Patents by Inventor Ronald Holzwarth
Ronald Holzwarth 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: 20130161538Abstract: The invention relates to an optical arrangement (20) and to a method of examining or processing an object (46). Here, a first laser pulse with a first central wavelength and a second laser pulse with a second central wavelength different from the first central wavelength are generated. Both pulses are superimposed in or on the object (46) such that multi-photon absorption takes place there with the involvement of at least one photon of the first laser pulse and at least one photon of the second laser pulse.Type: ApplicationFiled: December 21, 2012Publication date: June 27, 2013Inventors: Michael MEI, Ronald HOLZWARTH, Marc FISCHER
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Publication number: 20130163914Abstract: The invention relates to a system (1) for generating a (high-frequency) beat signal. The system comprises a first light source (3) with a multimode spectrum, a second light source (4) and a coupler and filter arrangement (5) with a first port (6) for coupling in light from the first light source (3), and a second port (7) for coupling in light from the second light source (4). Furthermore, a detector (11) is provided to which light of both light sources (3, 4) can be supplied. The coupler and filter arrangement (5) comprises a spectral filter (20, 28) for filtering out one or several modes from the spectrum of the first light source (3), and a first fiber-optical coupler (17, 23, 26) for coupling the light of the second light source (4) and the not yet filtered or the already filtered light of the first light source (3). The coupler and filter arrangement (5) is configured to be merely fiber-optical according to the invention.Type: ApplicationFiled: December 21, 2012Publication date: June 27, 2013Inventors: Ronald HOLZWARTH, Marc FISCHER, Michael MEI
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Patent number: 8078060Abstract: Femtosecond pump/probe experiments using short X-Ray and optical pulses require precise synchronization between 100 meter-10 km separated lasers in a various experiments. For stabilization in the hundred femtosecond range a CW laser is amplitude modulated at 1-10 GHz, the signal retroreflected from the far end, and the relative phase used to correct the transit time with various implementations. For the sub-10 fsec range the laser frequency itself is upshifted 55 MHz with an acousto-optical modulator, retroreflected, upshifted again and phase compared at the sending end to a 110 MHz reference. Initial experiments indicate less than 1 fsec timing jitter. To lock lasers in the sub-10 fs range two single-frequency lasers separated by several teraHertz will be lock to a master modelocked fiber laser, transmit the two frequencies over fiber, and lock two comb lines of a slave laser to these frequencies, thus synchronizing the two modelocked laser envelopes.Type: GrantFiled: April 4, 2007Date of Patent: December 13, 2011Assignee: The Regents of The University of CaliforniaInventors: Russell B. Wilcox, Ronald Holzwarth
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Publication number: 20110205618Abstract: A device for generating or receiving electromagnetic radiation in a frequency range from 10 GHz to 100 THz is provided. The device includes a housing and a wave guide fiber leading into the housing. The wave guide fiber is adapted for guiding pulsed laser light with a first central wavelength. Within the housing, a terahertz converter is provided for generating or receiving the electromagnetic radiation in the terahertz range. The device also includes a frequency converter for converting the light exiting from the wave guide fiber to a second central wavelength being arranged between the end of the wave guide fiber and the terahertz converter in such a way that the terahertz converter is impinged by the frequency converted light.Type: ApplicationFiled: April 26, 2011Publication date: August 25, 2011Inventors: Ronald Holzwarth, Rafal Wilk
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Patent number: 7965440Abstract: A device for generating or receiving electromagnetic radiation in a frequency range from 10 GHz to 100 THz is provided. The device includes a housing and a wave guide fiber leading into the housing. The wave guide fiber is adapted for guiding pulsed laser light with a first central wavelength. Within the housing, a terahertz converter is provided for generating or receiving the electromagnetic radiation in the terahertz range. The device also includes a frequency converter for converting the light exiting from the wave guide fiber to a second central wavelength being arranged between the end of the wave guide fiber and the terahertz converter in such a way that the terahertz converter is impinged by the frequency converted light.Type: GrantFiled: May 29, 2009Date of Patent: June 21, 2011Assignee: Menlo Systems GmbHInventors: Ronald Holzwarth, Rafal Wilk
