Patents by Inventor Michel A. Poulin

Michel A. Poulin 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: 10330961
    Abstract: An optoelectronic integrated circuit includes (i) a first back-to-back-junction component (BBJC) and a second BBJC that conform to a first fabrication pattern, where the first BBJC includes a first A-type p-n junction (APNJ) in series with a first B-type p-n junction (BPNJ), where the second BBJC includes a second APNJ in series with a second BPNJ, and (ii) an optical component conforming to a second fabrication pattern that superimposes the first fabrication pattern. The APNJs and BPNJs may be identified based overlapping with separate arms of the optical component. The optical component overlaps the APNJs and BPNJs to provide modulation to optical signals using the modulation voltage from the electrodes. The first APNJ, the first BPNJ, the second APNJ, and the second BPNJ are disposed along respective directions, where metal bridges may be used, to reduce an imbalance in the modulation of the optical signals resulting from a fabrication misalignment.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: June 25, 2019
    Assignee: Ciena Corporation
    Inventors: Christine Latrasse, Yves Painchaud, Michel Poulin
  • Patent number: 10197734
    Abstract: A spot-size converter for coupling light between a first waveguide and a second waveguide extends along a longitudinal waveguiding axis and includes a transition region. The transition region includes a first part of waveguiding structure, which is coupled to the first waveguide, and a second part of waveguiding structure, which is coupled to the second waveguide. The second part of waveguiding structure includes high-index elements arranged in multiple vertically spaced rows and horizontally spaced columns, and extends along the longitudinal waveguiding axis at least partially over the first part of waveguiding structure so as to define a low-index region where the mode of the first waveguide progressively transforms into the mode of the second waveguide, thereby enabling light propagation via a mode of the combined system of the first and second parts of waveguiding structures.
    Type: Grant
    Filed: August 18, 2017
    Date of Patent: February 5, 2019
    Assignee: Ciena Corporation
    Inventors: Yves Painchaud, Marie-Josée Picard, Ian Betty, Christine Latrasse, Michel Poulin
  • Patent number: 10197821
    Abstract: An optical modulator circuit includes first and second electrodes, first and second p-n junction segments (PNJSs), and first and second optical waveguides. The first PNJS includes a first modulating p-n junction (MPNJ) in series with a first non-modulating device (NMD) that are connected to the first and second electrodes, respectively, where the first NMD includes a first substantially larger capacitance than the first MPNJ. The second PNJS includes a second NMD in series with a second MPNJ that are connected to the first and second electrodes, respectively, where the second NMD includes a second substantially larger capacitance than the second MPNJ. The first and second optical waveguides superimpose the first and second MPNJs, respectively, where the first and second MPNJs are configured to modulate a refractive index of the first and second optical waveguides, respectively, based on the substantially larger capacitance of the first NMD and the second NMD.
    Type: Grant
    Filed: December 8, 2017
    Date of Patent: February 5, 2019
    Assignee: Ciena Corporation
    Inventors: Michel Poulin, Yves Painchaud, Alexandre Delisle-Simard
  • Publication number: 20180314083
    Abstract: An optoelectronic integrated circuit includes (i) a first back-to-back-junction component (BBJC) and a second BBJC that conform to a first fabrication pattern, where the first BBJC includes a first A-type p-n junction (APNJ) in series with a first B-type p-n junction (BPNJ), where the second BBJC includes a second APNJ in series with a second BPNJ, and (ii) an optical component conforming to a second fabrication pattern that superimposes the first fabrication pattern. The APNJs and BPNJs may be identified based overlapping with separate arms of the optical component. The optical component overlaps the APNJs and BPNJs to provide modulation to optical signals using the modulation voltage from the electrodes. The first APNJ, the first BPNJ, the second APNJ, and the second BPNJ are disposed along respective directions, where metal bridges may be used, to reduce an imbalance in the modulation of the optical signals resulting from a fabrication misalignment.
