Patents by Inventor Philippe Bado
Philippe Bado 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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Patent number: 8077748Abstract: A laser includes a gain stage and a pump stage. The gain stage includes a fiber link that terminates at a pair of ends and includes a doped fiber. The pump stage includes a glass volume, the glass volume having a pair of fiber interface ports at which the pair of ends of the fiber link are disposed, respectively, for attachment of the gain stage and the pump stage in a ring laser assembly. The pump stage includes a plurality of intrinsic waveguides defined in the glass volume and disposed along in-bulk propagation paths within the glass volume for light travel through the ring laser assembly.Type: GrantFiled: January 22, 2010Date of Patent: December 13, 2011Assignee: Translume, Inc.Inventors: Mark A. Dugan, Ali Said, Philippe Bado
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Patent number: 7841544Abstract: A fuel injector and a method for manufacturing a fuel injector are described. The fuel injector includes a glass substrate and a nozzle enclosed within the glass substrate. The nozzle includes at least one injection hole. The method of manufacturing a fuel injector includes defining a shape of at least one injection hole in a glass substrate to obtain an at least one outlined injection hole and etching the at least one outlined injection hole to obtain the at least one injection hole.Type: GrantFiled: October 31, 2008Date of Patent: November 30, 2010Assignee: Translume, Inc.Inventors: Thomas F. Haddock, Philippe Bado, Mark Allen Dugan, Ali Said
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Patent number: 7830509Abstract: A method continuously monitors variations in the size of particles present in a fluid on a real time basis. The method includes passing one or more optical signal through the fluid such as engine oil. The variation (attenuation or enhancement) in the intensity of the optical signal is continuously measured with respect to time. In an embodiment, the method enables monitoring of the amount, size and onset of particle agglomeration using single or multiple wavelengths as interrogating optical signal(s). An exemplary embodiment is provided for monitoring of the amount, size and onset of soot particle agglomeration in engine oil using single or multiple wavelengths as interrogating optical signal(s).Type: GrantFiled: December 17, 2009Date of Patent: November 9, 2010Assignee: Translume, Inc.Inventors: Thomas F. Haddock, Mark A. Dugan, Ali Said, Philippe Bado
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Patent number: 7716830Abstract: A method and apparatus for manufacturing a fuel injector comprising a glass substrate and a nozzle enclosed within the glass substrate, wherein the nozzle comprises at least one injection hole is provided. The method of manufacturing the fuel injector comprises defining (105) a shape of at least one injection hole in a glass substrate to obtain an at least one outlined injection hole and etching (110) the at least one outlined injection hole to obtain the at least one injection hole.Type: GrantFiled: October 11, 2005Date of Patent: May 18, 2010Assignee: Translume, Inc.Inventors: Thomas F. Haddock, Philippe Bado, Mark Allen Dugan, Ali Said
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Patent number: 7679742Abstract: The present invention relates to a method, system and apparatus for continuously monitoring variations in the size of particles present in a fluid on a real time basis. The method comprises of passing one or more optical signal through the fluid such as engine oil. The variation (attenuation or enhancement) in the intensity of the optical signal is continuously measured with respect to time. In an embodiment, the method, system and apparatus of the present invention enable monitoring of the amount, size and onset of particle agglomeration using single or multiple wavelengths as interrogating optical signal(s). An exemplary embodiment is provided for monitoring of the amount, size and onset of soot particle agglomeration in engine oil using single or multiple wavelengths as interrogating optical signal(s).Type: GrantFiled: February 28, 2007Date of Patent: March 16, 2010Assignee: Translume, Inc.Inventors: Thomas F. Haddock, Mark Allen Dugan, Ali Said, Philippe Bado
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Publication number: 20090145975Abstract: A fuel injector and a method for manufacturing a fuel injector are described. The fuel injector includes a glass substrate and a nozzle enclosed within the glass substrate. The nozzle includes at least one injection hole. The method of manufacturing a fuel injector includes defining a shape of at least one injection hole in a glass substrate to obtain an at least one outlined injection hole and etching the at least one outlined injection hole to obtain the at least one injection hole.Type: ApplicationFiled: October 31, 2008Publication date: June 11, 2009Applicant: Translume Inc.Inventors: Thomas F. Haddock, Philippe Bado, Mark Allen Dugan, Ali Said
