Patents by Inventor Otho E. Ulrich
Otho E. Ulrich 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: 9680280Abstract: An electronic circuit for controlling a laser system consisting of a pulse source and high power fiber amplifier is disclosed. The circuit is used to control the gain of the high power fiber amplifier system so that the amplified output pulses have predetermined pulse energy as the pulse width and repetition rate of the oscillator are varied. This includes keeping the pulse energy constant when the pulse train is turned on. The circuitry is also used to control the temperature of the high power fiber amplifier pump diode such that the wavelength of the pump diode is held at the optimum absorption wavelength of the fiber amplifier as the diode current is varied. The circuitry also provides a means of protecting the high power fiber amplifier from damage due to a loss of signal from the pulse source or from a pulse-source signal of insufficient injection energy.Type: GrantFiled: August 15, 2013Date of Patent: June 13, 2017Assignee: IMRA AMERICA, INC.Inventors: Salvatore F. Nati, Otho E. Ulrich, Jr., Gyu C. Cho, Wayne A. Gillis, Donald J. Harter, Mark Bendett, Ingmar Hartl
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Patent number: 8873594Abstract: A modular ultrafast pulse laser system is constructed of individually pre-tested components manufactured as modules. The individual modules include an oscillator, pre-amplifier and power amplifier stages, a non-linear amplifier, and a stretcher and compressor. The individual modules can typically be connected by means of simple fiber splices.Type: GrantFiled: April 6, 2010Date of Patent: October 28, 2014Assignee: IMRA America, Inc.Inventors: Zhenlin Liu, Gyu Choen Cho, Xinhua Gu, Otho E. Ulrich, Jr., Donald J. Harter
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Publication number: 20130329279Abstract: An electronic circuit for controlling a laser system consisting of a pulse source and high power fiber amplifier is disclosed. The circuit is used to control the gain of the high power fiber amplifier system so that the amplified output pulses have predetermined pulse energy as the pulse width and repetition rate of the oscillator are varied. This includes keeping the pulse energy constant when the pulse train is turned on. The circuitry is also used to control the temperature of the high power fiber amplifier pump diode such that the wavelength of the pump diode is held at the optimum absorption wavelength of the fiber amplifier as the diode current is varied. The circuitry also provides a means of protecting the high power fiber amplifier from damage due to a loss of signal from the pulse source or from a pulse-source signal of insufficient injection energy.Type: ApplicationFiled: August 15, 2013Publication date: December 12, 2013Applicant: IMRA AMERICA, INC.Inventors: Salvatore F. NATI, Otho E. ULRICH, JR., Gyu C. CHO, JR., Wayne A. GILLIS, JR., Donald J. HARTER, JR., Mark BENDETT, JR., Ingmar HARTL, JR.
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Patent number: 8537459Abstract: An electronic circuit for controlling a laser system consisting of a pulse source and high power fiber amplifier is disclosed. The circuit is used to control the gain of the high power fiber amplifier system so that the amplified output pulses have predetermined pulse energy as the pulse width and repetition rate of the oscillator are varied. This includes keeping the pulse energy constant when the pulse train is turned on. The circuitry is also used to control the temperature of the high power fiber amplifier pump diode such that the wavelength of the pump diode is held at the optimum absorption wavelength of the fiber amplifier as the diode current is varied. The circuitry also provides a means of protecting the high power fiber amplifier from damage due to a loss of signal from the pulse source or from a pulse-source signal of insufficient injection energy.Type: GrantFiled: April 30, 2012Date of Patent: September 17, 2013Assignee: IMRA America, Inc.Inventors: Salvatore F. Nati, Otho E. Ulrich, Jr., Gyu Cheon Cho, Wayne A. Gillis, Donald J. Harter, Mark Bendett, Ingmar Hartl
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Publication number: 20120212803Abstract: An electronic circuit for controlling a laser system consisting of a pulse source and high power fiber amplifier is disclosed. The circuit is used to control the gain of the high power fiber amplifier system so that the amplified output pulses have predetermined pulse energy as the pulse width and repetition rate of the oscillator are varied. This includes keeping the pulse energy constant when the pulse train is turned on. The circuitry is also used to control the temperature of the high power fiber amplifier pump diode such that the wavelength of the pump diode is held at the optimum absorption wavelength of the fiber amplifier as the diode current is varied. The circuitry also provides a means of protecting the high power fiber amplifier from damage due to a loss of signal from the pulse source or from a pulse-source signal of insufficient injection energy.Type: ApplicationFiled: April 30, 2012Publication date: August 23, 2012Applicant: IMRA AMERICA, INC.Inventors: Salvatore F. NATI, Otho E. ULRICH, JR., Gyu Cheon CHO, Wayne A. GILLIS, Donald J. HARTER, Mark BENDETT, Ingmar HARTL
