Patents by Inventor Christopher D. Brooks
Christopher D. Brooks 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: 20240104843Abstract: In some embodiments, a computer system facilitates depth conflict mitigation for a virtual object that is in contact with one or more physical objects in a three-dimensional environment by reducing visual prominence of one or more portions of the virtual object. In some embodiments, a computer system adjusts the visibility of one or more virtual objects in a three-dimensional environment by applying a visual effect to the one or more virtual objects in response to detecting one or more portions of a user. In some embodiments, a computer system modifies visual prominence in accordance with a level of engagement with a virtual object.Type: ApplicationFiled: September 22, 2023Publication date: March 28, 2024Inventors: Christopher D. MCKENZIE, Benjamin HYLAK, Conner J. BROOKS, Adrian P. LINDBERG, Bryce L. SCHMIDTCHEN
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Patent number: 9653872Abstract: A ring laser includes a large-core rare-earth-doped fiber ring-connected with a free-space path having an electro-optic switch, output coupler, and intracavity band-pass filter to enforce lasing operation in narrow wavelength range. In some cavity-dumped modes, the laser is configured in a similar manner, except that an output coupler is omitted since the optical power is extracted from the laser cavity by the electro-optic switch itself. The same laser can be configured to operate in Q-switched and/or cavity-dumping modes as well as in hybrid modes (e.g., partial Q-switch, followed by cavity dumping, or even CW). In some embodiments, the laser can be used as, or inject laser light into, a regenerative solid-state amplifier, or a Raman laser, or can be also used to generate visible, ultra-violet, mid-infrared, and far-infrared (THz) radiation via nonlinear wavelength conversion processes. The various embodiments can use a power oscillator or seed-plus-amplifier MOPA configuration.Type: GrantFiled: June 4, 2014Date of Patent: May 16, 2017Assignee: Lockheed Martin CorporationInventors: Fabio Di Teodoro, Tracy W. Vatter, Christopher D. Brooks, Robert W. Royse, Matthias P. Savage-Leuchs
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Publication number: 20160204564Abstract: A ring laser includes a large-core rare-earth-doped fiber ring-connected with a free-space path having an electro-optic switch, output coupler, and intracavity band-pass filter to enforce lasing operation in narrow wavelength range. In some cavity-dumped modes, the laser is configured in a similar manner, except that an output coupler is omitted since the optical power is extracted from the laser cavity by the electro-optic switch itself. The same laser can be configured to operate in Q-switched and/or cavity-dumping modes as well as in hybrid modes (e.g., partial Q-switch, followed by cavity dumping, or even CW). In some embodiments, the laser can be used as, or inject laser light into, a regenerative solid-state amplifier, or a Raman laser, or can be also used to generate visible, ultra-violet, mid-infrared, and far-infrared (THz) radiation via nonlinear wavelength conversion processes. The various embodiments can use a power oscillator or seed-plus-amplifier MOPA configuration.Type: ApplicationFiled: June 4, 2014Publication date: July 14, 2016Applicant: Lockheed Martin CorporationInventors: Fabio Di Teodoro, Tracy W. Vatter, Christopher D. Brooks, Robert W. Royse, Matthias P. Savage-Leuchs
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Patent number: 9207408Abstract: A method and apparatus use a photonic-crystal fiber having a very large core while maintaining a single transverse mode. In some fiber lasers and amplifiers having large cores problems exist related to multiple-modes and mode hopping that result from the use of large-diameter waveguides, and these are addressed. By using multiple small waveguides in parallel, large amounts of energy can be passed through a laser, but with better control such that the aforementioned problems can be reduced. Some embodiments obtain a single beam by combining beams from a plurality of laser waveguides, each having a different wavelength; for example, by using one or more diffraction gratings.Type: GrantFiled: October 7, 2014Date of Patent: December 8, 2015Assignee: Lockheed Martin CorporationInventors: Fabio Di Teodoro, Christopher D. Brooks
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Publication number: 20150293783Abstract: Provided are techniques for the scheduling of an identity Manager reconciliation at an optimal time.Type: ApplicationFiled: April 9, 2014Publication date: October 15, 2015Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Christopher D. Brooks, Quang T. Duong, Nnaemeka I. Emejulu, Anil K. Levi, Karthikeyan Ramamoorthy, Vincent C. Willimas
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Patent number: 8854728Abstract: A method and apparatus use a photonic-crystal fiber having a very large core while maintaining a single transverse mode. In some fiber lasers and amplifiers having large cores problems exist related to energy being generated at multiple-modes (i.e., polygamy), and of mode hopping (i.e., promiscuity) due to limited control of energy levels and fluctuations. The problems of multiple-modes and mode hopping result from the use of large-diameter waveguides, and are addressed by the invention. This is especially true in lasers using large amounts of energy (i.e., lasers in the one-megawatt or more range). By using multiple small waveguides in parallel, large amounts of energy can be passed through a laser, but with better control such that the aforementioned problems can be reduced. An additional advantage is that the polarization of the light can be maintained better than by using a single fiber core.Type: GrantFiled: June 25, 2013Date of Patent: October 7, 2014Assignee: Lockheed Martin CorporationInventors: Christopher D. Brooks, Fabio Di Teodoro
