Patents by Inventor Laurent Vaissie
Laurent Vaissie 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: 8921733Abstract: Removing material from the surface of a first circuit comprises generating a first laser pulse using a pulse generator; targeting a spot on the first circuit using a focusing component; delivering the first laser pulse to the spot on the first circuit, the first circuit including a digital component; ablating material from the spot using the first laser pulse without changing a state of the digital component; testing performance of the first circuit, the testing being performed without reinitializing the circuit between the steps of ablating material and testing performance. Targeting the spot on the first circuit comprises generating a second laser pulse using a pulse generator; delivering a second laser pulse to a sacrificial piece of material; detecting the position of the ablation caused by the second laser pulse with a vision system that forms an image; and using this image to guide the first laser to the spot.Type: GrantFiled: April 13, 2012Date of Patent: December 30, 2014Assignee: Raydiance, Inc.Inventors: David Gaudiosi, Laurent Vaissie
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Publication number: 20120217230Abstract: Removing material from the surface of a first circuit comprises generating a first laser pulse using a pulse generator; targeting a spot on the first circuit using a focusing component; delivering the first laser pulse to the spot on the first circuit, the first circuit including a digital component; ablating material from the spot using the first laser pulse without changing a state of the digital component; testing performance of the first circuit, the testing being performed without reinitializing the circuit between the steps of ablating material and testing performance. Targeting the spot on the first circuit comprises generating a second laser pulse using a pulse generator; delivering a second laser pulse to a sacrificial piece of material; detecting the position of the ablation caused by the second laser pulse with a vision system that forms an image; and using this image to guide the first laser to the spot.Type: ApplicationFiled: April 13, 2012Publication date: August 30, 2012Inventors: David Gaudiosi, Laurent Vaissie
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Patent number: 8189971Abstract: Systems and methods for producing ultra-short optical pulses are provided. According to various embodiments, optical pulses are generated, stretched, amplified, and compressed to ultra-short lengths. In order to achieve the ultra-short lengths, dispersion compensation is provided prior to amplification and optionally before compression. Dispersion compensation prior to amplification can be performed by passing the optical pulses through a polarization-maintaining fiber that includes a nonlinear Bragg grating. In some embodiments, the optical pulses are repeatedly circulated through the polarization-maintaining fiber that includes the nonlinear Bragg grating. Dispersion compensation before compression can be achieved by passing the amplified optical pulse through another length of polarization-maintaining fiber.Type: GrantFiled: March 19, 2008Date of Patent: May 29, 2012Assignee: Raydiance, Inc.Inventors: Laurent Vaissié, James Francis Brennan, III
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Patent number: 8173929Abstract: Various embodiments of the invention include methods and systems for trimming electronic circuits using short laser pulses of near-infrared wavelength at a high repetition rate. The laser pulses ablate material from a spot on a circuit with minimal thermal and photoelectric disturbances to circuit performance. Minimal disturbance to circuit performance allows for repeated trimming and testing without pausing for circuit reinitialization. To optimize trimming, the laser pulses can also be adjusted responsive to the composition of the material ablated. In some embodiments, the system is configured to trim a plurality of circuits in parallel.Type: GrantFiled: October 2, 2006Date of Patent: May 8, 2012Assignee: Raydiance, Inc.Inventor: Laurent Vaissié
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Patent number: 8150271Abstract: A chirped pulse amplification (CPA) system and method is described wherein the dispersion of the system is tuned by actively tuning one or more system components, for example, using a temperature or strain gradient, or using actinic radiation. In other embodiments, an additional element, such as a modulator, is added to the CPA system to actively to tune the pulse. A pulse monitor is added to the system to measure an output pulse and provide feedback to one or more active tuning elements.Type: GrantFiled: September 21, 2010Date of Patent: April 3, 2012Assignee: Raydiance, Inc.Inventors: James Francis Brennan, III, Laurent Vaissié, Michael Marshall Mielke
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Patent number: 8139910Abstract: A method of controlling an ultra-short pulse system is described comprising controlling an optical power within the ultra-short pulse system and control-system controlling a width of an optical pulse. In some embodiments, the method also comprises tuning a compressor by controlling a number of passes of the optical pulse through a Bragg grating to control the width of the optical pulse output from the compressor. In other embodiments, the method may comprise tuning a multi-pass stretcher by controlling a number of passes of the optical pulse through a loop of the multi-pass stretcher to control the width of the optical pulse output from the multi-pass stretcher. A method of controlling an ultra-short pulse system may also comprise accessing a control system from a remotely located command station, communicating status information from the control system to the command station, and communicating information from the command station to the control system.Type: GrantFiled: October 27, 2008Date of Patent: March 20, 2012Assignee: Raydiance, Inc.Inventors: Andrew D. Stadler, David Goldman, Mark Farley, Michael M. Mielke, Kyungbum Kim, Laurent Vaissié, Robert G. Waarts, Michael J. Cumbo
