Patents by Inventor Marie-Josée PICARD
Marie-Josée PICARD 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).
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Publication number: 20240077532Abstract: An apparatus for testing a wafer or chip comprising a photonic integrated circuit comprises: an electrical signal interface module comprising an array of movable conducting structures; a photonic signal interface module attached to the electrical signal interface module, the photonic signal interface module comprising one or more optical fiber interfaces, and a first set of grating couplers arranged over at least a first plane of the photonic signal interface module; and one or more electrical signal connections between the electrical signal interface module and the photonic signal interface module.Type: ApplicationFiled: September 6, 2022Publication date: March 7, 2024Applicant: Ciena CorporationInventors: Jérôme Leclerc-Perron, Marie-Josee Picard, Raphael Beaupré-Laflamme
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Publication number: 20240047932Abstract: An apparatus comprises: a gain medium configured to be pumped by a pump source; a photonic integrated circuit (PIC) positioned in a laser cavity that includes the gain medium, the PIC comprising a substrate comprising silicon, a plurality of photonic structures, and one or more ports coupling an optical wave into the PIC, and coupling an optical wave out of the PIC; an optical isolator configured to limit propagation of an optical wave in a single direction through the optical isolator; and an output coupler configured to provide an output that comprises a fraction of the power of an optical wave that is incident upon the output coupler and to redirect remaining power of the optical wave around a closed path of the laser cavity, where the fraction is greater than 0.5.Type: ApplicationFiled: October 10, 2023Publication date: February 8, 2024Inventors: Claude Gamache, Antoine Bois, Marie-Josee Picard
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Publication number: 20230384520Abstract: An integrated circuit can include one or more photonic layers that include a plurality of photonic integrated circuit portions. A first optical coupler is configured to couple an optical mode of an optical wave to a first photonic integrated circuit portion in the one or more photonic layers. A second optical coupler is configured to couple an optical mode of an optical wave to a second photonic integrated circuit portion that is optically uncoupled to the first photonic integrated circuit portion. The second photonic integrated circuit portion comprises a polarization-sensitive photonic component, and an optical splitter comprising at least one input port optically coupled to the polarization-sensitive photonic component and at least two output ports including a first output port and a second output port.Type: ApplicationFiled: May 24, 2022Publication date: November 30, 2023Applicant: Ciena CorporationInventors: Marie-Josee Picard, Christine Latrasse
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Patent number: 11817673Abstract: A gain medium is pumped by a source. An optical wave passes through a photonic integrated circuit (PIC) that comprises: a substrate comprising silicon, multiple photonic structures, an input port coupling an optical wave into a waveguide formed in the PIC, and an output port coupling an optical wave out of a waveguide formed in the PIC. Propagation of an optical wave circulating around a closed path of a laser ring cavity is limited using an optical isolator such that, when the pump source exceeds a lasing threshold, the optical wave propagates in a single direction through the gain medium and PIC. From an output coupler, an output is provided that comprises a fraction (e.g., >0.5) of the power of an optical wave that is incident upon the output coupler, and remaining power of the optical wave is redirected around the closed path of the laser ring cavity.Type: GrantFiled: December 28, 2022Date of Patent: November 14, 2023Assignee: Ciena CorporationInventors: Claude Gamache, Antoine Bois, Marie-Josee Picard
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Patent number: 11683092Abstract: A loss-based wavelength meter includes a first photodiode configured to measure power of monochromatic light; and a loss section having a monotonic wavelength dependency, wherein a wavelength of the monochromatic light is determined based on measurements of the first photodiode after the monochromatic light has gone through the loss section. This provides a compact implementation that may be used in integrated optics devices using silicon photonics as well as other embodiments.Type: GrantFiled: February 24, 2021Date of Patent: June 20, 2023Assignee: Ciena CorporationInventors: Antoine Bois, Alexandre Delisle-Simard, Marie-Josée Picard, Michel Poulin
