Patents by Inventor Carlos Angulo Barrios
Carlos Angulo Barrios 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: 8619358Abstract: An optical amplifier on a silicon platform includes a first doped device layer and a second doped device layer. A gain medium is positioned between the first and second doped device layers. The gain medium comprises extrinsic gain materials so as to substantially confine in the gain medium a light signal and allow the optical amplifier to be electrically or optically pumped.Type: GrantFiled: November 3, 2009Date of Patent: December 31, 2013Assignees: Massachusetts Institute of Technology, California Institute of Technology, The Board of Trustees of the Leland Stanford Junior University, University of Rochester, Cornell UniversityInventors: Lionel C. Kimerling, Harry Atwater, Mark L. Brongersma, Luca Dal Negro, Thomas L Koch, Philippe Fauchet, Michal Lipson, Jurgen Michel, Carlos Angulo Barrios
-
Publication number: 20100142877Abstract: An electro-optic modulator is formed on a silicon-on-insulator (SOI) rib waveguide. An optical field in the modulator is confined by using an electrically modulated microcavity. The microcavity has reflectors on each side. In one embodiment, a planar Fabry-Perot microcavity is used with deep Si/SiO2 Bragg reflectors. Carriers may be laterally confined in the microcavity region by employing deep etched lateral trenches. The refractive index of the microcavity is varied by using the free-carrier dispersion effect produced by a p-i-n diode formed about the microcavity. In one embodiment, the modulator confines both optical field and charge carriers in a micron-size region.Type: ApplicationFiled: June 30, 2009Publication date: June 10, 2010Applicant: Cornell Research Foundation, Inc.Inventors: Carlos Angulo Barrios, Michal Lipson, Vilson Rosa de Almeida
-
Publication number: 20100091358Abstract: An optical amplifier on a silicon platform includes a first doped device layer and a second doped device layer. A gain medium is positioned between the first and second doped device layers. The gain medium comprises extrinsic gain materials so as to substantially confine in the gain medium a light signal and allow the optical amplifier to be electrically or optically pumped.Type: ApplicationFiled: November 3, 2009Publication date: April 15, 2010Inventors: Lionel C. Kimerling, Harry Atwater, Mark L. Brongersma, Luca Dal Negro, Thomas L. Koch, Philippe Fauchet, Michal Lipson, Jurgen Michel, Carlos Angulo Barrios
-
Patent number: 7606455Abstract: An electroluminescent material slot waveguide generates light in response to current injection. In one embodiment, the waveguide is formed as part of an optical resonator, such as ring resonator waveguide or distributed Bragg reflector with an anode and cathode for electrical stimulation. A compact, electrically-driven resonant cavity light emitting devices (RCLED) for Si microphotonics may be formed. Several different rare-earth ions, such as erbium, terbium and ytterbium, can be used to dope SiO2 in order to emit light at different wavelengths.Type: GrantFiled: November 10, 2006Date of Patent: October 20, 2009Assignee: Cornell Research Foundation, Inc.Inventors: Carlos Angulo Barrios, Michal Lipson
-
Patent number: 7555173Abstract: An electro-optic modulator is formed on a silicon-on-insulator (SOI) rib waveguide. An optical field in the modulator is confined by using an electrically modulated microcavity. The microcavity has reflectors on each side. In one embodiment, a planar Fabry-Perot microcavity is used with deep Si/SiO2 Bragg reflectors. Carriers may be laterally confined in the microcavity region by employing deep etched lateral trenches. The refractive index of the microcavity is varied by using the free-carrier dispersion effect produced by a p-i-n diode formed about the microcavity. In one embodiment, the modulator confines both optical field and charge carriers in a micron-size region.Type: GrantFiled: April 9, 2004Date of Patent: June 30, 2009Assignee: Cornell Research Foundation, Inc.Inventors: Carlos Angulo Barrios, Michal Lipson, Vilson Rosa de Almeida
-