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Patent number: 8135050Abstract: A chirped pulse amplification system includes one or more polarization compensator configured to compensate for polarization altering elements with the chirped pulse amplification system. The polarization compensator is responsive to a sensor configured to provide feedback to the polarization compensator. In some embodiments, the chirped pulse amplification system further includes a controller configured to automatically adjust the polarization compensator responsive to the sensor. The sensor is optionally a power sensor.Type: GrantFiled: July 19, 2006Date of Patent: March 13, 2012Assignee: Raydiance, Inc.Inventors: Andrew D. Stadler, Michael Marshall Mielke, Laurent Vaissié, Ismail Tolga Yilmaz, Thomas Saunders
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Patent number: 7835646Abstract: The present invention generally concerns the use of Bragg optical fibers in chirped pulse amplification systems for the production of high-pulse-energy ultrashort optical pulses. A gas-core Bragg optical fiber waveguide can be advantageously used in such systems to stretch the duration of pulses so that they can be amplified, and/or Bragg fibers can be used to compress optical signals into much shorter duration pulses after they have been amplified. Bragg fibers can also function as near-zero-dispersion delay lines in amplifier sections.Type: GrantFiled: May 24, 2006Date of Patent: November 16, 2010Assignee: Raydiance, Inc.Inventors: Laurent Vaissié, James Francis Brennan, III
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Patent number: 7822347Abstract: A chirped pulse amplification (CPA) system and method is described wherein the dispersion of the system is tuned by actively tuning one or more system components, for example, using a temperature or strain gradient, or using actinic radiation. In other embodiments, an additional element, such as a modulator, is added to the CPA system to actively to tune the pulse. A pulse monitor is added to the system to measure an output pulse and provide feedback to one or more active tuning elements.Type: GrantFiled: March 28, 2006Date of Patent: October 26, 2010Assignee: Raydiance, Inc.Inventors: James Francis Brennan, III, Laurent Vaissié, Michael Marshall Mielke
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Patent number: 7787175Abstract: A chirped pulse amplification (CPA) system and method is described wherein a pulse selector is added after a final amplifier in the system. The pulse selector is configured to select amplified pulses such that the system output repetition rate of the CPA system is below an ASE-limiting repetition rate of the amplifiers. The system may also comprise pulse pickers placed before the final amplifier to control pulse energy of the amplified pulses.Type: GrantFiled: November 28, 2006Date of Patent: August 31, 2010Assignee: Raydiance, Inc.Inventors: James F. Brennan, III, Laurent Vaissié, Michael Mielke, Tolga Yilmaz
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Publication number: 20090323740Abstract: A method of controlling an ultra-short pulse system is described comprising controlling an optical power within the ultra-short pulse system and control-system controlling a width of an optical pulse. In some embodiments, the method also comprises tuning a compressor by controlling a number of passes of the optical pulse through a Bragg grating to control the width of the optical pulse output from the compressor. In other embodiments, the method may comprise tuning a multi-pass stretcher by controlling a number of passes of the optical pulse through a loop of the multi-pass stretcher to control the width of the optical pulse output from the multi-pass stretcher. A method of controlling an ultra-short pulse system may also comprise accessing a control system from a remotely located command station, communicating status information from the control system to the command station, and communicating information from the command station to the control system.Type: ApplicationFiled: October 27, 2008Publication date: December 31, 2009Inventors: Andrew D. Stadler, David Goldman, Mark Farley, Michael M. Mielke, Kyungbum Kim, Laurent Vaissié, Robert G. Waarts, Michael J. Cumbo
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Patent number: 7593441Abstract: The present invention generally concerns the use of Bragg optical fibers in chirped pulse amplification systems for the production of high-pulse-energy ultrashort optical pulses. A gas-core Bragg optical fiber waveguide can be advantageously used in such systems to stretch the duration of pulses so that they can be amplified, and/or Bragg fibers can be used to compress optical signals into much shorter duration pulses after they have been amplified. Bragg fibers can also function as near-zero-dispersion delay lines in amplifier sections.Type: GrantFiled: January 7, 2008Date of Patent: September 22, 2009Assignee: Raydiance, Inc.Inventors: James F. Brennan, III, Laurent Vaissie, Michael Mielke
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Patent number: 7444049Abstract: A chirped pulse amplification (CPA) system and method is described wherein the pulse is stretched using multiple passes through a Bragg grating or compressed using multiple passes through a Bragg grating. A switch may be used to control the number of passes through the Bragg grating, thus, tuning the compressed or the stretched pulse width. The pulse may be directed through an amplifier between the multiple passes through the Bragg grating to apply amplification to the stretched pulse multiple times. The Bragg grating may include a fiber Bragg grating, a volume Bragg grating, or a Bragg waveguide.Type: GrantFiled: December 22, 2006Date of Patent: October 28, 2008Assignee: Raydiance, Inc.Inventors: Kyungbum Kim, Laurent Vaissié, Robert G. Waarts, Andrew Stadler, Michael J. Cumbo