    Type: Application
    Filed: April 28, 2017
    Publication date: November 1, 2018
    Inventors: Christine Latrasse, Yves Painchaud, Michel Poulin
  • Publication number: 20180307062
    Abstract: An optical modulator circuit includes first and second electrodes, first and second p-n junction segments (PNJSs), and first and second optical waveguides. The first PNJS includes a first modulating p-n junction (MPNJ) in series with a first non-modulating device (NMD) that are connected to the first and second electrodes, respectively, where the first NMD includes a first substantially larger capacitance than the first MPNJ. The second PNJS includes a second NMD in series with a second MPNJ that are connected to the first and second electrodes, respectively, where the second NMD includes a second substantially larger capacitance than the second MPNJ. The first and second optical waveguides superimpose the first and second MPNJs, respectively, where the first and second MPNJs are configured to modulate a refractive index of the first and second optical waveguides, respectively, based on the substantially larger capacitance of the first NMD and the second NMD.
    Type: Application
    Filed: December 8, 2017
    Publication date: October 25, 2018
    Inventors: Michel Poulin, Yves Painchaud, Alexandre Delisle-Simard
  • Publication number: 20180224605
    Abstract: A spot-size converter having a waveguiding structure. The first part of the waveguiding structure receives light from or transmits light to a first waveguide in a first propagation mode. The first part of the waveguiding structure has a longitudinally varying effective refractive index that decreases away from the first waveguide. The second part of the waveguiding structure transmits light to or receives light from a second waveguide in a second propagation mode. The second part of the waveguiding structure has a number of high-index elements arranged in a single plane, extending along a longitudinal waveguiding axis and at least partially overlapping the first part of the waveguiding structure. The first propagation mode of the first waveguide progressively transforms into the second propagation mode of the second waveguide along the longitudinal waveguiding axis through an overlap region between the first part and the second part of the waveguiding structure.
    Type: Application
    Filed: April 2, 2018
    Publication date: August 9, 2018
    Applicant: Ciena Corporation
    Inventors: Yves Painchaud, Marie-Josée Picard, Ian Betty, Christine Latrasse, Michel Poulin
  • Patent number: 9941973
    Abstract: A phase modulator with reduced Residual Amplitude Modulation includes a main path; a correction path; a first coupler configured to split, at a first ratio, an input to the main path and the correction path; and a second coupler configured to combine outputs from the main path and the correction path and to split the combined outputs, at a second ratio, with a first output comprising an output of the phase modulator with the reduced Residual Amplitude Modulation. The correction path can include a correction signal with a proper amplitude and phase that, when combined with an output signal from the main path by the second coupler, cancels the Residual Amplitude Modulation from the output signal.
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: April 10, 2018
    Assignee: Ciena Corporation
    Inventors: Alexandre D. Simard, Yves Painchaud, Michel Poulin
  • Publication number: 20180062755
    Abstract: A phase modulator with reduced Residual Amplitude Modulation includes a main path; a correction path; a first coupler configured to split, at a first ratio, an input to the main path and the correction path; and a second coupler configured to combine outputs from the main path and the correction path and to split the combined outputs, at a second ratio, with a first output comprising an output of the phase modulator with the reduced Residual Amplitude Modulation. The correction path can include a correction signal with a proper amplitude and phase that, when combined with an output signal from the main path by the second coupler, cancels the Residual Amplitude Modulation from the output signal.
    Type: Application
    Filed: August 29, 2016
    Publication date: March 1, 2018
    Inventors: Alexandre D. SIMARD, Yves PAINCHAUD, Michel POULIN
  • Patent number: 9851521
    Abstract: A connectorized optical chip assembly connectable to an external optical fiber having a fiber connector is provided. The connectorized optical chip assembly includes a substrate, an optical chip having an on-chip optical waveguide and a connectorized interface. The connectorized interface includes an optical coupling element mounted in optical alignment with the on-chip optical waveguide. The connectorized interface includes a chip connector engaging the optical coupling element and configured for mating with the fiber connector of the external optical fiber, so as to provide an optical coupling of light between the optical coupling element and the external optical fiber. The connectorized optical chip assembly also includes a mechanical support structure supporting the connectorized interface onto the substrate. Preferably, the components of the connectorized optical assembly are made of materials heat resistant to temperatures used to melt solder in surface mount processes.