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Patent number: 11552443Abstract: A gain medium is pumped by a source. An optical wave passes through a photonic integrated circuit (PIC) that comprises: a substrate comprising Silicon, a plurality of photonic structures, an input port coupling an optical wave into a waveguide formed in the PIC, and an output port coupling an optical wave out of a waveguide formed in the PIC. Propagation of an optical wave circulating around a closed path of a laser ring cavity is limited using an optical isolator such that, when the pump source exceeds a lasing threshold, the optical wave propagates in a single direction through the gain medium and the PIC. From output coupler, an output that is provided that comprises a fraction of the power of an optical wave that is incident upon the output coupler, and remaining power of the optical wave is redirected around the closed path of the laser ring cavity. The fraction can be greater than 0.5.Type: GrantFiled: September 21, 2020Date of Patent: January 10, 2023Assignee: Ciena CorporationInventors: Claude Gamache, Antoine Bois, Marie-Josee Picard
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Publication number: 20210266066Abstract: A loss-based wavelength meter includes a first photodiode configured to measure power of monochromatic light; and a loss section having a monotonic wavelength dependency, wherein a wavelength of the monochromatic light is determined based on measurements of the first photodiode after the monochromatic light has gone through the loss section. This provides a compact implementation that may be used in integrated optics devices using silicon photonics as well as other embodiments.Type: ApplicationFiled: February 24, 2021Publication date: August 26, 2021Inventors: Antoine Bois, Alexandre Delisle-Simard, Marie-Josée Picard, Michel Poulin
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Patent number: 10955615Abstract: A waveguide coupling structure includes: a first section that supports a mode that has an associated first intensity profile that substantially overlaps with an intensity profile associated with a mode supported by a first waveguide portion at a first end of the waveguide coupling structure; a second section that supports a mode that has an associated second intensity profile that substantially overlaps with an intensity profile associated with a mode supported by a second waveguide portion at a second end of the waveguide coupling structure; and a third section, between the first section and the second section, comprising a core structure on a bottom cladding and a supporting structure on the bottom cladding. The supporting structure: (1) overlaps with at least a portion of an intensity profile associated with a guided mode of the third section, and (2) has a shape that is asymmetric with respect to a propagation axis of the guided mode in a plane parallel to a surface of the bottom cladding.Type: GrantFiled: July 15, 2019Date of Patent: March 23, 2021Assignee: Ciena CorporationInventors: Marie-Josee Picard, Alexandre Delisle-Simard
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Publication number: 20210018681Abstract: A waveguide coupling structure includes: a first section that supports a mode that has an associated first intensity profile that substantially overlaps with an intensity profile associated with a mode supported by a first waveguide portion at a first end of the waveguide coupling structure; a second section that supports a mode that has an associated second intensity profile that substantially overlaps with an intensity profile associated with a mode supported by a second waveguide portion at a second end of the waveguide coupling structure; and a third section, between the first section and the second section, comprising a core structure on a bottom cladding and a supporting structure on the bottom cladding. The supporting structure: (1) overlaps with at least a portion of an intensity profile associated with a guided mode of the third section, and (2) has a shape that is asymmetric with respect to a propagation axis of the guided mode in a plane parallel to a surface of the bottom cladding.Type: ApplicationFiled: July 15, 2019Publication date: January 21, 2021Inventors: Marie-Josee Picard, Alexandre Delisle-Simard
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Patent number: 10663663Abstract: A spot-size converter includes a first part of a waveguiding structure to couple to a first waveguide to receive light from or transmit light to the first waveguide in a first propagation mode, wherein the first part of the waveguiding structure has a lower waveguiding structure with a varying effective refractive index that decreases away from the first waveguide; and a second part of the waveguiding structure to couple to a second waveguide to transmit light to or receive light from the second waveguide in a second propagation mode, the second part of the waveguiding structure includes an upper waveguiding structure with a plurality of high-index elements arranged therein, an overlap region is between the first part and the second part, the first propagation mode progressively transforms into the second propagation mode in the overlap region.Type: GrantFiled: August 2, 2019Date of Patent: May 26, 2020Assignee: Ciena CorporationInventors: Yves Painchaud, Marie-Josee Picard, Ian Betty, Christine Latrasse, Michel Poulin
