Patents by Inventor Diana C. Chen
Diana C. Chen 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: 11462878Abstract: An all solid hybrid waveguiding structure provides large mode area, acceptable losses of the desired core mode and very high losses of the undesired next higher order mode in the core. Embodiments of the waveguide include a hybrid of low index barriers providing confinement by total internal reflection, and further include high index rings that support guided modes only at effective indices different from that of the desired core mode.Type: GrantFiled: May 22, 2020Date of Patent: October 4, 2022Assignee: Lawrence Livermore National Security, LLCInventors: Paul H. Pax, Diana C. Chen, Michael J. Messerly
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Patent number: 11460639Abstract: An all fiber wavelength selective coupler provides wavelength selective transfer of optical energy between two or more separated waveguides. The coupler includes signal cores that are separated enough that they can be fusion spliced to standard fibers as lead-in and lead-out pigtails. A bridge between the signal cores facilitates transfer of the optical energy through a process of evanescent coupling. In one example, the bridge is formed of a series of graded index cores.Type: GrantFiled: June 18, 2019Date of Patent: October 4, 2022Assignee: Lawrence Livermore National Security, LLCInventors: Graham S. Allen, Diana C. Chen, Matthew J. Cook, Robert P. Crist, Derrek R. Drachenberg, Jay W. Dawson, Victor V. Khitrov, Leily Kiani, Michael J. Messerly, Paul H. Pax, Nick Schenkel
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Patent number: 11340396Abstract: A class of fibers is described that have a non-circular cross section on one or both ends that can by optimized to capture the optical radiation from a laser diode or diode array and deliver the light in the same or different shape on the opposite end of the fiber. A large multimode rectangular waveguide may be provided which can accept the radiation from a high-power diode bar and transform it into a circular cross section on the opposite end, while preserving brightness.Type: GrantFiled: July 5, 2018Date of Patent: May 24, 2022Assignee: LAWRENCE LIVERMORE NATIONAL SECURITY, LLCInventors: Derrek R. Drachenberg, Graham S. Allen, Diana C. Chen, Matthew J. Cook, Robert P. Crist, Jay W. Dawson, Leily Kiani, Michael J. Messerly, Paul H. Pax, Nick Schenkel, Charles X. Yu
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Publication number: 20200373725Abstract: An all solid hybrid waveguiding structure provides large mode area, acceptable losses of the desired core mode and very high losses of the undesired next higher order mode in the core. Embodiments of the waveguide include a hybrid of low index barriers providing confinement by total internal reflection, and further include high index rings that support guided modes only at effective indices different from that of the desired core mode.Type: ApplicationFiled: May 22, 2020Publication date: November 26, 2020Applicant: Lawrence Livermore National Security, LLCInventors: Paul H. Pax, Diana C. Chen, Michael J. Messerly
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Publication number: 20200132925Abstract: A class of fibers is described that have a non-circular cross section on one or both ends that can by optimized to capture the optical radiation from a laser diode or diode array and deliver the light in the same or different shape on the opposite end of the fiber. A large multimode rectangular waveguide may be provided which can accept the radiation from a high-power diode bar and transform it into a circular cross section on the opposite end, while preserving brightness.Type: ApplicationFiled: July 5, 2018Publication date: April 30, 2020Applicant: Lawrence Livermore National Security, LLCInventors: Derrek R. Drachenberg, Graham S. Alien, Diana C. Chen, Matthew J. Cook, Robert P. Crist, Jay W. Dawson, Leily Kiani, Michael J. Messerly, Paul H. Pax, Nick Schenkel, Charles X. Yu, Victor V. Khitrov
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Publication number: 20190310420Abstract: An all fiber wavelength selective coupler provides wavelength selective transfer of optical energy between two or more separated waveguides. The coupler includes signal cores that are separated enough that they can be fusion spliced to standard fibers as lead-in and lead-out pigtails. A bridge between the signal cores facilitates transfer of the optical energy through a process of evanescent coupling. In one example, the bridge is formed of a series of graded index cores.Type: ApplicationFiled: June 18, 2019Publication date: October 10, 2019Applicant: Lawrence Livermore National Security, LLCInventors: Graham S. Allen, Diana C. Chen, Matthew J. Cook, Robert P. Crist, Derrek R. Drachenberg, Jay W. Dawson, Victor V. Khitrov, Leily Kiani, Michael J. Messerly, Paul H. Pax, Nick Schenkel
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Patent number: 8728719Abstract: A method of manufacturing a plurality of diffractive optical elements includes providing a partially transmissive slide, providing a first piece of PTR glass, and directing first UV radiation through the partially transmissive slide to impinge on the first piece of PTR glass. The method also includes exposing predetermined portions of the first piece of PTR glass to the first UV radiation and thermally treating the exposed first piece of PTR glass. The method further includes providing a second piece of PTR glass and directing second UV radiation through the thermally treated first piece of PTR glass to impinge on the second piece of PTR glass. The method additionally includes exposing predetermined portions of the second piece of PTR glass to the second UV radiation, thermally treating the exposed second piece of PTR glass, and repeating providing and processing of the second piece of PTR glass using additional pieces of PTR glass.Type: GrantFiled: August 19, 2009Date of Patent: May 20, 2014Assignee: Lawrence Livermore National Security, LLCInventors: Andy J. Bayramian, Christopher A. Ebbers, Diana C. Chen
