Patents by Inventor Vadim Lozovoy
Vadim Lozovoy 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: 11817670Abstract: A pulse configurable laser unit is an environmentally stable, mechanically robust, and maintenance-free ultrafast laser source for low-energy industrial, medical and analytical applications. The key features of the laser unit are a reliable, self-starting fiber oscillator and an integrated programmable pulse shaper. The combination of these components allows taking full advantage of the laser's broad bandwidth ultrashort pulse duration and arbitrary waveform generation via spectral phase manipulation. The source can routinely deliver near-TL, sub-60 fs pulses with megawatt-level peak power. The output pulse dispersion can be tuned to pre-compensate phase distortions down the line as well as to optimize the pulse profile for a specific application.Type: GrantFiled: September 5, 2019Date of Patent: November 14, 2023Assignee: IPG PHOTONICS CORPORATIONInventors: Andrey Bordenyuk, Dmitry Pestov, Vadim Lozovoy, Igor Samartsev
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Patent number: 11502473Abstract: A laser apparatus includes an optic dispersion compensator. In another aspect, an optic (40, 45) uses phase wrapping to compress or stretch a laser pulse. A further aspect includes an apparatus and method for binary-phase compression of stretched laser pulses. In yet another aspect, a single monolithic transmissive or reflective optic (40, 45) provides compression or stretching of a laser pulse using a sinusoidal pattern for introducing binary steps. Another aspect provides a stretching or compressing optic (40, 45) for retarding a phase of multiple frequency regions of a laser pulse by a factor of 2? or less. Still another aspect employs a volume grating or multi-layer mirror including phase wrapping to obtain discontinuous phase jumps in a laser pulse compressor (45) or stretcher (40). Methods of using or making the laser apparatus are also provided.Type: GrantFiled: August 29, 2018Date of Patent: November 15, 2022Assignee: Board of Trustees of Michigan State UniversityInventors: Marcos Dantus, Vadim Lozovoy
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Patent number: 10971881Abstract: A laser pulse includes a flat top shape. Another aspects provides a method and system for creating laser pulse amplification with a flat top and/or square shape, by only using phase modulation. In yet another aspect, a method and system create a flat top and/or square-shaped laser pulse in a reversible manner such that the stretched spectrum can be recompressed to their original duration with essentially no loss of pulse energy. A further aspect includes a method of making a fixed optic capable to creating flat top or square pulse amplification.Type: GrantFiled: March 27, 2018Date of Patent: April 6, 2021Assignee: Board of Trustees of Michigan State UniversityInventors: Marcos Dantus, Vadim Lozovoy
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Publication number: 20200212643Abstract: A laser apparatus includes an optic dispersion compensator. In another aspect, an optic (40, 45) uses phase wrapping to compress or stretch a laser pulse. A further aspect includes an apparatus and method for binary-phase compression of stretched laser pulses. In yet another aspect, a single monolithic transmissive or reflective optic (40, 45) provides compression or stretching of a laser pulse using a sinusoidal pattern for introducing binary steps. Another aspect provides a stretching or compressing optic (40, 45) for retarding a phase of multiple frequency regions of a laser pulse by a factor of 2? or less. Still another aspect employs a volume grating or multi-layer mirror including phase wrapping to obtain discontinuous phase jumps in a laser pulse compressor (45) or stretcher (40). Methods of using or making the laser apparatus are also provided.Type: ApplicationFiled: August 29, 2018Publication date: July 2, 2020Applicant: Board of Trustees of Michigan State UniversityInventors: Marcos DANTUS, Vadim LOZOVOY
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Publication number: 20200076151Abstract: A pulse configurable laser unit is an environmentally stable, mechanically robust, and maintenance-free ultrafast laser source for low-energy industrial, medical and analytical applications. The key features of the laser unit are a reliable, self-starting fiber oscillator and an integrated programmable pulse shaper. The combination of these components allows taking full advantage of the laser's broad bandwidth ultrashort pulse duration and arbitrary waveform generation via spectral phase manipulation. The source can routinely deliver near-TL, sub-60 fs pulses with megawatt-level peak power. The output pulse dispersion can be tuned to pre-compensate phase distortions down the line as well as to optimize the pulse profile for a specific application.Type: ApplicationFiled: September 5, 2019Publication date: March 5, 2020Inventors: Andrey BORDENYUK, Dmitry Pestov, Vadim Lozovoy, Igor Samartsev
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Publication number: 20180219346Abstract: A laser pulse includes a flat top shape. Another aspects provides a method and system for creating laser pulse amplification with a flat top and/or square shape, by only using phase modulation. In yet another aspect, a method and system create a flat top and/or square-shaped laser pulse in a reversible manner such that the stretched spectrum can be recompressed to their original duration with essentially no loss of pulse energy. A further aspect includes a method of making a fixed optic capable to creating flat top or square pulse amplification.Type: ApplicationFiled: March 27, 2018Publication date: August 2, 2018Applicant: Board of Trustees of Michigan State UniversityInventors: Marcos Dantus, Vadim Lozovoy