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Patent number: 7436866Abstract: Optical systems configured for both changing the length of a laser pulse and operating as an optical isolator are disclosed. In some embodiments, optical isolation is achieve contemporaneously with laser pulse expansion or compression by using a grating based compressor or expander as one of the polarization elements of the optical isolator. In some embodiments, optical isolation is achieved contemporaneously with laser pulse expansion or compression by using a mode converter and a Bragg fiber as one of the polarization elements of the optical isolator. In some embodiments, a sub-wavelength polarizer including magnetic garnet is included in the optical isolator.Type: GrantFiled: November 30, 2005Date of Patent: October 14, 2008Assignee: Raydiance, Inc.Inventors: Laurent Vaissié, James Francis Brennan, III
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Publication number: 20080159346Abstract: The present invention generally concerns the use of Bragg optical fibers in chirped pulse amplification systems for the production of high-pulse-energy ultrashort optical pulses. A gas-core Bragg optical fiber waveguide can be advantageously used in such systems to stretch the duration of pulses so that they can be amplified, and/or Bragg fibers can be used to compress optical signals into much shorter duration pulses after they have been amplified. Bragg fibers can also function as near-zero-dispersion delay lines in amplifier sections.Type: ApplicationFiled: January 7, 2008Publication date: July 3, 2008Inventors: James F. Brennan, Laurent Vaissie, Michael Mielke
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Patent number: 7349452Abstract: The present invention generally concerns the use of Bragg optical fibers in chirped pulse amplification systems for the production of high-pulse-energy ultrashort optical pulses. A gas-core Bragg optical fiber waveguide can be advantageously used in such systems to stretch the duration of pulses so that they can be amplified, and/or Bragg fibers can be used to compress optical signals into much shorter duration pulses after they have been amplified. Bragg fibers can also function as near-zero-dispersion delay lines in amplifier sections.Type: GrantFiled: April 22, 2005Date of Patent: March 25, 2008Assignee: Raydiance, Inc.Inventors: James F. Brennan, III, Laurent Vaissie, Michael Mielke
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Publication number: 20070121686Abstract: Optical systems configured for both changing the length of a laser pulse and operating as an optical isolator are disclosed. In some embodiments, optical isolation is achieve contemporaneously with laser pulse expansion or compression by using a grating based compressor or expander as one of the polarization elements of the optical isolator. In some embodiments, optical isolation is achieved contemporaneously with laser pulse expansion or compression by using a mode converter and a Bragg fiber as one of the polarization elements of the optical isolator. In some embodiments, a sub-wavelength polarizer including magnetic garnet is included in the optical isolator.Type: ApplicationFiled: November 30, 2005Publication date: May 31, 2007Inventors: Laurent Vaissie, James Brennan
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Patent number: 7194016Abstract: Our wafer scale processing techniques produce chip-laser-diodes with a diffraction grating (78) that redirects output light out the top (88) and/or bottom surfaces. Generally, a diffraction grating (78) and integrated lens-grating (78) are used herein to couple light from the chip to an output fiber (74), and the lens-grating (78) is spaced from the diffraction grating (76). Preferably the diffraction grating (76) and integrated lens grating (78) are also used to couple light from the output fiber (74) back to the active region of the chip. The integrated lens-grating (78) can be in a coupling block (82). The use of a coupling block (82) can eliminate “facet-type damage”. A coupling block (82) is generally used herein to couple light from the chip to an output fiber (74), and preferably to couple feedback reflected from the fiber (74) back to the chip.Type: GrantFiled: March 22, 2002Date of Patent: March 20, 2007Assignees: The Research Foundation of the University of Central Florida, Infinite Photonics, Inc.Inventors: Jeff A. Bullington, Richard A. Stoltz, Laurent Vaissie, Eric G. Johnson, M. Gamal Moharam
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Patent number: 7139116Abstract: Optical systems configured for both changing the length of a laser pulse and operating as an optical isolator are disclosed. In some embodiments, optical isolation is achieve contemporaneously with laser pulse expansion or compression by using a grating based compressor or expander as one of the polarization elements of the optical isolator. In some embodiments, optical isolation is achieved contemporaneously with laser pulse expansion or compression by using a mode converter and a Bragg fiber as one of the polarization elements of the optical isolator. In some embodiments, a sub-wavelength polarizer including magnetic garnet is included in the optical isolator. In some embodiments, an optical isolator is disposed between a final pulse amplifier and a target material in order to prevent light resulting from the delivery of an amplified laser pulse to the target material from traveling back to the final pulse amplifier.Type: GrantFiled: January 17, 2006Date of Patent: November 21, 2006Assignee: Raydiance,Inc.Inventors: Laurent Vaissié, James Francis Brennan, III
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Publication number: 20060210275Abstract: The present invention generally concerns the use of Bragg optical fibers in chirped pulse amplification systems for the production of high-pulse-energy ultrashort optical pulses. A gas-core Bragg optical fiber waveguide can be advantageously used in such systems to stretch the duration of pulses so that they can be amplified, and/or Bragg fibers can be used to compress optical signals into much shorter duration pulses after they have been amplified. Bragg fibers can also function as near-zero-dispersion delay lines in amplifier sections.Type: ApplicationFiled: May 24, 2006Publication date: September 21, 2006Inventors: Laurent Vaissie, James Brennan