Patents by Inventor Martin Fermann
Martin Fermann 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: 10014653Abstract: Frequency standards based on mode-locked fiber lasers, fiber amplifiers and fiber-based ultra-broad bandwidth light sources, and applications of the same.Type: GrantFiled: October 14, 2015Date of Patent: July 3, 2018Assignee: IMRA AMERICA, INC.Inventors: Ingmar Hartl, Martin Fermann
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Patent number: 9759983Abstract: A frequency comb laser providing large comb spacing is disclosed. At least one embodiment includes a mode locked waveguide laser system. The mode locked waveguide laser includes a laser cavity having a waveguide, and a dispersion control unit (DCU) in the cavity. The DCU imparts an angular dispersion, group-velocity dispersion (GVD) and a spatial chirp to a beam propagating in the cavity. The DCU is capable of producing net GVD in a range from a positive value to a negative value. In some embodiments a tunable fiber frequency comb system configured as an optical frequency synthesizer is provided. In at least one embodiment a low phase noise micro-wave source may be implemented with a fiber comb laser having a comb spacing greater than about 1 GHz. The laser system is suitable for mass-producible fiber comb sources with large comb spacing and low noise. Applications include high-resolution spectroscopy.Type: GrantFiled: December 14, 2015Date of Patent: September 12, 2017Assignee: IMRA AMERICA, INC.Inventors: Martin Fermann, Ingmar Hartl
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Patent number: 9711932Abstract: The invention relates to scanning pulsed laser systems for optical imaging. Coherent dual scanning laser systems (CDSL) are disclosed and some applications thereof. Various alternatives for implementation are illustrated. In at least one embodiment a coherent dual scanning laser system (CDSL) includes two passively modelocked fiber oscillators. In some embodiments an effective CDSL is constructed with only one laser. At least one embodiment includes a coherent scanning laser system (CSL) for generating pulse pairs with a time varying time delay. A CDSL, effective CDSL, or CSL may be arranged in an imaging system for one or more of optical imaging, microscopy, micro-spectroscopy and/or THz imaging.Type: GrantFiled: September 8, 2015Date of Patent: July 18, 2017Assignee: IMRA AMERICA, INC.Inventors: Martin Fermann, Ingmar Hartl, Axel Ruehl
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Publication number: 20170085053Abstract: The present invention relates to compact, low noise, ultra-short pulse sources based on fiber amplifiers, and various applications thereof. At least one implementation includes an optical amplification system having a fiber laser seed source producing seed pulses at a repetition rate corresponding to the fiber laser cavity round trip time. A nonlinear pulse transformer, comprising a fiber length greater than about 10 m, receives a seed pulse at its input and produces a spectrally broadened output pulse at its output, the output pulse having a spectral bandwidth which is more than 1.5 times a spectral bandwidth of a seed pulse. A fiber power amplifier receives and amplifies spectrally broadened output pulses. A pulse compressor is configured to temporally compress spectrally broadened pulses amplified by said power amplifier. Applications include micro-machining, ophthalmology, molecular desorption or ionization, mass-spectroscopy, and/or laser-based, biological tissue processing.Type: ApplicationFiled: November 30, 2016Publication date: March 23, 2017Applicant: IMRA AMERICA, INC.Inventor: Martin FERMANN
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Patent number: 9559483Abstract: High power parallel fiber arrays for the amplification of high peak power pulses are described. Fiber arrays based on individual fiber amplifiers as well as fiber arrays based on multi-core fibers can be implemented. The optical phase between the individual fiber amplifier elements of the fiber array is measured and controlled using a variety of phase detection and compensation techniques. High power fiber array amplifiers can be used for EUV and X-ray generation as well as pumping of parametric amplifiers.Type: GrantFiled: February 11, 2016Date of Patent: January 31, 2017Assignee: IMRA AMERICA, INC.Inventors: Martin Fermann, Ingmar Hartl, Andrius Marcinkevicius, Liang Dong
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Publication number: 20160226209Abstract: High power parallel fiber arrays for the amplification of high peak power pulses are described. Fiber arrays based on individual fiber amplifiers as well as fiber arrays based on multi-core fibers can be implemented. The optical phase between the individual fiber amplifier elements of the fiber array is measured and controlled using a variety of phase detection and compensation techniques. High power fiber array amplifiers can be used for EUV and X-ray generation as well as pumping of parametric amplifiers.Type: ApplicationFiled: February 11, 2016Publication date: August 4, 2016Applicant: IMRA AMERICA, INC.Inventors: Martin FERMANN, Ingmar HARTL, Andrius MARCINKEVICIUS, Liang DONG