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Publication number: 20190384003Abstract: A spot-size converter includes a first part of a waveguiding structure to couple to a first waveguide to receive light from or transmit light to the first waveguide in a first propagation mode, wherein the first part of the waveguiding structure has a lower waveguiding structure with a varying effective refractive index that decreases away from the first waveguide; and a second part of the waveguiding structure to couple to a second waveguide to transmit light to or receive light from the second waveguide in a second propagation mode, the second part of the waveguiding structure includes an upper waveguiding structure with a plurality of high-index elements arranged therein, an overlap region is between the first part and the second part, the first propagation mode progressively transforms into the second propagation mode in the overlap region.Type: ApplicationFiled: August 2, 2019Publication date: December 19, 2019Inventors: Yves Painchaud, Marie-Josee Picard, Ian Betty, Christine Latrasse, Michel Poulin
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Patent number: 10371895Abstract: 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: GrantFiled: April 2, 2018Date of Patent: August 6, 2019Assignee: Ciena CorporationInventors: Yves Painchaud, Marie-Josée Picard, Ian Betty, Christine Latrasse, Michel Poulin
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Patent number: 10197734Abstract: 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: GrantFiled: August 18, 2017Date of Patent: February 5, 2019Assignee: Ciena CorporationInventors: Yves Painchaud, Marie-Josée Picard, Ian Betty, Christine Latrasse, Michel Poulin
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Publication number: 20180231713Abstract: A mode coupler for modal conversion. The mode coupler includes a first rib waveguide configured to propagate, through a coupling region, a first optical signal comprising a second TE mode portion, wherein the second TE mode is associated with a second TE mode refractive index in the first rib waveguide, a second rib waveguide disposed in proximity to the first rib waveguide across the coupling region, where the first TE mode is associated with a first TE mode refractive index in the second rib waveguide that substantially matches the second TE mode refractive index in the first rib waveguide, and the coupling region configured to convert the second TE mode portion of the first optical signal into a second optical signal in the second rib waveguide, where the second optical signal is in the first TE mode of the second rib waveguide.Type: ApplicationFiled: February 16, 2017Publication date: August 16, 2018Applicant: Ciena CorporationInventor: Marie-Josée Picard
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Publication number: 20180224605Abstract: 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: ApplicationFiled: April 2, 2018Publication date: August 9, 2018Applicant: Ciena CorporationInventors: Yves Painchaud, Marie-Josée Picard, Ian Betty, Christine Latrasse, Michel Poulin
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Publication number: 20170371102Abstract: 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: ApplicationFiled: August 18, 2017Publication date: December 28, 2017Applicant: Ciena CorporationInventors: Yves Painchaud, Marie-Josée Picard, Ian Betty
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Patent number: 9851521Abstract: 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: GrantFiled: July 7, 2015Date of Patent: December 26, 2017Assignee: Ciena CorporationInventors: Francois Pelletier, Christine Latrasse, Marie-Josée Picard, Michel Poulin, Yves Painchaud
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Patent number: 9823419Abstract: 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: GrantFiled: September 29, 2016Date of Patent: November 21, 2017Assignee: Ciena CorporationInventors: Francois Pelletier, Michel Poulin, Marie-Josée Picard, Christine Latrasse
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Patent number: 9759864Abstract: 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: GrantFiled: September 30, 2016Date of Patent: September 12, 2017Assignee: Ciena CorporationInventors: Yves Painchaud, Marie-Josée Picard, Ian Betty
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Patent number: 9703047Abstract: 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: GrantFiled: March 2, 2015Date of Patent: July 11, 2017Assignee: Ciena CorporationInventors: Yves Painchaud, Marie-Josée Picard, Christine Latrasse, Michel Poulin