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Patent number: 7450235Abstract: The invention relates to an apparatus and a method to monitor the condition of a fluid by measuring multiple optical properties of the fluid. The apparatus comprises of a body 105, at least one fluidic cavity 110 to capture a fluid sample, at least one light source 115 to emit an optical signal and at least one optical detector 120 to detect the optical signal. The fluid sample is collected continuously from a path of a fluid flow and multiple optical properties are measured in real time to determine the condition of the fluid. The apparatus is installed in-line with the path of the fluid flow in the system for which the fluid is being used and monitored. The apparatus avoids environmental contamination and wastage of the fluid sample by returning the fluid sample back into the fluid flow.Type: GrantFiled: January 18, 2005Date of Patent: November 11, 2008Assignee: Translume, Inc.Inventors: Ali A. Said, Philippe Bado, Mark Allen Dugan
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Publication number: 20080204749Abstract: The present invention relates to a method, system and apparatus for continuously monitoring variations in the size of particles present in a fluid on a real time basis. The method comprises of passing one or more optical signal through the fluid such as engine oil. The variation (attenuation or enhancement) in the intensity of the optical signal is continuously measured with respect to time. In an embodiment, the method, system and apparatus of the present invention enable monitoring of the amount, size and onset of particle agglomeration using single or multiple wavelengths as interrogating optical signal(s). An exemplary embodiment is provided for monitoring of the amount, size and onset of soot particle agglomeration in engine oil using single or multiple wavelengths as interrogating optical signal(s).Type: ApplicationFiled: February 28, 2007Publication date: August 28, 2008Inventors: Thomas F. Haddock, Mark Allen Dugan, Ali Said, Philippe Bado
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Patent number: 7409118Abstract: A monolithic device for determining a translation, the monolithic device being fabricated from a single continuous piece of a glass substrate. The monolithic device comprises at least one frame, a moving platform linked to the at least one frame and an optical transducer. The at least one frame is fabricated from the glass substrate. The moving platform is fabricated from the glass substrate, wherein the moving platform is linked to the at least one frame via at least one elastic hinge. The at least one elastic hinge is also fabricated from the glass substrate. The optical transducer is imbedded into the moving platform and the at least one frame.Type: GrantFiled: April 12, 2006Date of Patent: August 5, 2008Assignee: Translume, Inc.Inventors: Ali Said, Philippe Bado, Mark Allen Dugan, Yves Bellouard
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Patent number: 7391947Abstract: A method of writing a waveguide using an ultrashort laser beam is disclosed. The laser beam is directed to a substrate in transverse relation to a waveguide propagation axis to generate an ultrashort laser pulse focus in the substrate. A refractive index is modified in an affected region in the substrate along the waveguide propagation axis via the ultrashort laser pulse focus, and the ultrashort laser pulse focus is moved in a direction other than the waveguide propagation axis to generate a widened affected region along the waveguide propagation axis. The widened affected region has a cross-sectional profile capable of supporting a fundamental mode of a signal having a telecommunications infrared (TIR) wavelength, while the affected region has a cross-sectional profile incapable of supporting the fundamental mode of the signal having the TIR wavelength.Type: GrantFiled: June 13, 2005Date of Patent: June 24, 2008Assignee: Translume, Inc.Inventors: Philippe Bado, Ali A. Said, Mark A. Dugan, Thomas Sosnowski
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Patent number: 7329050Abstract: Disclosed herein are an optical device, such as a connector or mode enlarger, and a method of fabricating the device. The disclosed device includes an optical medium having a first face for, e.g., permanent attachment to a waveguide, a second face for, e.g., a non-permanent connection, and a region between the first and second faces. A non-fiber, connector waveguide is disposed in the region to propagate the single-mode signal from the first face to the second face. The connector waveguide is optically matched to the waveguide at the first face to receive the single-mode signal carried by the waveguide. The connector waveguide includes a taper section such that the connector waveguide is enlarged at the second face to support an expanded beam of the single-mode signal for propagation through the non-permanent connection.Type: GrantFiled: March 10, 2006Date of Patent: February 12, 2008Assignee: Translume, Inc.Inventors: Mark A. Dugan, Ali A. Said, Philippe Bado