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Patent number: 7804863Abstract: The invention concerns a laser system with a frequency comb generator for generating a comb of optical frequencies having an offset frequency and a plurality of equidistant modes. The laser system further preferably includes at least one stabilizer for stabilizing the frequency comb onto a certain offset frequency and/or onto a certain mode spacing. The laser system further includes an optical amplifier for amplifying the frequency comb coupled out of the frequency comb generator, the amplification factor of this amplifier being variable; and the amplifier is followed by a Raman medium for generating a Raman shift of the frequency comb.Type: GrantFiled: May 18, 2007Date of Patent: September 28, 2010Assignee: Menlo Systems GmbHInventors: Peter Adel, Marc Fischer, Michael Mei, Ronald Holzwarth
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Patent number: 7672342Abstract: A method of generating pulsed coherent radiation, comprises the step of generating high harmonic pulses by an interaction of laser light pulses with a non-linear medium contained in a resonant cavity, wherein the non-linear medium is arranged in an environment of reduced pressure. Furthermore, a radiation source of generating pulsed coherent radiation is described, comprising a laser pulse source for generating laser light pulses, a resonant cavity including a non-linear medium for generating high harmonic pulses by an interaction of the laser light pulses with the non-linear medium, wherein the non-linear medium is arranged in an environment of reduced pressure.Type: GrantFiled: May 24, 2005Date of Patent: March 2, 2010Assignee: Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V.Inventors: Christoph Gohle, Theodor W. Hänsch, Ronald Holzwarth, Thomas Udem
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Publication number: 20090296197Abstract: The invention is directed to a device for generating or receiving electromagnetic radiation in a frequency range from 10 GHz to 100 THz. The device comprises a housing and a wave guide fiber leading into the housing, the wave guide fiber being adapted for guiding pulsed laser light with a first central wavelength. Within the housing, a terahertz converter is provided for generating or receiving the electromagnetic radiation in the terahertz range. The invention is characterized by a frequency converter for converting the light exiting from the wave guide fiber to a second central wavelength being arranged between the end of the wave guide fiber and the terahertz converter in such a way that the terahertz converter is impinged by the frequency converted light. The invention is further directed to a corresponding method.Type: ApplicationFiled: May 29, 2009Publication date: December 3, 2009Inventors: Ronald Holzwarth, Rafal Wilk
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Patent number: 7418017Abstract: A description is given of an optical structure (100), in particular for determining and stabilizing the relative phase of short pulses, which contains a broadening device (6) for broadening the frequency spectrum of pulses of electromagnetic radiation, and a frequency multiplier device (8) for multiplying at least one frequency component of the pulses, wherein a focusing lens optic (7) is arranged between the broadening device and the frequency multiplier device, which focusing lens optic can be used to focus the pulses into the frequency multiplier device (8). Uses of this optical structure are also described.Type: GrantFiled: July 25, 2006Date of Patent: August 26, 2008Assignee: Menlo Systems GmbHInventors: Ronald Holzwarth, Michael Mei
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Publication number: 20080069159Abstract: The invention concerns a laser system with a frequency comb generator for generating a comb of optical frequencies having an offset frequency and a plurality of equidistant modes, wherein the laser system further preferably comprises at least one stabilizer for stabilizing the frequency comb onto a certain offset frequency and/or onto a certain mode spacing. The laser system further comprises an optical amplifier for amplifying the frequency comb coupled out of the frequency comb generator, the amplification factor of this amplifier being variable; and the amplifier is followed by a Raman medium for generating a Raman shift of the frequency comb.Type: ApplicationFiled: May 18, 2007Publication date: March 20, 2008Inventors: Peter Adel, Marc Fischer, Michael Mei, Ronald Holzwarth