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Publication number: 20100188736Abstract: A modular ultrafast pulse laser system is constructed of individually pre-tested components manufactured as modules. The individual modules include an oscillator, pre-amplifier and power amplifier stages, a non-linear amplifier, and a stretcher and compressor. The individual modules can typically be connected by means of simple fiber splices.Type: ApplicationFiled: April 6, 2010Publication date: July 29, 2010Applicant: IMRA AMERICA, INC.Inventors: Zhenlin LIU, Gyu Choen CHO, Xinhua GU, Otho E. ULRICH, JR., Donald J. HARTER
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Patent number: 7711013Abstract: A modular ultrafast pulse laser system is constructed of individually pre-tested components manufactured as modules. The individual modules include an oscillator, pre-amplifier and power amplifier stages, a non-linear amplifier, and a stretcher and compressor. The individual modules can typically be connected by means of simple fiber splices.Type: GrantFiled: March 31, 2004Date of Patent: May 4, 2010Assignee: IMRA America, Inc.Inventors: Zhenlin Liu, Gyu Choen Cho, Xinhua Gu, Otho E. Ulrich, Jr., Donald J. Harter
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Publication number: 20100060978Abstract: An electronic circuit for controlling a laser system consisting of a pulse source and high power fiber amplifier is disclosed. The circuit is used to control the gain of the high power fiber amplifier system so that the amplified output pulses have predetermined pulse energy as the pulse width and repetition rate of the oscillator are varied. This includes keeping the pulse energy constant when the pulse train is turned on. The circuitry is also used to control the temperature of the high power fiber amplifier pump diode such that the wavelength of the pump diode is held at the optimum absorption wavelength of the fiber amplifier as the diode current is varied. The circuitry also provides a means of protecting the high power fiber amplifier from damage due to a loss of signal from the pulse source or from a pulse-source signal of insufficient injection energy.Type: ApplicationFiled: November 16, 2009Publication date: March 11, 2010Applicant: IMRA AMERICA, INC.Inventors: Salvatore F. NATI, Otho E. ULRICH, JR., Gyu Choen CHO, Wayne A. GILLIS, Donald J. HARTER, Mark BENDETT, Ingmar HARTL
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Patent number: 7626758Abstract: An electronic circuit for controlling a laser system consisting of a pulse source and high power fiber amplifier is disclosed. The circuit is used to control the gain of the high power fiber amplifier system so that the amplified output pulses have predetermined pulse energy as the pulse width and repetition rate of the oscillator are varied. This includes keeping the pulse energy constant when the pulse train is turned on. The circuitry is also used to control the temperature of the high power fiber amplifier pump diode such that the wavelength of the pump diode is held at the optimum absorption wavelength of the fiber amplifier as the diode current is varied. The circuitry also provides a means of protecting the high power fiber amplifier from damage due to a loss of signal from the pulse source or from a pulse-source signal of insufficient injection energy.Type: GrantFiled: July 29, 2008Date of Patent: December 1, 2009Assignee: IMRA America, Inc.Inventors: Salvatore F. Nati, Otho E. Ulrich, Jr., Gyu Choen Cho, Wayne A. Gillis, Donald J. Harter, Mark Bendett, Ingmar Hartl
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Patent number: 7505196Abstract: An electronic circuit for controlling a laser system consisting of a pulse source and high power fiber amplifier is disclosed. The circuit is used to control the gain of the high power fiber amplifier system so that the amplified output pulses have predetermined pulse energy as the pulse width and repetition rate of the oscillator are varied. This includes keeping the pulse energy constant when the pulse train is turned on. The circuitry is also used to control the temperature of the high power fiber amplifier pump diode such that the wavelength of the pump diode is held at the optimum absorption wavelength of the fiber amplifier as the diode current is varied. The circuitry also provides a means of protecting the high power fiber amplifier from damage due to a loss of signal from the pulse source or from a pulse-source signal of insufficient injection energy.Type: GrantFiled: March 31, 2004Date of Patent: March 17, 2009Assignee: IMRA America, Inc.Inventors: Salvatore F. Nati, Otho E. Ulrich, Jr., Gyu Choen Cho, Wayne A. Gillis, Donald J. Harter, Mark Bendett, Ingmar Hartl