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Patent number: 8123354Abstract: Badal Optometer and rotating cylinders are inserted in the AO-OCT to correct large spectacle aberrations such as myopia, hyperopic and astigmatism for ease of clinical use and reduction. Spherical mirrors in the sets of the telescope are rotated orthogonally to reduce aberrations and beam displacement caused by the scanners. This produces greatly reduced AO registration errors and improved AO performance to enable high order aberration correction in a patient eyes.Type: GrantFiled: April 12, 2011Date of Patent: February 28, 2012Assignee: Lawrence Livermore National Security, LLCInventors: Scot S. Olivier, Diana C. Chen, Steven M. Jones, Sean M. McNary
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Publication number: 20110194072Abstract: Badal Optometer and rotating cylinders are inserted in the AO-OCT to correct large spectacle aberrations such as myopia, hyperopic and astigmatism for ease of clinical use and reduction. Spherical mirrors in the sets of the telescope are rotated orthogonally to reduce aberrations and beam displacement caused by the scanners. This produces greatly reduced AO registration errors and improved AO performance to enable high order aberration correction in a patient eyes.Type: ApplicationFiled: April 12, 2011Publication date: August 11, 2011Inventors: Scot S. Olivier, Diana C. Chen, Steven M. Jones, Sean M. McNary
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Patent number: 7942527Abstract: Badal Optometer and rotating cylinders are inserted in the AO-OCT to correct large spectacle aberrations such as myopia, hyperopic and astigmatism for ease of clinical use and reduction. Spherical mirrors in the sets of the telescope are rotated orthogonally to reduce aberrations and beam displacement caused by the scanners. This produces greatly reduced AO registration errors and improved AO performance to enable high order aberration correction in a patient eyes.Type: GrantFiled: January 20, 2010Date of Patent: May 17, 2011Assignee: Lawrence Livermore National Security, LLCInventors: Scot S. Olivier, Diana C. Chen, Steven M. Jones, Sean M. McNary
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Publication number: 20110043917Abstract: A method of manufacturing a plurality of diffractive optical elements includes providing a partially transmissive slide, providing a first piece of PTR glass, and directing first UV radiation through the partially transmissive slide to impinge on the first piece of PTR glass. The method also includes exposing predetermined portions of the first piece of PTR glass to the first UV radiation and thermally treating the exposed first piece of PTR glass. The method further includes providing a second piece of PTR glass and directing second UV radiation through the thermally treated first piece of PTR glass to impinge on the second piece of PTR glass. The method additionally includes exposing predetermined portions of the second piece of PTR glass to the second UV radiation, thermally treating the exposed second piece of PTR glass, and repeating providing and processing of the second piece of PTR glass using additional pieces of PTR glass.Type: ApplicationFiled: August 19, 2009Publication date: February 24, 2011Applicant: Lawrence Livermore National Security, LLC.Inventors: Andy J. Bayramian, Christopher A. Ebbers, Diana C. Chen
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Publication number: 20100149490Abstract: Badal Optometer and rotating cylinders are inserted in the AO-OCT to correct large spectacle aberrations such as myopia, hyperopic and astigmatism for ease of clinical use and reduction. Spherical mirrors in the sets of the telescope are rotated orthogonally to reduce aberrations and beam displacement caused by the scanners. This produces greatly reduced AO registration errors and improved AO performance to enable high order aberration correction in a patient eyes.Type: ApplicationFiled: January 20, 2010Publication date: June 17, 2010Inventors: Scot S. Olivier, Diana C. Chen, Steven M. Jones, Sean M. McNary
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Patent number: 7665844Abstract: An adaptive optics scanning laser ophthalmoscopes is introduced to produce non-invasive views of the human retina. The use of dual deformable mirrors improved the dynamic range for correction of the wavefront aberrations compared with the use of the MEMS mirror alone, and improved the quality of the wavefront correction compared with the use of the bimorph mirror alone. The large-stroke bimorph deformable mirror improved the capability for axial sectioning with the confocal imaging system by providing an easier way to move the focus axially through different layers of the retina.Type: GrantFiled: October 18, 2007Date of Patent: February 23, 2010Assignee: Lawrence Livermore National Security LLCInventors: Diana C. Chen, Scot S. Olivier, Steven M. Jones
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Publication number: 20080218694Abstract: An adaptive optics scanning laser opthalmoscopes is introduced to produce non-invasive views of the human retina. The use of dual deformable mirrors improved the dynamic range for correction of the wavefront aberrations compared with the use of the MEMS mirror alone, and improved the quality of the wavefront correction compared with the use of the bimorph mirror alone. The large-stroke bimorph deformable mirror improved the capability for axial sectioning with the confocal imaging system by providing an easier way to move the focus axially through different layers of the retina.Type: ApplicationFiled: October 18, 2007Publication date: September 11, 2008Inventors: Diana C. Chen, Scot S. Olivier, Steven M. Jones
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Patent number: 6909854Abstract: An optical wireless communications system (1) comprises a server or transceiver hub (6) transmitting and/or receiving optical communications with geographically dispersed subscriber units (8) via optical beams. The transceiver hub (6) transmits a beam pattern that has an efficient, rectangular, flat-topped far field optical profile, thus permitting less complex and less expensive transceiver equipment to be employed in the transceiver hub (6) and in the subscriber units (8). In one embodiment, the transceiver hub (6) comprises an optical source (52, FIG. 3), an asymmetrical lens such as a cylindrical lens (60, FIG. 3), and a diffraction element such as a diffractive phase plate (65, FIG. 3). Various methods of shaping an optical transmission profile are also described.Type: GrantFiled: August 29, 2000Date of Patent: June 21, 2005Assignee: Motorola, Inc.Inventors: Norbert Kleiner, Diana C. Chen, James W. Bishop, Jr.