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Publication number: 20160097963Abstract: A frequency comb laser providing large comb spacing is disclosed. At least one embodiment includes a mode locked waveguide laser system. The mode locked waveguide laser includes a laser cavity having a waveguide, and a dispersion control unit (DCU) in the cavity. The DCU imparts an angular dispersion, group-velocity dispersion (GVD) and a spatial chirp to a beam propagating in the cavity. The DCU is capable of producing net GVD in a range from a positive value to a negative value. In some embodiments a tunable fiber frequency comb system configured as an optical frequency synthesizer is provided. In at least one embodiment a low phase noise micro-wave source may be implemented with a fiber comb laser having a comb spacing greater than about 1 GHz. The laser system is suitable for mass-producible fiber comb sources with large comb spacing and low noise. Applications include high-resolution spectroscopy.Type: ApplicationFiled: December 14, 2015Publication date: April 7, 2016Applicant: IMRA AMERICA, INC.Inventors: Martin FERMANN, Ingmar HARTL
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Publication number: 20160094010Abstract: Frequency standards based on mode-locked fiber lasers, fiber amplifiers and fiber-based ultra-broad bandwidth light sources, and applications of the same.Type: ApplicationFiled: October 14, 2015Publication date: March 31, 2016Applicant: IMRA AMERICA, INC.Inventors: Ingmar HARTL, Martin FERMANN
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Patent number: 9293884Abstract: High power parallel fiber arrays for the amplification of high peak power pulses are described. Fiber arrays based on individual fiber amplifiers as well as fiber arrays based on multi-core fibers can be implemented. The optical phase between the individual fiber amplifier elements of the fiber array is measured and controlled using a variety of phase detection and compensation techniques. High power fiber array amplifiers can be used for EUV and X-ray generation as well as pumping of parametric amplifiers.Type: GrantFiled: March 30, 2015Date of Patent: March 22, 2016Assignee: IMRA AMERICA, INC.Inventors: Martin Fermann, Ingmar Hartl, Andrius Marcinkevicius, Liang Dong
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Patent number: 9252561Abstract: A frequency comb laser providing large comb spacing is disclosed. At least one embodiment includes a mode locked waveguide laser system. The mode locked waveguide laser includes a laser cavity having a waveguide, and a dispersion control unit (DCU) in the cavity. The DCU imparts an angular dispersion, group-velocity dispersion (GVD) and a spatial chirp to a beam propagating in the cavity. The DCU is capable of producing net GVD in a range from a positive value to a negative value. In some embodiments a tunable fiber frequency comb system configured as an optical frequency synthesizer is provided. In at least one embodiment a low phase noise micro-wave source may be implemented with a fiber comb laser having a comb spacing greater than about 1 GHz. The laser system is suitable for mass-producible fiber comb sources with large comb spacing and low noise. Applications include high-resolution spectroscopy.Type: GrantFiled: September 24, 2013Date of Patent: February 2, 2016Assignee: IMRA AMERICA, INC.Inventors: Martin Fermann, Ingmar Hartl
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Publication number: 20150380892Abstract: The invention relates to scanning pulsed laser systems for optical imaging. Coherent dual scanning laser systems (CDSL) are disclosed and some applications thereof. Various alternatives for implementation are illustrated. In at least one embodiment a coherent dual scanning laser system (CDSL) includes two passively modelocked fiber oscillators. In some embodiments an effective CDSL is constructed with only one laser. At least one embodiment includes a coherent scanning laser system (CSL) for generating pulse pairs with a time varying time delay. A CDSL, effective CDSL, or CSL may be arranged in an imaging system for one or more of optical imaging, microscopy, micro-spectroscopy and/or THz imaging.Type: ApplicationFiled: September 8, 2015Publication date: December 31, 2015Applicant: IMRA AMERICA, INC.Inventors: Martin FERMANN, Ingmar HARTL, Axel RUEHL
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Patent number: 9166361Abstract: Frequency standards based on mode-locked fiber lasers, fiber amplifiers and fiber-based ultra-broad bandwidth light sources, and applications of the same.Type: GrantFiled: May 12, 2015Date of Patent: October 20, 2015Assignee: IMRA AMERICA, INC.Inventors: Ingmar Hartl, Martin Fermann
