Patents by Inventor Ninghui Zhu

Ninghui Zhu 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).

  • Publication number: 20210215602
    Abstract: A spectroscopy system comprising at least two laser modules, each of the laser modules including a laser cavity, a quantum cascade gain chip for amplifying light within the laser cavity, and a tuning element for controlling a wavelength of light generated by the modules. Combining optics are used to combine the light generated by the at least two laser modules into a single beam and a sample detector detects the single beam returning from a sample.
    Type: Application
    Filed: October 28, 2020
    Publication date: July 15, 2021
    Inventors: Petros Kotidis, Erik Deutsch, Ninghui Zhu, Daniel J. Cavicchio, JR.
  • Patent number: 10830697
    Abstract: A spectroscopy system comprising at least two laser modules, each of the laser modules including a laser cavity, a quantum cascade gain chip for amplifying light within the laser cavity, and a tuning element for controlling a wavelength of light generated by the modules. Combining optics are used to combine the light generated by the at least two laser modules into a single beam and a sample detector detects the single beam returning from a sample.
    Type: Grant
    Filed: July 17, 2018
    Date of Patent: November 10, 2020
    Assignee: Block Engineering, LLC
    Inventors: Petros Kotidis, Erik Deutsch, Ninghui Zhu, Dan Cavicchio
  • Publication number: 20180321144
    Abstract: A spectroscopy system comprising at least two laser modules, each of the laser modules including a laser cavity, a quantum cascade gain chip for amplifying light within the laser cavity, and a tuning element for controlling a wavelength of light generated by the modules. Combining optics are used to combine the light generated by the at least two laser modules into a single beam and a sample detector detects the single beam returning from a sample.
    Type: Application
    Filed: July 17, 2018
    Publication date: November 8, 2018
    Inventors: Petros Kotidis, Erik Deutsch, Ninghui Zhu, Dan Cavicchio
  • Patent number: 10031077
    Abstract: A spectroscopy system comprising at least two laser modules, each of the laser modules including a laser cavity, a quantum cascade gain chip for amplifying light within the laser cavity, and a tuning element for controlling a wavelength of light generated by the modules. Combining optics are used to combine the light generated by the at least two laser modules into a single beam and a sample detector detects the single beam returning from a sample.
    Type: Grant
    Filed: March 25, 2016
    Date of Patent: July 24, 2018
    Assignee: Block Engineering, LLC
    Inventors: Petros Kotidis, Erik Deutsch, Ninghui Zhu, Dan Cavicchio
  • Publication number: 20160209325
    Abstract: A spectroscopy system comprising at least two laser modules, each of the laser modules including a laser cavity, a quantum cascade gain chip for amplifying light within the laser cavity, and a tuning element for controlling a wavelength of light generated by the modules. Combining optics are used to combine the light generated by the at least two laser modules into a single beam and a sample detector detects the single beam returning from a sample.
    Type: Application
    Filed: March 25, 2016
    Publication date: July 21, 2016
    Inventors: Petros Kotidis, Erik Deutsch, Ninghui Zhu, Dan Cavicchio
  • Patent number: 9329085
    Abstract: A spectroscopy system comprising at least two laser modules, each of the laser modules including a laser cavity, a quantum cascade gain chip for amplifying light within the laser cavity, and a tuning element for controlling a wavelength of light generated by the modules. Combining optics are used to combine the light generated by the at least two laser modules into a single beam and a sample detector detects the single beam returning from a sample.
    Type: Grant
    Filed: June 4, 2014
    Date of Patent: May 3, 2016
    Assignee: Block Engineering, LLC
    Inventors: Petros Kotidis, Erik Deutsch, Ninghui Zhu, Dan Cavicchio
  • Publication number: 20150292947
    Abstract: A spectroscopy system comprising at least two laser modules, each of the laser modules including a laser cavity, a quantum cascade gain chip for amplifying light within the laser cavity, and a tuning element for controlling a wavelength of light generated by the modules. Combining optics are used to combine the light generated by the at least two laser modules into a single beam and a sample detector detects the single beam returning from a sample.
    Type: Application
    Filed: June 4, 2014
    Publication date: October 15, 2015
    Inventors: Petros Kotidis, Erik Deutsch, Ninghui Zhu, Dan Cavicchio
  • Patent number: 8780347
    Abstract: A spectroscopy system comprising at least two laser modules, each of the laser modules including a laser cavity, a quantum cascade gain chip for amplifying light within the laser cavity, and a tuning element for controlling a wavelength of light generated by the modules. Combining optics are used to combine the light generated by the at least two laser modules into a single beam and a sample detector detects the single beam returning from a sample.
    Type: Grant
    Filed: June 13, 2011
    Date of Patent: July 15, 2014
    Assignee: Block Engineering, LLC
    Inventors: Petros Kotidis, Erik Deutsch, Ninghui Zhu, Dan Cavicchio
  • Publication number: 20120033220
    Abstract: A spectroscopy system comprising at least two laser modules, each of the laser modules including a laser cavity, a quantum cascade gain chip for amplifying light within the laser cavity, and a tuning element for controlling a wavelength of light generated by the modules. Combining optics are used to combine the light generated by the at least two laser modules into a single beam and a sample detector detects the single beam returning from a sample.
    Type: Application
    Filed: June 13, 2011
    Publication date: February 9, 2012
    Applicant: BLOCK ENGINEERING, LLC
    Inventors: Petros Kotidis, Erik Deutsch, Ninghui Zhu, Adam Erlich, Dan Cavicchio, John Coates, John Heanue
  • Publication number: 20080260330
    Abstract: An optical component is attached to a mounting block and the mounting block is attached to a carrier. The optical component is actively aligned by adjusting the optical component with respect to the mounting block and the mounting block with respect to the carrier. An adhesive used for the attachments can be in a layer of 5 microns or less to reduce thermal degradation and effects of thermal expansion.