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Patent number: 8750339Abstract: A ring laser includes a large-core rare-earth-doped fiber ring-connected with a free-space path having an electro-optic switch, output coupler, and intracavity band-pass filter to enforce lasing operation in narrow wavelength range. In some cavity-dumped modes, the laser is configured in a similar manner, except that an output coupler is omitted since the optical power is extracted from the laser cavity by the electro-optic switch itself. The same laser can be configured to operate in Q-switched and/or cavity-dumping modes as well as in hybrid modes (e.g., partial Q-switch, followed by cavity dumping, or even CW). In some embodiments, the laser can be used as, or inject laser light into, a regenerative solid-state amplifier, or a Raman laser, or can be also used to generate visible, ultra-violet, mid-infrared, and far-infrared (THz) radiation via nonlinear wavelength conversion processes. The various embodiments can use a power oscillator or seed-plus-amplifier MOPA configuration.Type: GrantFiled: January 25, 2011Date of Patent: June 10, 2014Assignee: Lockheed Martin CorporationInventors: Fabio Di Teodoro, Tracy W. Vatter, Christopher D. Brooks, Robert W. Royse, Jr., Matthias P. Savage-Leuchs
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Patent number: 8472763Abstract: A method and apparatus use a photonic-crystal fiber having a very large core while maintaining a single transverse mode. In some fiber lasers and amplifiers having large cores problems exist related to energy being generated at multiple-modes (i.e., polygamy), and of mode hopping (i.e., promiscuity) due to limited control of energy levels and fluctuations. The problems of multiple-modes and mode hopping result from the use of large-diameter waveguides, and are addressed by the invention. This is especially true in lasers using large amounts of energy (i.e., lasers in the one-megawatt or more range). By using multiple small waveguides in parallel, large amounts of energy can be passed through a laser, but with better control such that the aforementioned problems can be reduced. An additional advantage is that the polarization of the light can be maintained better than by using a single fiber core.Type: GrantFiled: March 8, 2011Date of Patent: June 25, 2013Assignee: Lockheed Martin CorporationInventors: Anping Liu, Eric C. Honea, Charles A. Lemaire, Roy D. Mead, Christopher D. Brooks, Andrew J. W. Brown, Charles E. Hamilton, Thomas H. Loftus, Fabio Di Teodoro
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Patent number: 7941019Abstract: A method and apparatus use a photonic-crystal fiber having a very large core while maintaining a single transverse mode. In some fiber lasers and amplifiers having large cores problems exist related to energy being generated at multiple-modes (i.e., polygamy), and of mode hopping (i.e., promiscuity) due to limited control of energy levels and fluctuations. The problems of multiple-modes and mode hopping result from the use of large-diameter waveguides, and are addressed by the invention. This is especially true in lasers using large amounts of energy (i.e., lasers in the one-megawatt or more range). By using multiple small waveguides in parallel, large amounts of energy can be passed through a laser, but with better control such that the aforementioned problems can be reduced. An additional advantage is that the polarization of the light can be maintained better than by using a single fiber core.Type: GrantFiled: May 27, 2006Date of Patent: May 10, 2011Assignee: Lockheed Martin CorporationInventors: Christopher D. Brooks, Fabio Di Teodoro
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Patent number: 7876803Abstract: A ring laser includes a large-core rare-earth-doped fiber ring-connected with a free-space path having an electro-optic switch, output coupler, and intracavity band-pass filter to enforce lasing operation in narrow wavelength range. In some cavity-dumped modes, the laser is configured in a similar manner, except that an output coupler is omitted since the optical power is extracted from the laser cavity by the electro-optic switch itself. The same laser can be configured to operate in Q-switched and/or cavity-dumping modes as well as in hybrid modes (e.g., partial Q-switch, followed by cavity dumping, or even CW). In some embodiments, the laser can be used as, or inject laser light into, a regenerative solid-state amplifier, or a Raman laser, or can be also used to generate visible, ultra-violet, mid-infrared, and far-infrared (THz) radiation via nonlinear wavelength conversion processes. The various embodiments can use a power oscillator or seed-plus-amplifier MOPA configuration.Type: GrantFiled: March 21, 2008Date of Patent: January 25, 2011Assignee: Lockheed Martin CorporationInventors: Fabio Di Teodoro, Tracy W. Vatter, Christopher D. Brooks, Robert W. Royse, Jr., Matthias P. Savage-Leuchs