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Patent number: 7324207Abstract: An optical device is useful for analyzing an optical signal pulse to determine information related to the pulse, such as information related to its temporal coherence length. The optical device generally includes a plurality of interferometric devices to generate one or more respective interference patterns from the optical signal pulse, and a plurality of detectors associated with each respective interferometric device to receive the one or more respective interference patterns. At least one of the plurality of interferometric devices is disposed in a glass substrate. The optical device may be integrated in an optical correlation system having an analyzer coupled to the plurality of detectors to determine the temporal coherence length or other pulse-related information for the optical signal pulse based on the received interference patterns.Type: GrantFiled: April 22, 2005Date of Patent: January 29, 2008Assignee: Translume, Inc.Inventors: Sean Kirkpatrick, Ali A. Said, Mark Allen Dugan, Thomas Sosnowski, Philippe Bado
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Patent number: 7294454Abstract: A method of writing a waveguide using an ultrashort laser beam is disclosed. The laser beam is directed to a substrate in transverse relation to a waveguide propagation axis to generate an ultrashort laser pulse focus in the substrate. A refractive index is modified in an affected region in the substrate along the waveguide propagation axis via the ultrashort laser pulse focus, and the ultrashort laser pulse focus is moved in a direction other than the waveguide propagation axis to generate a widened affected region along the waveguide propagation axis. The widened affected region has a cross-sectional profile capable of supporting a fundamental mode of a signal having a telecommunications infrared (TIR) wavelength, while the affected region has a cross-sectional profile incapable of supporting the fundamental mode of the signal having the TIR wavelength.Type: GrantFiled: September 30, 2003Date of Patent: November 13, 2007Assignee: Translume, Inc.Inventors: Ali A. Said, Mark A. Dugan, Thomas Sosnowski, Philippe Bado
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Publication number: 20070241211Abstract: A method and apparatus for manufacturing a fuel injector comprising a glass substrate and a nozzle enclosed within the glass substrate, wherein the nozzle comprises at least one injection hole is provided. The method of manufacturing the fuel injector comprises defining (105) a shape of at least one injection hole in a glass substrate to obtain an at least one outlined injection hole and etching (110) the at least one outlined injection hole to obtain the at least one injection hole.Type: ApplicationFiled: October 11, 2005Publication date: October 18, 2007Inventors: Thomas Haddock, Philippe Bado, Mark Dugan, Ali Said
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Publication number: 20070242916Abstract: A monolithic device for determining a translation, the monolithic device being fabricated from a single continuous piece of a glass substrate. The monolithic device comprises at least one frame, a moving platform linked to the at least one frame and an optical transducer. The at least one frame is fabricated from the glass substrate. The moving platform is fabricated from the glass substrate, wherein the moving platform is linked to the at least one frame via at least one elastic hinge. The at least one elastic hinge is also fabricated from the glass substrate. The optical transducer is imbedded into the moving platform and the at least one frame.Type: ApplicationFiled: April 12, 2006Publication date: October 18, 2007Inventors: Ali Said, Philippe Bado, Mark Dugan, Yves Bellouard
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Publication number: 20050029240Abstract: Disclosed herein is a system useful for machining a workpiece, and having a first light source to generate a first beam for application to a first portion of the workpiece and ablation thereof, a second light source to generate a second beam for application to a second portion of the workpiece and heating thereof, and a positioning apparatus to direct the first and second beams to the first and second portions of the workpiece, respectively. The first light source may include a machining laser, and the second light source include a softening laser. A method of machining the workpiece includes the steps of removing a first portion of the workpiece by directing the first beam to the workpiece wherein the first beam has an intensity sufficient to ablate material from the workpiece, and heating a second portion of the workpiece to a ductile state by directing the second beam to the workpiece.Type: ApplicationFiled: August 9, 2004Publication date: February 10, 2005Inventors: Mark Dugan, Ali Said, Philippe Bado