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Patent number: 7203402Abstract: Methods and apparatus for generating a frequency comb and for its use in analyzing materials and in telecommunications. The frequency comb is generated by passing pulsed light from a laser through an optical fiber having a constriction. The frequency comb comprises a plurality of monochromatic components separated in frequency by a substantially constant frequency increment. The monochromatic components are used to probe materials for analysis. In preferred embodiments, the materials are DNA, RNA, PNA and other biologically important molecules and polymers. Optical responses are observed and used to analyze or identify samples. In telecommunication applications, the individual monochromatic components serve as carriers for individual communication channels that can carry information of any of a variety of types, such as voice, data and images.Type: GrantFiled: January 30, 2006Date of Patent: April 10, 2007Assignee: Menlo Biocombs, Inc.Inventors: Theodor W. Haensch, Michael Mei, Ronald Holzwarth, Frederick R. Blume
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Publication number: 20070071060Abstract: A description is given of an optical structure (100), in particular for determining and stabilizing the relative phase of short pulses, which contains a broadening device (6) for broadening the frequency spectrum of pulses of electromagnetic radiation, and a frequency multiplier device (8) for multiplying at least one frequency component of the pulses, wherein a focusing lens optic (7) is arranged between the broadening device and the frequency multiplier device, which focusing lens optic can be used to focus the pulses into the frequency multiplier device (8). Uses of this optical structure are also described.Type: ApplicationFiled: July 25, 2006Publication date: March 29, 2007Applicant: MENLO SYSTEMS GMBHInventors: Ronald Holzwarth, Michael Mel
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Patent number: 7187864Abstract: Methods and apparatus for generating a frequency comb and for its use in analyzing materials and in telecommunications. The frequency comb is generated by passing pulsed light from a laser through an optical fiber having a constriction. The frequency comb comprises a plurality of monochromatic components separated in frequency by a substantially constant frequency increment. The monochromatic components are used to probe materials for analysis. In preferred embodiments, the materials are DNA, RNA, PNA and other biologically important molecules and polymers. Optical responses are observed and used to analyze or identify samples. In telecommunication applications, the individual monochromatic components serve as carriers for individual communication channels that can carry information of any of a variety of types, such as voice, data and images.Type: GrantFiled: March 31, 2005Date of Patent: March 6, 2007Assignee: Menlo Biocombs, Inc.Inventors: Theodor W. Haensch, Michael Mei, Ronald Holzwarth, Frederick R. Blume
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Publication number: 20060268949Abstract: A method of generating pulsed coherent radiation, comprises the step of generating high harmonic pulses by an interaction of laser light pulses with a non-linear medium contained in a resonant cavity, wherein the non-linear medium is arranged in an environment of reduced pressure. Furthermore, a radiation source of generating pulsed coherent radiation is described, comprising a laser pulse source for generating laser light pulses, a resonant cavity including a non-linear medium for generating high harmonic pulses by an interaction of the laser light pulses with the non-linear medium, wherein the non-linear medium is arranged in an environment of reduced pressure.Type: ApplicationFiled: May 24, 2005Publication date: November 30, 2006Inventors: Christoph Gohle, Theodor Hansch, Ronald Holzwarth, Thomas Udem
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Publication number: 20060238762Abstract: Methods and apparatus for generating a frequency comb and for its use in analyzing materials and in telecommunications. The frequency comb is generated by passing pulsed light from a laser through an optical fiber having a constriction. The frequency comb comprises a plurality of monochromatic components separated in frequency by a substantially constant frequency increment. The monochromatic components are used to probe materials for analysis. In preferred embodiments, the materials are DNA, RNA, PNA and other biologically important molecules and polymers. Optical responses are observed and used to analyze or identify samples. In telecommunication applications, the individual monochromatic components serve as carriers for individual communication channels that can carry information of any of a variety of types, such as voice, data and images.Type: ApplicationFiled: January 30, 2006Publication date: October 26, 2006Applicant: Menlo Biocombs, Inc.Inventors: Theodor Haensch, Michael Mei, Ronald Holzwarth, Frederick Blume
