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).
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Publication number: 20210215602Abstract: 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: ApplicationFiled: October 28, 2020Publication date: July 15, 2021Inventors: Petros Kotidis, Erik Deutsch, Ninghui Zhu, Daniel J. Cavicchio, JR.
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Patent number: 10830697Abstract: 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: GrantFiled: July 17, 2018Date of Patent: November 10, 2020Assignee: Block Engineering, LLCInventors: Petros Kotidis, Erik Deutsch, Ninghui Zhu, Dan Cavicchio
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Publication number: 20180321144Abstract: 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: ApplicationFiled: July 17, 2018Publication date: November 8, 2018Inventors: Petros Kotidis, Erik Deutsch, Ninghui Zhu, Dan Cavicchio
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Patent number: 10031077Abstract: 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: GrantFiled: March 25, 2016Date of Patent: July 24, 2018Assignee: Block Engineering, LLCInventors: Petros Kotidis, Erik Deutsch, Ninghui Zhu, Dan Cavicchio
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Publication number: 20160209325Abstract: 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: ApplicationFiled: March 25, 2016Publication date: July 21, 2016Inventors: Petros Kotidis, Erik Deutsch, Ninghui Zhu, Dan Cavicchio
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Patent number: 9329085Abstract: 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: GrantFiled: June 4, 2014Date of Patent: May 3, 2016Assignee: Block Engineering, LLCInventors: Petros Kotidis, Erik Deutsch, Ninghui Zhu, Dan Cavicchio
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Publication number: 20150292947Abstract: 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: ApplicationFiled: June 4, 2014Publication date: October 15, 2015Inventors: Petros Kotidis, Erik Deutsch, Ninghui Zhu, Dan Cavicchio
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Patent number: 8780347Abstract: 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: GrantFiled: June 13, 2011Date of Patent: July 15, 2014Assignee: Block Engineering, LLCInventors: Petros Kotidis, Erik Deutsch, Ninghui Zhu, Dan Cavicchio
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Publication number: 20120033220Abstract: 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: ApplicationFiled: June 13, 2011Publication date: February 9, 2012Applicant: BLOCK ENGINEERING, LLCInventors: Petros Kotidis, Erik Deutsch, Ninghui Zhu, Adam Erlich, Dan Cavicchio, John Coates, John Heanue
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Publication number: 20080260330Abstract: 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: ApplicationFiled: April 19, 2007Publication date: October 23, 2008Inventors: Alex Rosiewicz, Ninghui Zhu
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Patent number: 7309175Abstract: 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: GrantFiled: July 28, 2006Date of Patent: December 18, 2007Assignee: EM4, Inc.Inventors: Alex Rosiewicz, Ninghui Zhu, Michio Matsuki
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Publication number: 20070098332Abstract: 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: ApplicationFiled: October 28, 2005Publication date: May 3, 2007Applicant: EM4, Inc.Inventors: Alex Rosiewicz, Michio Matsuki, Ninghui Zhu
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Patent number: 6844992Abstract: 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: GrantFiled: March 18, 2003Date of Patent: January 18, 2005Assignee: Confluent Photonics CorporationInventors: 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
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Patent number: 6741408Abstract: 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: GrantFiled: December 29, 2000Date of Patent: May 25, 2004Assignee: Confluent Photonics CorporationInventors: Jim Beattie, Ian Turner, Ninghui Zhu
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Publication number: 20030179472Abstract: 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: ApplicationFiled: March 18, 2003Publication date: September 25, 2003Inventors: 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
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Publication number: 20020181128Abstract: 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: ApplicationFiled: December 29, 2000Publication date: December 5, 2002Inventors: Jim Beattie, Ian Turner, Ninghui Zhu
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Patent number: 6449097Abstract: 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: GrantFiled: June 5, 2000Date of Patent: September 10, 2002Assignee: Lightchip, Inc.Inventors: Ninghui Zhu, Ian Turner, Yuri A. Yudin, Mikhail N. Sokolskiy, Robert K. Wade