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Patent number: 7835068Abstract: A method and apparatus use a photonic-crystal fiber having a very large core while maintaining a single transverse mode. In some embodiments, the method and apparatus includes a photonic-crystal fiber or rod (PCF or PCR) optical device having a beam-expanding endcap formed, e.g., by collapsing or otherwise sealing holes of the PCF or PCR. In some fiber lasers and amplifiers having large cores problems exist related to energy being generated at multiple-modes (i.e., polygamy), and of mode hopping (i.e., promiscuity) due to limited control of energy levels and fluctuations. The problems of multiple-modes and mode hopping result from the use of large-diameter waveguides, and are addressed by the invention. This is especially true in lasers using large amounts of energy (i.e., lasers in the one-megawatt or more range).Type: GrantFiled: May 27, 2006Date of Patent: November 16, 2010Assignee: Lockheed Martin CorporationInventors: Christopher D. Brooks, Fabio Di Teodoro
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Patent number: 7830596Abstract: A method and apparatus use a photonic-crystal fiber having a very large core while maintaining a single transverse mode. In some fiber lasers and amplifiers having large cores problems exist related to energy being generated at multiple-modes (i.e., polygamy), and of mode hopping (i.e., promiscuity) due to limited control of energy levels and fluctuations. The problems of multiple-modes and mode hopping result from the use of large-diameter waveguides, and are addressed by the invention. This is especially true in lasers using large amounts of energy (i.e., lasers in the one-megawatt or more range). By using multiple small waveguides in parallel, large amounts of energy can be passed through a laser, but with better control such that the aforementioned problems can be reduced. An additional advantage is that the polarization of the light can be maintained better than by using a single fiber core.Type: GrantFiled: May 27, 2006Date of Patent: November 9, 2010Assignee: Lockheed Martin CorporationInventors: Fabio Di Teodoro, Christopher D. Brooks
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Patent number: 7782527Abstract: A method and apparatus use a photonic-crystal fiber having a very large core while maintaining a single transverse mode. In some fiber lasers and amplifiers having large cores problems exist related to energy being generated at multiple-modes (i.e., polygamy), and of mode hopping (i.e., promiscuity) due to limited control of energy levels and fluctuations. The problems of multiple-modes and mode hopping result from the use of large-diameter waveguides, and are addressed by the invention. This is especially true in lasers using large amounts of energy (i.e., lasers in the one-megawatt or more range). By using multiple small waveguides in parallel, large amounts of energy can be passed through a laser, but with better control such that the aforementioned problems can be reduced. An additional advantage is that the polarization of the light can be maintained better than by using a single fiber core.Type: GrantFiled: May 27, 2006Date of Patent: August 24, 2010Assignee: Lockheed Martin CorporationInventors: Christopher D. Brooks, Fabio Di Teodoro
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Patent number: 7751118Abstract: A method and apparatus use a photonic-crystal fiber having a very large core while maintaining a single transverse mode. In some fiber lasers and amplifiers having large cores problems exist related to energy being generated at multiple-modes (i.e., polygamy), and of mode hopping (i.e., promiscuity) due to limited control of energy levels and fluctuations. The problems of multiple-modes and mode hopping result from the use of large-diameter waveguides, and are addressed by the invention. This is especially true in lasers using large amounts of energy (i.e., lasers in the one-megawatt or more range). By using multiple small waveguides in parallel, large amounts of energy can be passed through a laser, but with better control such that the aforementioned problems can be reduced. An additional advantage is that the polarization of the light can be maintained better than by using a single fiber core.Type: GrantFiled: May 28, 2006Date of Patent: July 6, 2010Assignee: Lockheed Martin CorporationInventors: Fabio Di Teodoro, Christopher D. Brooks
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Patent number: 7440175Abstract: A method and apparatus use a photonic-crystal fiber having a very large core while maintaining a single transverse mode. In some fiber lasers and amplifiers having large cores problems exist related to energy being generated at multiple-modes (i.e., polygamy), and of mode hopping (i.e., promiscuity) due to limited control of energy levels and fluctuations. The problems of multiple-modes and mode hopping result from the use of large-diameter waveguides, and are addressed by the invention. This is especially true in lasers using large amounts of energy (i.e., lasers in the one-megawatt or more range). By using multiple small waveguides in parallel, large amounts of energy can be passed through a laser, but with better control such that the aforementioned problems can be reduced. An additional advantage is that the polarization of the light can be maintained better than by using a single fiber core.Type: GrantFiled: May 27, 2006Date of Patent: October 21, 2008Assignee: Aculight CorporationInventors: Fabio Di Teodoro, Christopher D. Brooks