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Patent number: 7088876Abstract: Methods and apparatus for generating a frequency comb and for its use in analyzing materials and in telecommunications. The frequency comb is generated by passing pulsed light from a laser through an optical fiber having a constriction. The frequency comb comprises a plurality of monochromatic components separated in frequency by a substantially constant frequency increment. The monochromatic components are used to probe materials for analysis. In preferred embodiments, the materials are DNA, RNA, PNA and other biologically important molecules and polymers. Optical responses are observed and used to analyze or identify samples. In telecommunication applications, the individual monochromatic components serve as carriers for individual communication channels that can carry information of any of a variety of types, such as voice, data and images.Type: GrantFiled: January 30, 2006Date of Patent: August 8, 2006Assignee: Menlo Biocombs, Inc.Inventors: Theodor W. Haensch, Michael Mei, Ronald Holzwarth, Frederick R. Blume
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Publication number: 20060132784Abstract: Methods and apparatus for generating a frequency comb and for its use in analyzing materials and in telecommunications. The frequency comb is generated by passing pulsed light from a laser through an optical fiber having a constriction. The frequency comb comprises a plurality of monochromatic components separated in frequency by a substantially constant frequency increment. The monochromatic components are used to probe materials for analysis. In preferred embodiments, the materials are DNA, RNA, PNA and other biologically important molecules and polymers. Optical responses are observed and used to analyze or identify samples. In telecommunication applications, the individual monochromatic components serve as carriers for individual communication channels that can carry information of any of a variety of types, such as voice, data and images.Type: ApplicationFiled: January 30, 2006Publication date: June 22, 2006Inventors: Theodor Haensch, Michael Mei, Ronald Holzwarth, Fredrick Blume
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Patent number: 7026594Abstract: The invention relates to a method for producing radio frequency waves, whereby a pulse laser for producing light pulses having a predetermined spectrum of frequency modes and a predetermined recurrence frequency is operated. The light pulses of the pulse laser are detected by means of a detector device, and corresponding electrical output signals forming the radio frequency signals are produced. Said pulse laser is actuated in a stabilized manner by means of an optical reference signal in such a way that the recurrence frequency of the light pulse is fixed. The invention also relates to a radio frequency generator for implementing said method.Type: GrantFiled: September 5, 2001Date of Patent: April 11, 2006Assignee: Max-Planck-Gesellschaft Zur Forderung der Wissenschaft E.V.Inventors: Ronald Holzwarth, Thomas Udem, Theodor Hansch
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Publication number: 20050219540Abstract: Methods and apparatus for generating a frequency comb and for its use in analyzing materials and in telecommunications. The frequency comb is generated by passing pulsed light from a laser through an optical fiber having a constriction. The frequency comb comprises a plurality of monochromatic components separated in frequency by a substantially constant frequency increment. The monochromatic components are used to probe materials for analysis. In preferred embodiments, the materials are DNA, RNA, PNA and other biologically important molecules and polymers. Optical responses are observed and used to analyze or identify samples. In telecommunication applications, the individual monochromatic components serve as carriers for individual communication channels that can carry information of any of a variety of types, such as voice, data and images.Type: ApplicationFiled: March 31, 2005Publication date: October 6, 2005Inventors: Theodor Haensch, Michael Mei, Ronald Holzwarth, Frederick Blume
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Patent number: 6897959Abstract: Methods and apparatus for generating a frequency comb and for its use in analyzing materials and in telecommunications. The frequency comb is generated by passing pulsed light from a laser through an optical fiber having a constriction. The frequency comb comprises a plurality of monochromatic components separated in frequency by a substantially constant frequency increment. The monochromatic components are used to probe materials for analysis. In preferred embodiments, the materials are DNA, RNA, PNA and other biologically important molecules and polymers. Optical responses are observed and used to analyze or identify samples. In telecommunication applications, the individual monochromatic components serve as carriers for individual communication channels that can carry information of any of a variety of types, such as voice, data and images.Type: GrantFiled: April 12, 2002Date of Patent: May 24, 2005Assignee: Menlo Biocombs, Inc.Inventors: Theodor W. Haensch, Michael Mei, Ronald Holzwarth, Fredrick R. Blume