Patent number: 7536070Abstract: Ring or disc optical resonators are provided with random or coherent corrugation on a top surface to cause optical power to be radiated in a desired direction by light scattering. The resonators may be positioned proximate a waveguide, either in-plane or inter-plane with the waveguide. The resonators are used in a polymeric photonic display. Light at each fundamental color is generated by light emitting diodes, such as organic light emitting diodes (OLEDs). The light is coupled into waveguides that cross an array of diffractive elements, such as the resonators, each combined with an optical modulator, such as a polymer electro-optic (EO) modulator. The modulator allows light from the waveguides to reach the diffractive elements. Control lines run across the waveguides, and provide control signals to the modulators, allowing one row of diffractive elements at a time to receive light from the waveguides. The rows are scanned and synchronized with light generated by the OLEDs.Type: GrantFiled: January 29, 2007Date of Patent: May 19, 2009Assignee: Cornell Research Foundation, Inc.Inventors: Vilson Rosa de Almeida, Carlos Angulo Barrios, Roberto R. Panepucci, Michal Lipson
-
Patent number: 7519257Abstract: A high-index-contrast waveguide structure material used to guide light through a low-refractive-index material. In one embodiment, the waveguide structures are capable of guiding and confining light in such a way that very high optical intensity is obtained in a small cross-sectional area or gap filled with any material with sufficiently low refractive index, relative to the remainder of the structure. The structure may be used to form resonators, optical couplers, directional optical couplers and other optical devices. Structures may be formed consistent with integrated circuit forming processes.Type: GrantFiled: November 25, 2005Date of Patent: April 14, 2009Assignee: Cornell Research Foundation, Inc.Inventors: Michal Lipson, Carlos Angulo Barrios, Vilson Rosa de Almeida, Roberto R. Panepucci, Qianfan Xu
-
Patent number: 7400798Abstract: Fast, all optical switching of light is provided on silicon, using highly light confining structures to enhance the sensitivity of light to small changes in refractive index. In one embodiment, the light confining structures are silicon micrometer-size planar ring resonators which operate with low pump light pulse energies.Type: GrantFiled: May 25, 2005Date of Patent: July 15, 2008Assignee: Cornell Research Foundation, Inc.Inventors: Vilson Rosa de Almeida, Carlos Angulo Barrios, Roberto R. Panepucci, Michal Lipson
-
Patent number: 7184632Abstract: Ring or disc optical resonators are provided with random or coherent corrugation on a top surface to cause optical power to be radiated in a desired direction by light scattering. The resonators may be positioned proximate a waveguide, either in-plane or inter-plane with the waveguide. The resonators are used in a polymeric photonic display. Light at each fundamental color is generated by light emitting diodes, such as organic light emitting diodes (OLEDs). The light is coupled into waveguides that cross an array of diffractive elements, such as the resonators, each combined with an optical modulator, such as a polymer electro-optic (EO) modulator. The modulator allows light from the waveguides to reach the diffractive elements. Control lines run across the waveguides, and provide control signals to the modulators, allowing one row of diffractive elements at a time to receive light from the waveguides. The rows are scanned and synchronized with light generated by the OLEDs.Type: GrantFiled: December 22, 2003Date of Patent: February 27, 2007Assignee: Cornell Research Foundation, Inc.Inventors: Vilson Rosa de Almeida, Carlos Angulo Barrios, Roberto R. Panepucci, Michal Lipson
-
Publication number: 20040240782Abstract: Ring or disc optical resonators are provided with random or coherent corrugation on a top surface to cause optical power to be radiated in a desired direction by light scattering. The resonators may be positioned proximate a waveguide, either in-plane or inter-plane with the waveguide. The resonators are used in a polymeric photonic display. Light at each fundamental color is generated by light emitting diodes, such as organic light emitting diodes (OLEDs). The light is coupled into waveguides that cross an array of diffractive elements, such as the resonators, each combined with an optical modulator, such as a polymer electro-optic (EO) modulator. The modulator allows light from the waveguides to reach the diffractive elements. Control lines run across the waveguides, and provide control signals to the modulators, allowing one row of diffractive elements at a time to receive light from the waveguides. The rows are scanned and synchronized with light generated by the OLEDs.Type: ApplicationFiled: December 22, 2003Publication date: December 2, 2004Applicant: Cornell Research Foundation, Inc.Inventors: Vilson Rosa de Almeida, Carlos Angulo Barrios, Roberto R. Panepucci, Michal Lipson