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Patent number: 7436585Abstract: A method and apparatus use a photonic-crystal fiber having a very large core while maintaining a single transverse mode. In some fiber lasers and amplifiers having large cores problems exist related to energy being generated at multiple-modes (i.e., polygamy), and of mode hopping (i.e., promiscuity) due to limited control of energy levels and fluctuations. The problems of multiple-modes and mode hopping result from the use of large-diameter waveguides, and are addressed by the invention. This is especially true in lasers using large amounts of energy (i.e., lasers in the one-megawatt or more range). By using multiple small waveguides in parallel, large amounts of energy can be passed through a laser, but with better control such that the aforementioned problems can be reduced. An additional advantage is that the polarization of the light can be maintained better than by using a single fiber core.Type: GrantFiled: May 28, 2006Date of Patent: October 14, 2008Assignee: Aculight CorporationInventors: Fabio Di Teodoro, Christopher D. Brooks
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Patent number: 7430352Abstract: A method and apparatus use a photonic-crystal fiber having a very large core while maintaining a single transverse mode. In some fiber lasers and amplifiers having large cores problems exist related to energy being generated at multiple-modes (i.e., polygamy), and of mode hopping (i.e., promiscuity) due to limited control of energy levels and fluctuations. The problems of multiple-modes and mode hopping result from the use of large-diameter waveguides, and are addressed by the invention. This is especially true in lasers using large amounts of energy (i.e., lasers in the one-megawatt or more range). By using multiple small waveguides in parallel, large amounts of energy can be passed through a laser, but with better control such that the aforementioned problems can be reduced. An additional advantage is that the polarization of the light can be maintained better than by using a single fiber core.Type: GrantFiled: May 26, 2006Date of Patent: September 30, 2008Assignee: Aculight CorporationInventors: Fabio Di Teodoro, Christopher D. Brooks, Charles A. Lemaire
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Patent number: 7400804Abstract: A method and apparatus use a photonic-crystal fiber having a very large core while maintaining a single transverse mode. In some fiber lasers and amplifiers having large cores problems exist related to energy being generated at multiple-modes (i.e., polygamy), and of mode hopping (i.e., promiscuity) due to limited control of energy levels and fluctuations. The problems of multiple-modes and mode hopping result from the use of large-diameter waveguides, and are addressed by the invention. This is especially true in lasers using large amounts of energy (i.e., lasers in the one-megawatt or more range). By using multiple small waveguides in parallel, large amounts of energy can be passed through a laser, but with better control such that the aforementioned problems can be reduced. An additional advantage is that the polarization of the light can be maintained better than by using a single fiber core.Type: GrantFiled: May 28, 2006Date of Patent: July 15, 2008Assignee: Aculight CorporationInventors: Fabio Di Teodoro, Christopher D. Brooks, Charles A. Lemaire
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Patent number: 7391561Abstract: A method and apparatus use a photonic-crystal fiber having a very large core while maintaining a single transverse mode. In some fiber lasers and amplifiers having large cores problems exist related to energy being generated at multiple-modes (i.e., polygamy), and of mode hopping (i.e., promiscuity) due to limited control of energy levels and fluctuations. The problems of multiple-modes and mode hopping result from the use of large-diameter waveguides, and are addressed by the invention. This is especially true in lasers using large amounts of energy (i.e., lasers in the one-megawatt or more range). By using multiple small waveguides in parallel, large amounts of energy can be passed through a laser, but with better control such that the aforementioned problems can be reduced. An additional advantage is that the polarization of the light can be maintained better than by using a single fiber core.Type: GrantFiled: May 26, 2006Date of Patent: June 24, 2008Assignee: Aculight CorporationInventors: Fabio Di Teodoro, Christopher D. Brooks
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Patent number: 7386211Abstract: A method and apparatus use a photonic-crystal fiber having a very large core while maintaining a single transverse mode. In some fiber lasers and amplifiers having large cores problems exist related to energy being generated at multiple-modes (i.e., polygamy), and of mode hopping (i.e., promiscuity) due to limited control of energy levels and fluctuations. The problems of multiple-modes and mode hopping result from the use of large-diameter waveguides, and are addressed by the invention. This is especially true in lasers using large amounts of energy (i.e., lasers in the one-megawatt or more range). By using multiple small waveguides in parallel, large amounts of energy can be passed through a laser, but with better control such that the aforementioned problems can be reduced. An additional advantage is that the polarization of the light can be maintained better than by using a single fiber core.Type: GrantFiled: May 28, 2006Date of Patent: June 10, 2008Assignee: Aculight CorporationInventors: Fabio Di Teodoro, Christopher D. Brooks