, 2009
    Date of Patent: July 31, 2012
    Assignee: Infinera Corporation
    Inventors: Charles H. Joyner, Radhakrishnan L. Nagarajan, Peter W. Evans, Masaki Kato
  • Patent number: 8213802
    Abstract: An optical receiver includes a first substrate including a demultiplexer and a first optical waveguide array. An input of the demultiplexer is configured to receive a wavelength division multiplexed optical input signal having a plurality of channels. Each of the plurality of channels corresponds to one of a plurality of wavelengths. Each of the plurality of outputs is configured to supply a corresponding one of the plurality of channels. The first optical waveguide array has a plurality of inputs. Each of the inputs of the first optical waveguide array is configured to receive a corresponding one of the plurality of channels. A second substrate is in signal communication with the first substrate and includes an optical detector array. The optical detector array has a plurality of inputs, each of which is configured to receive a corresponding one of the plurality of channels and generate an electrical signal in response thereto.
    Type: Grant
    Filed: December 30, 2008
    Date of Patent: July 3, 2012
    Assignee: Infinera Corporation
    Inventors: Brent E. Little, Wei Chen, John V. Hryniewicz, Sai T. Chu, Jeff Rahn, Mehrdad Ziari, Timothy Butrie, Michael Reffle, Fred A. Kish, Jr., Charles H. Joyner
  • Patent number: 8184929
    Abstract: An optical transmitter comprises a monolithic transmitter photonic integrated circuit (TxPIC) chip that includes an array of modulated sources formed on the PIC chip and having different operating wavelengths approximating a standardized wavelength grid and providing signal outputs of different wavelengths. A wavelength selective combiner is formed on the PIC chip having a wavelength grid passband response approximating the wavelength grid of the standardized wavelength grid. The signal outputs of the modulated sources optically coupled to inputs of the wavelength selective combiner to produce a combined signal output from the combiner. A first wavelength tuning element coupled to each of the modulated sources and a second wavelength tuning element coupled to the wavelength selective combiner. A wavelength monitoring unit is coupled to the wavelength selective combiner to sample the combined signal output.
    Type: Grant
    Filed: December 29, 2008
    Date of Patent: May 22, 2012
    Assignee: Infinera Corporation
    Inventors: Fred A. Kish, Jr., Charles H. Joyner, David F. Welch, Robert B. Taylor, Alan C. Nilsson