    Type: Application
    Filed: April 19, 2007
    Publication date: October 23, 2008
    Inventors: Alex Rosiewicz, Ninghui Zhu
  • Patent number: 7309175
    Abstract: Method and apparatus for mounting an optical fiber for coupling to a high power light source, the fiber being secured to its mount with a low refractive index adhesive. The low refractive index adhesive serves to reduce the coupling of light traveling within the fiber to the fiber mount, thereby reducing undesirable, potentially destructive heating in the fiber mount. The adhesive preferably comprises sol gel.
    Type: Grant
    Filed: July 28, 2006
    Date of Patent: December 18, 2007
    Assignee: EM4, Inc.
    Inventors: Alex Rosiewicz, Ninghui Zhu, Michio Matsuki
  • Publication number: 20070098332
    Abstract: An inexpensive TO- or MO-series package is used to house an optical device, such as a laser, by forming an opening in a side of a package, providing an optical fiber within the opening, and coupling the optical device to the fiber. The package is preferably a TO-258 or some other similar metal package.
    Type: Application
    Filed: October 28, 2005
    Publication date: May 3, 2007
    Applicant: EM4, Inc.
    Inventors: Alex Rosiewicz, Michio Matsuki, Ninghui Zhu
  • Patent number: 6844992
    Abstract: An opto-mechanical platform for supporting truncated optical elements having at least one substantially flat side surface is disclosed. In one particular exemplary embodiment, the opto-mechanical platform may be realized as an apparatus for supporting truncated optical elements having at least one substantially flat side surface. Such an apparatus may comprise a platform having a substantially flat surface area for supporting the substantially flat side surface of the truncated optical elements. Such an apparatus may also comprise at least one substantially vertical wall formed on at least a portion of the platform for providing mechanical rigidity to the platform.
    Type: Grant
    Filed: March 18, 2003
    Date of Patent: January 18, 2005
    Assignee: Confluent Photonics Corporation
    Inventors: Thomas A. Schaefer, Gregory G. Cappiello, Ninghui Zhu, Kurt E. Abdelmaseh, Evgueni V. Babenko, William J. Hubbard, Kevin J. McIntyre, Brian J. McKeen, Paul Ouellette, Andrew Radl, Dick Rolfe
  • Patent number: 6741408
    Abstract: A wavelength division multiplexer (WDM) including a support structure that is coupled to at least one optical component. A diffraction grating is optically coupled to at least one optical component coupled to the at least one optical component. A frame is coupled to the diffraction grating. Pins may be coupled between the support structure and the frame to substantially thermally isolate the support structure from the frame. The pins may be substantially geometrically equally spaced and have approximately the same exposed length extending from the lens barrel. The pins may have the same coefficient of thermal expansion as the support structure.
    Type: Grant
    Filed: December 29, 2000
    Date of Patent: May 25, 2004
    Assignee: Confluent Photonics Corporation
    Inventors: Jim Beattie, Ian Turner, Ninghui Zhu
  • Publication number: 20030179472
    Abstract: An opto-mechanical platform for supporting truncated optical elements having at least one substantially flat side surface is disclosed. In one particular exemplary embodiment, the opto-mechanical platform may be realized as an apparatus for supporting truncated optical elements having at least one substantially flat side surface. Such an apparatus may comprise a platform having a substantially flat surface area for supporting the substantially flat side surface of the truncated optical elements. Such an apparatus may also comprise at least one substantially vertical wall formed on at least a portion of the platform for providing mechanical rigidity to the platform.
    Type: Application
    Filed: March 18, 2003
    Publication date: September 25, 2003
    Inventors: Thomas A. Schaefer, Gregory G. Cappiello, Ninghui Zhu, Kurt E. Abdelmaseh, Evgueni V. Babenko, William J. Hubbard, Kevin J. McIntyre, Brian J. McKeen, Paul Ouellette, Andrew Radl, Dick Rolfe
  • Publication number: 20020181128
    Abstract: A wavelength division multiplexer (WDM) including a support structure that is coupled to at least one optical component. A diffraction grating is optically coupled to at least one optical component coupled to the at least one optical component. A frame is coupled to the diffraction grating. Pins may be coupled between the support structure and the frame to substantially thermally isolate the support structure from the frame. The pins may be substantially geometrically equally spaced and have approximately the same exposed length extending from the lens barrel. The pins may have the same coefficient of thermal expansion as the support structure.
    Type: Application
    Filed: December 29, 2000
    Publication date: December 5, 2002
    Inventors: Jim Beattie, Ian Turner, Ninghui Zhu
  • Patent number: 6449097
    Abstract: An improved diffraction grating for wavelength division multiplexing/demultiplexing devices is disclosed. The improved diffraction grating has a glass substrate, a polymer grating layer located adjacent to the glass substrate, and a metal coating layer located adjacent to the polymer grating layer. The improvement comprises a polymer coating layer located adjacent to the metal coating layer, and a glass cover located adjacent to the polymer coating layer, wherein the polymer coating layer and the glass cover compensate for thermal characteristics associated with the polymer grating layer and the glass substrate, respectively.
    Type: Grant
    Filed: June 5, 2000
    Date of Patent: September 10, 2002
    Assignee: Lightchip, Inc.
    Inventors: Ninghui Zhu, Ian Turner, Yuri A. Yudin, Mikhail N. Sokolskiy, Robert K. Wade