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Patent number: 6768850Abstract: A method of using a beam of ultra-short laser pulses, having pulse durations below 10 picoseconds, to adjust an optical characteristic within an optical medium is provided. The beams would have an intensity above a threshold for altering the index of refraction of a portion of the optical medium. The beams could be selectively applied to the optical medium and any structures formed or existing therein. Thus, the beam could be moved within a waveguide in the optical medium to alter the index of refraction of the waveguide forming any number of different longitudinal index of refraction profiles. The beam could also be moved within the optical medium near the waveguide to alter an effective index of refraction of a signal traveling within the waveguide. The techniques described can be used to improve, alter or correct performance of waveguide-based optical devices, such as arrayed waveguide gratings and cascaded planar waveguide interferometers.Type: GrantFiled: August 16, 2001Date of Patent: July 27, 2004Assignee: Translume, Inc.Inventors: Mark Dugan, William Clark, Ali A. Said, Robert L. Maynard, Philippe Bado
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Publication number: 20030035640Abstract: A method of using a beam of ultra-short laser pulses, having pulse durations below 10 picoseconds, to adjust an optical characteristic within an optical medium is provided. The beams would have an intensity above a threshold for altering the index of refraction of a portion of the optical medium. The beams could be selectively applied to the optical medium and any structures formed or existing therein. Thus, the beam could be moved within a waveguide in the optical medium to alter the index of refraction of the waveguide forming any number of different longitudinal index of refraction profiles. The beam could also be moved within the optical medium near the waveguide to alter an effective index of refraction of a signal traveling within the waveguide. The techniques described can be used to improve, alter or correct performance of waveguide-based optical devices, such as arrayed waveguide gratings and cascaded planar waveguide interferometers.Type: ApplicationFiled: August 16, 2001Publication date: February 20, 2003Inventors: Mark Dugan, William Clark, Ali A. Said, Robert L. Maynard, Philippe Bado
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Patent number: 5258612Abstract: In a pump/probe experiment, information about an event is detected and correlated with an accumulatable quantity representing the elapsed time interval between the arrival of the pump and probe pulses at the experiment. The accumulatable quantity is used to configure the pump and probe sources to eliminate temporal resolution problems caused by pulse timing jitter, the complexity of amplification, continuum generation, and subsequent reamplification, as well as data acquisition rate limitations. Two pulse sources serve as pump and probe pulses respectively. Each pulse is directed at the experiment. A portion of each pump pulse is diverted to a detector before it reaches the experiment, and a portion of each probe pulse is diverted to another detector. The pump and probe pulses are no-coincident in time at the experiment. Quantities related to the time difference and the information imposed on the probe pulse by the experiment are accumulated to obtain data about the temporal evolution of the event.Type: GrantFiled: April 1, 1992Date of Patent: November 2, 1993Inventors: William G. Clark, Philippe Bado, Edward F. Gabl
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Patent number: 4910458Abstract: An electro-optic sampler utilizes a Pockels cell comprising an electro-optic crystal and a separate, removable sample carrier having an electrical transmission line affixed thereto to provide an electric field accessible to the optical sampling pulses. In the present system, a device under test is bonded to the removable sample carrier. The electro-optic crystal is not bonded to the carrier. Rather, means are provided for the electro-optic crystal to releasably engage the sample carrier and its affixed electrical transmission lines. Upon completion of a test, the carrier may be removed from the system with the device-under-test affixed thereto, and the same electro-optic crystal may be utilized in conjunction with another removable sample carrier having another device under test affixed thereto.Type: GrantFiled: March 24, 1987Date of Patent: March 20, 1990Assignees: Princeton Applied Research Corp., University of RochesterInventors: Keith W. Forsyth, Philippe Bado