Patents by Inventor Antonio Sanchez-Rubio
Antonio Sanchez-Rubio 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: 10571569Abstract: A method of imaging a scene includes generating a temporally varying optical intensity pattern from at least one continuous wave (CW) light beam. The method also includes illuminating at least one portion of the scene with the temporally varying optical intensity pattern so as to cause a photon to scatter or reflect off the at least one portion of the scene. The photon reflected or scatted from the at least one portion of the scene is detected using a single-photon detector. Based on the temporally varying optical intensity pattern and a time of flight of the photon detected, a distance between the single-photon detector and the at least one portion of the scene is estimated.Type: GrantFiled: August 14, 2018Date of Patent: February 25, 2020Assignee: Massachusetts Institute of TechnologyInventors: Juan C. Montoya, Antonio Sanchez-Rubio, Harold C. Payson, Robert E. Hatch, Richard Heinrichs, Dale G. Fried
-
Publication number: 20190064357Abstract: A method of imaging a scene includes generating a temporally varying optical intensity pattern from at least one continuous wave (CW) light beam. The method also includes illuminating at least one portion of the scene with the temporally varying optical intensity pattern so as to cause a photon to scatter or reflect off the at least one portion of the scene. The photon reflected or scatted from the at least one portion of the scene is detected using a single-photon detector. Based on the temporally varying optical intensity pattern and a time of flight of the photon detected, a distance between the single-photon detector and the at least one portion of the scene is estimated.Type: ApplicationFiled: August 14, 2018Publication date: February 28, 2019Inventors: Juan C. Montoya, Antonio Sanchez-Rubio, Harold C. Payson, Robert E. Hatch, Richard Heinrichs, Dale G. Fried
-
Patent number: 10073177Abstract: A method of imaging a scene includes generating a temporally varying optical intensity pattern from at least one continuous wave (CW) light beam. The method also includes illuminating at least one portion of the scene with the temporally varying optical intensity pattern so as to cause a photon to scatter or reflect off the at least one portion of the scene. The photon reflected or scatted from the at least one portion of the scene is detected using a single-photon detector. Based on the temporally varying optical intensity pattern and a time of flight of the photon detected, a distance between the single-photon detector and the at least one portion of the scene is estimated.Type: GrantFiled: November 12, 2015Date of Patent: September 11, 2018Assignee: Massachusetts Institute of TechnologyInventors: Juan C. Montoya, Antonio Sanchez-Rubio, Harold C. Payson, Robert E. Hatch, Richard Heinrichs, Dale G. Fried
-
Patent number: 9620928Abstract: A laser system comprises: a seed oscillator, having a seed output; dispersive optics, operative to receive the seed output and divide the seed output into spectrally separate seed components; an array of individually addressable, phase adjustable laser amplifiers corresponding to the spectrally separate components, each laser amplifier receiving as its seed one of the spectrally separate seed components and producing one of the spectrally separate amplified components; and phase actuators controlling the individually addressable, phase adjustable laser amplifiers. A method of operating a laser system comprises: generating a seed signal; dividing the seed signal into spectrally separate component signals; amplifying the spectrally separate component signals; recombining the spectrally separate component signals into an amplified output; and controlling phases of the amplified spectrally separate component signals. Both single-pass and double-pass amplifier array versions are disclosed.Type: GrantFiled: July 16, 2010Date of Patent: April 11, 2017Assignee: MASSACHUSETTS INSTITUTE OF TECHNOLOGYInventors: Bien Chann, Daniel J. Ripin, Tso Yee Fan, Antonio Sanchez-Rubio
-