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Publication number: 20080285118Abstract: An electronic circuit for controlling a laser system consisting of a pulse source and high power fiber amplifier is disclosed. The circuit is used to control the gain of the high power fiber amplifier system so that the amplified output pulses have predetermined pulse energy as the pulse width and repetition rate of the oscillator are varied. This includes keeping the pulse energy constant when the pulse train is turned on. The circuitry is also used to control the temperature of the high power fiber amplifier pump diode such that the wavelength of the pump diode is held at the optimum absorption wavelength of the fiber amplifier as the diode current is varied. The circuitry also provides a means of protecting the high power fiber amplifier from damage due to a loss of signal from the pulse source or from a pulse-source signal of insufficient injection energy.Type: ApplicationFiled: July 29, 2008Publication date: November 20, 2008Inventors: Salvatore F. Nati, Otho E. Ulrich, JR., Gyu Choen Cho, Wayne A. Gillis, Donald J. Harter, Mark Bendett, Ingmar Hartl
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Publication number: 20030008314Abstract: A method for performing a rapid, homogenous assays for monitoring the reactions of a binding target, by immobilizing a fluorescent-capable chelate complex that is derivatized so as to posses recognition binding ligands, labeling the complex with a labeled second chelator that is added to the assay thereby forming a fluorescent mixed chelate, and measuring the fluorescent mixed chelate, whereby the measurement of the label enable monitoring of the reaction of the binding target. A rapid assay for performing the above method including a first chelating molecule, a fluorescent-capable ion complexed with the first chelating molecule, a second chelating molecule for reacting with the fluorescent-capable ion complexed with the first chelating molecule, and a measuring device for measuring fluorescent resulting from the second is chelating molecule reacting with the fluorescent-capable ion complexed with the first chelating molecule.Type: ApplicationFiled: June 28, 2002Publication date: January 9, 2003Inventors: Eric M. Priuska, Richard H. Smith, Judith L. Erb, James G. Downward, Otho E. Ulrich
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Patent number: 4917014Abstract: A system for laser-ignition of explosives or the like includes a laser system coupled to an optical fiber for conducting light energy to a window positioned at an end of the fiber remote from the laser system. An explosive charge is contained within an initiator housing on a side of the window remote from the adjacent fiber end. A dichroic film is positioned at the window surface adjacent to the explosive charge, and is constructed to reflect light energy within one wavelength range and transmit light energy within another wavelength range. The laser system is controlled for selectively transmitting light energy at the one wavelength range to test continuity of the laser-fiber-initiator light path as a function of reflections from the dichroic film, and at the other wavelength range to ignite the explosive charge. In one embodiment of the invention, the dichroic film takes the form of a transparent disc having the film deposited thereon.Type: GrantFiled: April 24, 1989Date of Patent: April 17, 1990Assignee: KMS Fusion, Inc.Inventors: Bruce Loughry, Otho E. Ulrich
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Patent number: 4096876Abstract: A condensate controller comprising an inverted bucket steam trap having a blow-thru tube for continuously discharging non-condensable gas, flash steam and perhaps a limited amount of live steam, at a controlled rate. The condensate controller has a chamber located below and isolated from the compartment in which the inverted bucket is located. The chamber receives the incoming condensate and vapor from the inlet pipe so that the condensate level in the inlet pipe can be lowered and so that pressure surges in the inlet pipe can be cushioned and absorbed. The blow-thru pipe has a concavo-convex deflector for improving the separation of liquid from the vapor that flows through the blow-thru conduit.Type: GrantFiled: July 2, 1976Date of Patent: June 27, 1978Assignee: Armstrong Machine WorksInventor: Otho E. Ulrich