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Patent number: 8630322Abstract: A laser system capable of phase and/or amplitude manipulation of the output pulses is provided. In another aspect, a laser system includes a self-referenced pulse characterization method. A further aspect uses spectral amplitude modulation to isolate spectral bands by scanning one or more transmission slits or openings, and measuring and/or calculating the first derivative of a phase (group delay) across an entire spectrum. A single-beam pulse shaper-based technique for spectrometer-free measurement and compensation of laser pulse phase distortions is also provided in an additional aspect.Type: GrantFiled: February 28, 2011Date of Patent: January 14, 2014Assignee: Board of Trustees of Michigan State UniversityInventors: Marcos Dantus, Vadim Lozovoy
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Patent number: 8300669Abstract: A control system and apparatus for use with an ultra-fast laser is provided. In another aspect of the present invention, the apparatus includes a laser, pulse shaper, detection device and control system. A multiphoton intrapulse interference method is used to characterize the spectral phase of laser pulses and to compensate any distortions in an additional aspect of the present invention. In another aspect of the present invention, a system employs multiphoton intrapulse interference phase scan. Furthermore, another aspect of the present invention locates a pulse shaper and/or MIIPS unit between a laser oscillator and an output of a laser amplifier.Type: GrantFiled: June 23, 2009Date of Patent: October 30, 2012Assignee: Board of Trustees of Michigan State UniversityInventors: Marcos Dantus, Igor Pastirk, Vadim Lozovoy, Matthew Comstock
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Publication number: 20110211600Abstract: A laser system capable of phase and/or amplitude manipulation of the output pulses is provided. In another aspect, a laser system includes a self-referenced pulse characterization method. A further aspect uses spectral amplitude modulation to isolate spectral bands by scanning one or more transmission slits or openings, and measuring and/or calculating the first derivative of a phase (group delay) across an entire spectrum. A single-beam pulse shaper-based technique for spectrometer-free measurement and compensation of laser pulse phase distortions is also provided in an additional aspect.Type: ApplicationFiled: February 28, 2011Publication date: September 1, 2011Applicant: Board of Trustees of Michigan State UniversityInventors: Marcos Dantus, Vadim Lozovoy
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Publication number: 20060056468Abstract: A control system and apparatus for use with an ultra-fast laser is provided. In another aspect of the present invention, the apparatus includes a laser, pulse shaper, detection device and control system. A multiphoton intrapulse interference method is used to characterize the spectral phase of laser pulses and to compensate for any distortions in an additional aspect of the present invention. In another aspect of the present invention, a system employs multiphoton intrapulse interference phase scan. Furthermore, another aspect of the present invention locates a pulse shaper and/or MIIPS unit between a spectral dispersion point in a laser oscillator and an output of a laser amplifier.Type: ApplicationFiled: July 8, 2005Publication date: March 16, 2006Inventors: Marcos Dantus, Igor Pastirk, Vadim Lozovoy, Matthew Comstock
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Publication number: 20050232317Abstract: A control system and apparatus for use with laser ionization is provided. In another aspect of the present invention, the apparatus includes a laser, pulse shaper, detection device and control system. A further aspect of the present invention employs a femtosecond laser and a mass spectrometer in yet other aspects of the present invention, the control system and apparatus are used in MALDI, chemical bond cleaving, protein sequencing, photodynamic therapy, optical coherence tomography and optical communications processes.Type: ApplicationFiled: May 6, 2005Publication date: October 20, 2005Inventors: Marcos Dantus, Vadim Lozovoy
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Publication number: 20050021243Abstract: A laser and monitoring system is provided. In another aspect of the present invention, the system includes a laser, pulse shaper and detection device. A further aspect of the present invention employs a femtosecond laser and binary pulse shaping (BPS). Still another aspect of the present invention uses a laser beam pulse, a pulse shaper and a SHG crystal. In yet another aspect of the present invention, a multiphoton intrapulse interference phase scan (hereinafter “MIIPS”) method is used to characterize the spectral phase of femtosecond laser pulses and to correct them. A further aspect of the system of the present invention is employed to monitor environmental chemicals and biological agents, including toxins, explosives, and diseases.Type: ApplicationFiled: July 2, 2004Publication date: January 27, 2005Inventors: Marcos Dantus, Vadim Lozovoy, Matthew Comstock