Patent number: 9575325Abstract: A method and apparatus for two-dimensional wavelength beam combining of laser sources. In one example, an external cavity multi-wavelength laser includes an array of laser emitters each producing an optical beam having a specified wavelength, a grating stack comprising a plurality of first-order diffraction gratings arranged linearly in a first dimension, and a dispersive element. The laser further includes a cylindrical telescope that images the optical beams from the array of laser emitters onto the grating stack. A first cylindrical transform lens spatially overlaps the optical beams in a second dimension forming a first region of overlap at the grating stack. A second cylindrical transform lens spatially overlaps the optical beams from the grating stack in the first dimension forming a second region of overlap at the dispersive element. The dispersive element transmits a multi-wavelength output beam comprising the spatially overlapped optical beams from the array of laser emitters.Type: GrantFiled: December 20, 2013Date of Patent: February 21, 2017Assignee: MASSACHUSETTS INSTITUTE OF TECHNOLOGYInventors: Bien Chann, Tso Yee Fan, Antonio Sanchez-Rubio
-
Publication number: 20160139266Abstract: A method of imaging a scene includes generating a temporally varying optical intensity pattern from at least one continuous wave (CW) light beam. The method also includes illuminating at least one portion of the scene with the temporally varying optical intensity pattern so as to cause a photon to scatter or reflect off the at least one portion of the scene. The photon reflected or scatted from the at least one portion of the scene is detected using a single-photon detector. Based on the temporally varying optical intensity pattern and a time of flight of the photon detected, a distance between the single-photon detector and the at least one portion of the scene is estimated.Type: ApplicationFiled: November 12, 2015Publication date: May 19, 2016Inventors: Juan C. Montoya, Antonio Sanchez-Rubio, Harold C. Payson, Robert E. Hatch, Richard Heinrichs, Dale G. Fried
-
Patent number: 9246310Abstract: A laser source based on a quantum cascade laser array (QCL), wherein the outputs of at least two elements in the array are collimated and overlapped in the far field using an external diffraction grating and a transform lens.Type: GrantFiled: August 3, 2011Date of Patent: January 26, 2016Assignees: President and Fellows of Harvard College, Massachusetts Institute of TechnologyInventors: Anish Goyal, Benjamin G. Lee, Christian Pfluegl, Laurent Diehl, Mikhail Belkin, Antonio Sanchez-Rubio, Federico Capasso
-
Patent number: 9134538Abstract: Coherent beam combining of laser gain elements achieves high output power in a diffraction limited beam. An active beam combining system coherently combines optical beams emitted by semiconductor laser gain elements in an external resonant cavity configuration. A beam combiner in the resonant cavity combines the outputs of the laser gain elements into a single coherent output beam whose power is monitored by a photodetector. A processor uses the photodetector's output to adjust the phases of the respective optical beams emitted by the laser gain elements so as to increase or maximize the coherent output beam's power. The processor may vary the optical beams' phases according to a stochastic parallel gradient descent (SPGD) algorithm for active phase control. Experimental results show a beam combining efficiency of 81% with an upper limit of 90% or higher and without the scaling limits imposed on passive-phasing systems.Type: GrantFiled: February 6, 2013Date of Patent: September 15, 2015Assignee: Massachusetts Institute of TechnologyInventors: Steven J. Augst, Juan Camilo Montoya, Tso Yee Fan, Antonio Sanchez-Rubio
-
Patent number: 9136667Abstract: A method and apparatus for providing a high peak power optical beam. The method includes interleaving pulse trains of different wavelengths and spatially and temporally overlapping the different wavelengths to produce an amplified output beam with very high peak power.Type: GrantFiled: August 22, 2013Date of Patent: September 15, 2015Assignee: MASSACHUSETTS INSTITUTE OF TECHNOLOGYInventors: Bien Chann, Tso Yee Fan, Antonio Sanchez-Rubio, Steven J. Augst
-
Patent number: 8867046Abstract: A method and an apparatus of measuring a position of a particle in a flow are disclosed. An embodiment of the method comprises temporally modulating and spatially pattering an illumination beam propagating along a first dimension, passing a particle across the modulated illumination beam, detecting a temporal profile of scattered light produced by the particle's passing through the modulated illumination beam, and determining the position of the particle based, in part, on the temporal profile of the detected scattered light.Type: GrantFiled: October 26, 2012Date of Patent: October 21, 2014Assignee: Massachusetts Institute of TechnologyInventors: Thomas H. Jeys, Antonio Sanchez-Rubio, Ronald H. Hoffeld, Jonathan Z. Lin, Nicholas M. F. Judson, George S. Haldeman, Vincenzo Daneu
-
