Patents by Inventor Ajmal Mohamed

Ajmal Mohamed 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).

  • Optical probe for measuring physical and chemical characteristics of a medium during flow
    Patent number: 9097682
    Abstract: An optical probe for measuring physical and chemical characteristics of a transparent fluid medium during flow comprises two fingers parallel to one another and to the flow. Each finger consists of a solid bar of transparent material, in which a light beam propagates and is reflected on an end face of the bar, said face being situated upstream in the flow. Such an optical probe may be reduced in size, and provides results which are less sensitive to disturbances of the flow that are caused by the probe itself.
    Type: Grant
    Filed: December 12, 2011
    Date of Patent: August 4, 2015
    Assignee: ONERA (Office National d'Etudes et de Recherches Aerospatiales)
    Inventors: Ajmal Mohamed, Raphaël Vallon
  • OPTICAL PROBE FOR MEASURING PHYSICAL AND CHEMICAL CHARACTERISTICS OF A MEDIUM DURING FLOW
    Publication number: 20130258344
    Abstract: An optical probe for measuring physical and chemical characteristics of a transparent fluid medium during flow comprises two fingers parallel to one another and to the flow. Each finger consists of a solid bar of transparent material, in which a light beam propagates and is reflected on an end face of the bar, said face being situated upstream in the flow. Such an optical probe may be reduced in size, and provides results which are less sensitive to disturbances of the flow that are caused by the probe itself.
    Type: Application
    Filed: December 12, 2011
    Publication date: October 3, 2013
    Applicant: ONERA (OFFICE NATIONAL D'ETUDES ET DE RECHERCHES AEROSPATIALES
    Inventors: Ajmal Mohamed, Raphaël Vallon
  • Optical parametric oscillator with achromatic phase-maintaining pump return
    Patent number: 8279517
    Abstract: The invention applies to doubly resonant optical parametric oscillators comprising a non-linear crystal (4) through which pass a pump laser beam (fp), a signal beam (fs), and a complementary beam (fc), and a device (5) that totally or partially reflects said beams emanating from the crystal such that, after reflection, they generate between them a relative phase-shifting value ??ar for a given functioning mode independent of the signal frequency or complementary frequency, and is characterized in that the reflecting device (5) is a metallic minor, or a combination of two scattering mirrors and a multilayer dielectric mirror placed downstream.
    Type: Grant
    Filed: June 27, 2007
    Date of Patent: October 2, 2012
    Assignee: Office National d'etudes et de Recherches Aerospatiales (Onera)
    Inventors: Michel Lefebvre, Ajmal Mohamed, Antoine Godard
  • Optical parametric oscillator with achromatic phase-maintaining pump return
    Publication number: 20100226003
    Abstract: The invention applies to doubly resonant optical parametric oscillators comprising a non-linear crystal (4) through which pass a pump laser beam (fp), a signal beam (fs), and a complementary beam (fc), and a device (5) that totally or partially reflects said beams emanating from the crystal such that, after reflection, they generate between them a relative phase-shifting value ??ar for a given functioning mode independent of the signal frequency or complementary frequency, and is characterized in that the reflecting device (5) is a metallic minor, or a combination of two scattering mirrors and a multilayer dielectric mirror placed downstream.
    Type: Application
    Filed: June 27, 2007
    Publication date: September 9, 2010
    Inventors: Michel Lefebvre, Ajmal Mohamed, Antoine Godard