    Type: Grant
    Filed: July 7, 2015
    Date of Patent: December 26, 2017
    Assignee: Ciena Corporation
    Inventors: Francois Pelletier, Christine Latrasse, Marie-Josée Picard, Michel Poulin, Yves Painchaud
  • Patent number: 9841618
    Abstract: An optical modulator circuit includes first and second electrodes, first and second p-n junction segments (PNJSs), and first and second optical waveguides. The first PNJS includes a first modulating p-n junction (MPNJ) in series with a first non-modulating device (NMD) that are connected to the first and second electrodes, respectively, where the first NMD includes a first substantially larger capacitance than the first MPNJ. The second PNJS includes a second NMD in series with a second MPNJ that are connected to the first and second electrodes, respectively, where the second NMD includes a second substantially larger capacitance than the second MPNJ. The first and second optical waveguides superimpose the first and second MPNJs, respectively, where the first and second MPNJs are configured to modulate a refractive index of the first and second optical waveguides, respectively, based on the substantially larger capacitance of the first NMD and the second NMD.
    Type: Grant
    Filed: April 19, 2017
    Date of Patent: December 12, 2017
    Assignee: Ciena Corporation
    Inventors: Michel Poulin, Yves Painchaud, Alexandre Delisle-Simard
  • Patent number: 9823419
    Abstract: An optical system may include a substrate that includes an etched region and a laser-induced breakage region. The optical system may further include an optical waveguide disposed on the substrate. The optical system may further include an optical device coupled to the optical waveguide within the etched region. The laser-induced breakage region may produce a predetermined coupling gap between the optical waveguide and the optical device.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: November 21, 2017
    Assignee: Ciena Corporation
    Inventors: Francois Pelletier, Michel Poulin, Marie-Josée Picard, Christine Latrasse
  • Patent number: 9703047
    Abstract: A spot-size converter for coupling light between first and second waveguides respectively supporting first and second propagation modes having substantially different dimensions is provided. The spot-size converter includes a lower and an upper waveguiding structure each characterized by an effective refractive index. The lower waveguiding structure is coupled to the first waveguide to receive light therefrom or transmit light thereto in the first propagation mode. The upper waveguiding structure is coupled to the second waveguide to transmit light thereto or receive light therefrom in the second propagation mode. The upper waveguiding structure includes a plurality of longitudinally extending high-index elements arranged in multiple vertically spaced rows.
    Type: Grant
    Filed: March 2, 2015
    Date of Patent: July 11, 2017
    Assignee: Ciena Corporation
    Inventors: Yves Painchaud, Marie-Josée Picard, Christine Latrasse, Michel Poulin
  • Publication number: 20160004021
    Abstract: A connectorized optical chip assembly connectable to an external optical fiber having a fiber connector is provided. The connectorized optical chip assembly includes a substrate, an optical chip having an on-chip optical waveguide and a connectorized interface. The connectorized interface includes an optical coupling element mounted in optical alignment with the on-chip optical waveguide. The connectorized interface includes a chip connector engaging the optical coupling element and configured for mating with the fiber connector of the external optical fiber, so as to provide an optical coupling of light between the optical coupling element and the external optical fiber. The connectorized optical chip assembly also includes a mechanical support structure supporting the connectorized interface onto the substrate. Preferably, the components of the connectorized optical assembly are made of materials heat resistant to temperatures used to melt solder in surface mount processes.
    Type: Application
    Filed: July 7, 2015
    Publication date: January 7, 2016
    Inventors: François PELLETIER, Christine LATRASSE, Marie-Josée PICARD, Michel POULIN, Yves PAINCHAUD
  • Publication number: 20150247974
    Abstract: A spot-size converter for coupling light between first and second waveguides respectively supporting first and second propagation modes having substantially different dimensions is provided. The spot-size converter includes a lower and an upper waveguiding structure each characterized by an effective refractive index. The lower waveguiding structure is coupled to the first waveguide to receive light therefrom or transmit light thereto in the first propagation mode. The upper waveguiding structure is coupled to the second waveguide to transmit light thereto or receive light therefrom in the second propagation mode. The upper waveguiding structure includes a plurality of longitudinally extending high-index elements arranged in multiple vertically spaced rows.
