Patents by Inventor Kyungbum Kim

Kyungbum Kim 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).

  • Patent number: 9147992
    Abstract: Systems and methods of high efficiency amplification of pulsed laser output for high energy ultra-short pulse laser systems are provided herein. According to some embodiments, methods for amplifying pulsed laser output for high energy ultra-short pulse laser systems include receiving pulsed laser output and amplifying the pulsed laser output by propagating the pulsed laser output through a non-silica based gain medium that has been doped with a concentration of rare earth ions, wherein the concentration of the rare earth ions within the gain medium is approximately greater than one percent by weight.
    Type: Grant
    Filed: November 9, 2012
    Date of Patent: September 29, 2015
    Assignee: Coherent, Inc.
    Inventors: Xiang Peng, Kyungbum Kim, Michael M. Mielke
  • Publication number: 20140133503
    Abstract: Systems and methods of high efficiency amplification of pulsed laser output for high energy ultra-short pulse laser systems are provided herein. According to some embodiments, methods for amplifying pulsed laser output for high energy ultra-short pulse laser systems include receiving pulsed laser output and amplifying the pulsed laser output by propagating the pulsed laser output through a non-silica based gain medium that has been doped with a concentration of rare earth ions, wherein the concentration of the rare earth ions within the gain medium is approximately greater than one percent by weight.
    Type: Application
    Filed: November 9, 2012
    Publication date: May 15, 2014
    Inventors: Xiang Peng, Kyungbum Kim, Michael M. Mielke
  • Patent number: 8139910
    Abstract: 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: Grant
    Filed: October 27, 2008
    Date of Patent: March 20, 2012
    Assignee: Raydiance, Inc.
    Inventors: Andrew D. Stadler, David Goldman, Mark Farley, Michael M. Mielke, Kyungbum Kim, Laurent Vaissié, Robert G. Waarts, Michael J. Cumbo
  • Publication number: 20090323740
    Abstract: 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: Application
    Filed: October 27, 2008
    Publication date: December 31, 2009
    Inventors: Andrew D. Stadler, David Goldman, Mark Farley, Michael M. Mielke, Kyungbum Kim, Laurent Vaissié, Robert G. Waarts, Michael J. Cumbo
  • Patent number: 7561605
    Abstract: Methods, devices and systems for generating ultrashort optical linear chirped pulses with very high power by amplifying the pulses so that their temporal duration is longer than the storage time of the amplifying medium. The additional gain factor is related to the ratio of the storage time to the stretched pulse. A preferred embodiment connects a mode locked laser source that generates optical pulses whose duration is stretched with a chirped fiber Bragg grating. Embodiments include methods, devices and systems causing an extreme chirped pulse amplifier (XCPA) effect in an oscillator.
    Type: Grant
    Filed: June 2, 2006
    Date of Patent: July 14, 2009
    Assignee: University of Central Florida Research Foundation, Inc
    Inventors: Peter J. Delfyett, Kyungbum Kim, Bojan Resan
  • Patent number: 7558302
    Abstract: Methods, devices and systems for generating ultrashort optical linear chirped pulses with very high power by amplifying the pulses so that their temporal duration is longer than the storage time of the amplifying medium. The additional gain factor is related to the ratio of the storage time to the stretched pulse. A preferred embodiment connects a mode locked laser source that generates optical pulses whose duration is stretched with a chirped fiber Bragg grating. Embodiments include methods, devices and systems causing an extreme chirped pulse amplifier (XCPA) effect in an oscillator.
    Type: Grant
    Filed: March 16, 2007
    Date of Patent: July 7, 2009
    Assignee: University of Central Florida Research Foundation, Inc.
    Inventors: Peter Delfyett, Kyungbum Kim, Bojan Resan
  • Patent number: 7444049
    Abstract: 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: Grant
    Filed: December 22, 2006
    Date of Patent: October 28, 2008
    Assignee: Raydiance, Inc.
    Inventors: Kyungbum Kim, Laurent Vaissié, Robert G. Waarts, Andrew Stadler, Michael J. Cumbo
  • Patent number: 7372551
    Abstract: Provided are systems and methods for long-range, high-resolution, laser radar range detection. In one embodiment such a system includes an optical pulse modifier configured generated a stretched optical pulse and an optical amplifier configured to increase an optical power of the stretched optical pulse The system can further include an optical spectrum analyzer configured to determine a wavelength of a spectral peak that results from interference between a first amplified stretched pulse that is reflected from a target and a second amplified stretched pulse that is spectrally reversed.
    Type: Grant
    Filed: July 25, 2006
    Date of Patent: May 13, 2008
    Assignee: University of Central Florida Research Foundation
    Inventors: Peter J. Delfvett, Kyungbum Kim, Leonard Kisimbi, Shinwook Lee
  • Publication number: 20080100823
    Abstract: Provided are systems and methods for long-range, high-resolution, laser radar range detection. In one embodiment such a system includes an optical pulse modifier configured generated a stretched optical pulse and an optical amplifier configured to increase an optical power of the stretched optical pulse The system can further include an optical spectrum analyzer configured to determine a wavelength of a spectral peak that results from interference between a first amplified stretched pulse that is reflected from a target and a second amplified stretched pulse that is spectrally reversed.
    Type: Application
    Filed: July 25, 2006
    Publication date: May 1, 2008
    Inventors: Peter J. Delfyett, Kyungbum Kim, Leonard Kisimbi, Shinwook Lee
  • Patent number: 7095772
    Abstract: Methods, devices and systems for generating ultrashort optical linear chirped pulses with very high power by amplifying the pulses so that their temporal duration is longer than the storage time of the amplifying medium. The additional gain factor is related to the ratio of the storage time to the stretched pulse. A preferred embodiment connects a mode locked laser source that generates optical pulses whose duration is stretched with a chirped fiber Bragg grating. Embodiments include methods, devices and systems causing an extreme chirped pulse amplifier (XCPA) effect in an oscillator.
    Type: Grant
    Filed: April 21, 2004
    Date of Patent: August 22, 2006
    Assignee: Research Foundation of the University of Central Florida, Inc.
    Inventors: Peter J. Delfyett, Kyungbum Kim, Bojan Resan