Publication number: 20140192417Abstract: A method and apparatus for two-dimensional wavelength beam combining of laser sources. In one example, an external cavity multi-wavelength laser includes an array of laser emitters each producing an optical beam having a specified wavelength, a grating stack comprising a plurality of first-order diffraction gratings arranged linearly in a first dimension, and a dispersive element. The laser further includes a cylindrical telescope that images the optical beams from the array of laser emitters onto the grating stack. A first cylindrical transform lens spatially overlaps the optical beams in a second dimension forming a first region of overlap at the grating stack. A second cylindrical transform lens spatially overlaps the optical beams from the grating stack in the first dimension forming a second region of overlap at the dispersive element. The dispersive element transmits a multi-wavelength output beam comprising the spatially overlapped optical beams from the array of laser emitters.Type: ApplicationFiled: December 20, 2013Publication date: July 10, 2014Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGYInventors: Bien Chann, Tso Yee Fan, Antonio Sanchez-Rubio
-
Publication number: 20130342895Abstract: A method and apparatus for providing a high peak power optical beam. The method includes interleaving pulse trains of different wavelengths and spatially and temporally overlapping the different wavelengths to produce an amplified output beam with very high peak power.Type: ApplicationFiled: August 22, 2013Publication date: December 26, 2013Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGYInventors: Bien Chann, Tso Yee Fan, Antonio Sanchez-Rubio, Steven J. Augst
-
Patent number: 8614853Abstract: A method and apparatus for two-dimensional wavelength beam combining of laser sources. In one example, an external cavity multi-wavelength laser includes an array of laser emitters each producing an optical beam having a specified wavelength, a grating stack comprising a plurality of first-order diffraction gratings arranged linearly in a first dimension, and a dispersive element. The laser further includes a cylindrical telescope that images the optical beams from the array of laser emitters onto the grating stack. A first cylindrical transform lens spatially overlaps the optical beams in a second dimension forming a first region of overlap at the grating stack. A second cylindrical transform lens spatially overlaps the optical beams from the grating stack in the first dimension forming a second region of overlap at the dispersive element. The dispersive element transmits a multi-wavelength output beam comprising the spatially overlapped optical beams from the array of laser emitters.Type: GrantFiled: March 9, 2010Date of Patent: December 24, 2013Assignee: Massachusetts Institute of TechnologyInventors: Bien Chann, Tso Yee Fan, Antonio Sanchez-Rubio
-
Patent number: 8531761Abstract: A method and apparatus for providing a high peak power optical beam. The method includes interleaving pulse trains of different wavelengths and spatially and temporally overlapping the different wavelengths to produce an amplified output beam with very high peak power.Type: GrantFiled: May 27, 2010Date of Patent: September 10, 2013Assignee: Massachusetts Institute of TechnologyInventors: Bien Chann, Tso Yee Fan, Antonio Sanchez-Rubio, Steven J. Augst
-
Patent number: 8531772Abstract: An external-cavity one-dimensional multi-wavelength beam combiner that performs wavelength beam combining along a stacking dimension of a laser stack formed of a plurality of laser arrays, each laser array configured to generate optical radiation having a unique wavelength, and each of the plurality of laser arrays including one or more laser emitters arranged along an array dimension of the laser stack. The multi-wavelength beam combiner includes an optical imaging element configured to image each of the laser emitters along a slow axis of the laser emitters, an optical focusing element arranged to intercept the optical radiation from each of the plurality of laser arrays and combine the optical radiation along a stacking dimension of the laser stack to form a multi-wavelength optical beam, and a diffraction element positioned at a region of overlap of the optical radiation to receive and transmit the multi-wavelength optical beam.Type: GrantFiled: September 13, 2011Date of Patent: September 10, 2013Assignee: Massachusetts Institute of TechnologyInventors: Bien Chann, Tso Yee Fan, Antonio Sanchez-Rubio
-