    Type: Application
    Filed: March 2, 2015
    Publication date: September 3, 2015
    Inventors: Yves PAINCHAUD, Marie-Josée PICARD, Christine LATRASSE, Michel POULIN
  • Patent number: 8767778
    Abstract: A system for synchronizing unrelated information or reference signals originating from multiple sources. The signals may be in different signal formats or subject to different delays at a receiving device. The system may include a master reference time generator connected to at least one of a plurality of slave reference signal generators via a packet network. The master reference time generator may include a master reference time counter and a sampling device for sampling the master reference time counter. The master reference time generator may encode time data in master reference time packets and feed these packets into the packet network. The slave reference signal generator(s) is adapted to accept the encoded time data as an input to generate a reference signal, the phase of which is calculated based on the time elapsed since an initial time point.
    Type: Grant
    Filed: July 28, 2009
    Date of Patent: July 1, 2014
    Assignee: Imagine Communications Corp.
    Inventors: Paul E. Briscoe, Leigh A. Whitcomb, Michel A. Poulin
  • Patent number: 8619824
    Abstract: A low white frequency noise tunable semiconductor laser source is presented. The laser source includes a single-mode semiconductor laser assembly which generates a laser beam having a tunable frequency over a spectral range of interest. An optical filter is provided in the path of the laser beam. The optical filter has multiple spectral features distributed over the entire spectral range of interest. Each spectral feature has a narrow spectral range. A locking mechanism is further provided and is controllable for locking a spectral alignment between the frequency of the laser beam and any selected one of the spectral features of the optical filter.
    Type: Grant
    Filed: September 2, 2011
    Date of Patent: December 31, 2013
    Assignee: Teraxion Inc.
    Inventors: Simon Ayotte, Michel Morin, Michel Poulin, Christine Latrasse, Yves Painchaud
  • Patent number: 8406621
    Abstract: A method is provided for measuring a factor, called herein the single-port rejection ratio (SPRR), characterizing a balanced detection device. The SPRR is representative of the ratio of the weak differential output current measured under illumination of a single-port of the balanced detection device to the strong measurable differential output current obtained under dual-port illumination. An apparatus for measuring the SPRR is also provided.
    Type: Grant
    Filed: October 29, 2010
    Date of Patent: March 26, 2013
    Assignee: Teraxion Inc.
    Inventors: Yves Painchaud, Michel Poulin, Michel Morin
  • Publication number: 20120063474
    Abstract: A low white frequency noise tunable semiconductor laser source is presented. The laser source includes a single-mode semiconductor laser assembly which generates a laser beam having a tunable frequency over a spectral range of interest. An optical filter is provided in the path of the laser beam. The optical filter has multiple spectral features distributed over the entire spectral range of interest. Each spectral feature has a narrow spectral range. A locking mechanism is further provided and is controllable for locking a spectral alignment between the frequency of the laser beam and any selected one of the spectral features of the optical filter.
    Type: Application
    Filed: September 2, 2011
    Publication date: March 15, 2012
    Applicant: Teraxion Inc.
    Inventors: Simon Ayotte, Michel Morin, Michel Poulin, Christine Latrasse, Yves Painchaud
  • Patent number: 8095615
    Abstract: A system replaces the current “Genlock” reference signals and distribution architectures used in media and broadcasting use an IP network and distributed timekeeping service, such as ISO/IEC 61588 or IEEE1588. In such a system, a master and multiple slave devices are used to distribute precision time and phase information to synchronize equipment and systems. The method described herein allows the generation of a signal standard and format with a single distribution system. In addition, the method allows this distribution to be accomplished over an IP network despite the non-deterministic performance of such networks. The method also allows the deterministic generation of signals at slave devices.
    Type: Grant
    Filed: November 5, 2009
    Date of Patent: January 10, 2012
    Assignee: Harris Corporation
    Inventors: Paul E. Briscoe, Leigh A. Whitcomb, Michel A. Poulin
  • Publication number: 20110129213
    Abstract: A method is provided for measuring a factor, called herein the single-port rejection ratio (SPRR), characterizing a balanced detection device. The SPRR is representative of the ratio of the weak differential output current measured under illumination of a single-port of the balanced detection device to the strong measurable differential output current obtained under dual-port illumination. An apparatus for measuring the SPRR is also provided.
    Type: Application
    Filed: October 29, 2010
    Publication date: June 2, 2011
    Inventors: Yves PAINCHAUD, Michel Poulin, Michel Morin