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Patent number: 9153928Abstract: The invention relates to scanning pulsed laser systems for optical imaging. Coherent dual scanning laser systems (CDSL) are disclosed and some applications thereof. Various alternatives for implementation are illustrated. In at least one embodiment a coherent dual scanning laser system (CDSL) includes two passively modelocked fiber oscillators. In some embodiments an effective CDSL is constructed with only one laser. At least one embodiment includes a coherent scanning laser system (CSL) for generating pulse pairs with a time varying time delay. A CDSL, effective CDSL, or CSL may be arranged in an imaging system for one or more of optical imaging, microscopy, micro-spectroscopy and/or THz imaging.Type: GrantFiled: September 30, 2010Date of Patent: October 6, 2015Assignee: IMRA AMERICA, INC.Inventors: Martin Fermann, Ingmar Hartl, Axel Ruehl
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Publication number: 20150249317Abstract: Frequency standards based on mode-locked fiber lasers, fiber amplifiers and fiber-based ultra-broad bandwidth light sources, and applications of the same.Type: ApplicationFiled: May 12, 2015Publication date: September 3, 2015Applicant: IMRA AMERICA, INC.Inventors: Ingmar HARTL, Martin FERMANN
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Publication number: 20150207289Abstract: High power parallel fiber arrays for the amplification of high peak power pulses are described. Fiber arrays based on individual fiber amplifiers as well as fiber arrays based on multi-core fibers can be implemented. The optical phase between the individual fiber amplifier elements of the fiber array is measured and controlled using a variety of phase detection and compensation techniques. High power fiber array amplifiers can be used for EUV and X-ray generation as well as pumping of parametric amplifiers.Type: ApplicationFiled: March 30, 2015Publication date: July 23, 2015Applicant: IMRA AMERICA, INC.Inventors: Martin FERMANN, Ingmar HARTL, Andrius MARCINKEVICIUS, Liang DONG
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Patent number: 9036971Abstract: Frequency standards based on mode-locked fiber lasers, fiber amplifiers and fiber-based ultra-broad bandwidth light sources, and applications of the same.Type: GrantFiled: July 16, 2014Date of Patent: May 19, 2015Assignee: IMRA AMERICA, INC.Inventors: Ingmar Hartl, Martin Fermann
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Patent number: 9013786Abstract: High power parallel fiber arrays for the amplification of high peak power pulses are described. Fiber arrays based on individual fiber amplifiers as well as fiber arrays based on multi-core fibers can be implemented. The optical phase between the individual fiber amplifier elements of the fiber array is measured and controlled using a variety of phase detection and compensation techniques. High power fiber array amplifiers can be used for EUV and X-ray generation as well as pumping of parametric amplifiers.Type: GrantFiled: October 8, 2013Date of Patent: April 21, 2015Assignee: IMRA America, Inc.Inventors: Martin Fermann, Ingmar Hartl, Andrius Marcinkevicius, Liang Dong
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Patent number: 8971358Abstract: Coherent and compact supercontinuum light sources for the mid IR spectral regime are disclosed and exemplary applications thereof. The supercontinuum generation is based on the use of highly nonlinear fibers or waveguides. In at least one embodiment the coherence of the supercontinuum sources is increased using low noise mode locked short pulse sources. Compact supercontinuum light sources can be constructed with the use of passively mode locked fiber or diode lasers. Wavelength tunable sources can be constructed using appropriate optical filters or frequency conversion sections. Highly coherent supercontinuum sources further facilitate coherent detection schemes and can improve the signal/noise ratio in lock in detection schemes.Type: GrantFiled: March 8, 2012Date of Patent: March 3, 2015Assignee: IMRA America, Inc.Inventors: Martin Fermann, Ingmar Hartl
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Publication number: 20140328358Abstract: Frequency standards based on mode-locked fiber lasers, fiber amplifiers and fiber-based ultra-broad bandwidth light sources, and applications of the same.Type: ApplicationFiled: July 16, 2014Publication date: November 6, 2014Applicant: IMRA AMERICA, INC.Inventors: Ingmar HARTL, Martin FERMANN
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Patent number: 8818154Abstract: Frequency standards based on mode-locked fiber lasers, fiber amplifiers and fiber-based ultra-broad bandwidth light sources, and applications of the same.Type: GrantFiled: April 30, 2013Date of Patent: August 26, 2014Assignee: IMRA America, Inc.Inventors: Ingmar Hartl, Martin Fermann