Patent number: 8319965Abstract: Aerosol and hydrosol particle detection systems without knowledge of a location and velocity of a particle passing through a volume of space, are less efficient than if knowledge of the particle location is known. An embodiment of a particle position detection system capable of determining an exact location of a particle in a fluid stream is discussed. The detection system may employ a patterned illuminating beam, such that once a particle passes through the patterned illuminating beam, a light scattering is produced. The light scattering defines a temporal profile that contains measurement information indicative of an exact particle location. However, knowledge of the exact particle location has several advantages. These advantages include correction of systematic particle measurement errors due to variability of the particle position within the sample volume, targeting of particles based on position, capture of particles based on position, reduced system energy consumption and reduced system complexity.Type: GrantFiled: August 6, 2010Date of Patent: November 27, 2012Assignee: Massachusetts Institute of TechnologyInventors: Thomas H. Jeys, Antonio Sanchez-Rubio, Ronald H. Hoffeld, Jonathan Z. Lin, Nicholas M. F. Judson, George S. Haldeman, Vincenzo Daneu
-
Publication number: 20120033697Abstract: A laser source based on a quantum cascade laser array (QCL), wherein the outputs of at least two elements in the array are collimated and overlapped in the far field using an external diffraction grating and a transform lens.Type: ApplicationFiled: August 3, 2011Publication date: February 9, 2012Applicants: PRESIDENT AND FELLOWS OF HARVARD COLLEGE, MASSACHUSETTS INSTITUTE OF TECHNOLOGYInventors: Anish Goyal, Benjamin G. Lee, Christian Pfluegl, Laurent Diehl, Mikhail Belkin, Antonio Sanchez-Rubio, Federico Capasso
-
Publication number: 20120014397Abstract: A laser system comprises: a seed oscillator, having a seed output; dispersive optics, operative to receive the seed output and divide the seed output into spectrally separate seed components; an array of individually addressable, phase adjustable laser amplifiers corresponding to the spectrally separate components, each laser amplifier receiving as its seed one of the spectrally separate seed components and producing one of the spectrally separate amplified components; and phase actuators controlling the individually addressable, phase adjustable laser amplifiers. A method of operating a laser system comprises: generating a seed signal; dividing the seed signal into spectrally separate component signals; amplifying the spectrally separate component signals; recombining the spectrally separate component signals into an amplified output; and controlling phases of the amplified spectrally separate component signals. Both single-pass and double-pass amplifier array versions are disclosed.Type: ApplicationFiled: July 16, 2010Publication date: January 19, 2012Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGYInventors: Bien Chann, Daniel J. Ripin, Tso Yee Fan, Antonio Sanchez-Rubio
-
Publication number: 20120002272Abstract: An external-cavity one-dimensional multi-wavelength beam combiner that performs wavelength beam combining along a stacking dimension of a laser stack formed of a plurality of laser arrays, each laser array configured to generate optical radiation having a unique wavelength, and each of the plurality of laser arrays including one or more laser emitters arranged along an array dimension of the laser stack. The multi-wavelength beam combiner includes an optical imaging element configured to image each of the laser emitters along a slow axis of the laser emitters, an optical focusing element arranged to intercept the optical radiation from each of the plurality of laser arrays and combine the optical radiation along a stacking dimension of the laser stack to form a multi-wavelength optical beam, and a diffraction element positioned at a region of overlap of the optical radiation to receive and transmit the multi-wavelength optical beam.Type: ApplicationFiled: September 13, 2011Publication date: January 5, 2012Applicant: Massachusetts Institute of TechnologyInventors: Bien Chann, Tso Yee Fan, Antonio Sanchez-Rubio
-
Publication number: 20110292498Abstract: A method and apparatus for providing a high peak power optical beam. The method includes interleaving pulse trains of different wavelengths and spatially and temporally overlapping the different wavelengths to produce an amplified output beam with very high peak power.Type: ApplicationFiled: May 27, 2010Publication date: December 1, 2011Applicant: Massachusetts Institute of TechnologyInventors: Bien Chann, Tso Yee Fan, Antonio Sanchez-Rubio, Steven J. Augst