Patents by Inventor Gerd Keiser

Gerd Keiser 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).

  • Fiber ring laser system and the operation method thereof
    Patent number: 8315281
    Abstract: A wavelength-tunable directly modulated fiber ring laser is provided. Generally speaking, the wavelength-tunable directly modulated fiber ring laser employs an RSOA (reflective semiconductor optical amplifier) and an OTF (optical tunable filter) to construct a novel ring resonant cavity. Additionally, a signal generator can be further employed to transmit modulated signals to the RSOA, whereby generating light wave with the modulated signals, so as to provide tunable wave-length and direct modulation at the same time.
    Type: Grant
    Filed: March 19, 2011
    Date of Patent: November 20, 2012
    Assignee: National Taiwan University of Science and Technology
    Inventors: Zih-Rong Lin, Cheng-Kuang Liu, Yu-Jhu Jhang, Gerd Keiser
  • Signal switching module for optical network monitoring and fault locating
    Patent number: 8311409
    Abstract: The present invention provides an optical signal-selection switch module which is used in a method for simultaneous real-time status monitoring and troubleshooting of a high-capacity single-fiber hybrid passive optical network that is based on wavelength-division-multiplexing techniques.
    Type: Grant
    Filed: November 18, 2009
    Date of Patent: November 13, 2012
    Assignee: National Taiwan University of Science and Technology
    Inventors: Chu-Lin Chang, Gerd Keiser, Shien-Kuei Liaw, Yu-Sheng Huang
  • Bidirectional multi-wavelength optical signal routing and amplification module
    Patent number: 8306417
    Abstract: The present invention provides a bidirectional optical signal traffic-directing and amplification module which is used in a method for simultaneous real-time status monitoring and troubleshooting of a high-capacity single-fiber hybrid passive optical network that is based on wavelength-division-multiplexing techniques.
    Type: Grant
    Filed: November 18, 2009
    Date of Patent: November 6, 2012
    Assignee: National Taiwan University of Science and Technology
    Inventors: Chu-Lin Chang, Gerd Keiser, Shien-Kuei Liaw, Yu-Sheng Huang
  • Fiber Ring Laser System and the Operation Method thereof
    Publication number: 20120170600
    Abstract: A wavelength-tunable directly modulated fiber ring laser is provided. Generally speaking, the wavelength-tunable directly modulated fiber ring laser employs an RSOA (reflective semiconductor optical amplifier) and an OTF (optical tunable filter) to construct a novel ring resonant cavity. Additionally, a signal generator can be further employed to transmit modulated signals to the RSOA, whereby generating light wave with the modulated signals, so as to provide tunable wave-length and direct modulation at the same time.
    Type: Application
    Filed: March 19, 2011
    Publication date: July 5, 2012
    Applicant: National Taiwan University of Science and Technology
    Inventors: Zih-Rong LIN, Cheng-Kuang LIU, Yu-Jhu JHANG, Gerd KEISER
  • BIDIRECTIONAL MULTI-WAVELENGTH OPTICAL SIGNAL ROUTING AND AMPLIFICATION MODULE
    Publication number: 20100316373
    Abstract: The present invention provides a bidirectional optical signal traffic-directing and amplification module which is used in a method for simultaneous real-time status monitoring and troubleshooting of a high-capacity single-fiber hybrid passive optical network that is based on wavelength-division-multiplexing techniques.
    Type: Application
    Filed: November 18, 2009
    Publication date: December 16, 2010
    Inventors: Chu-Lin Chang, Gerd Keiser, Shien-Kuei Liaw, Yu-Sheng Huang
  • SIGNAL SWITCHING MODULE FOR OPTICAL NETWORK MONITORING AND FAULT LOCATING
    Publication number: 20100316372
    Abstract: The present invention provides an optical signal-selection switch module which is used in a method for simultaneous real-time status monitoring and troubleshooting of a high-capacity single-fiber hybrid passive optical network that is based on wavelength-division-multiplexing techniques.
    Type: Application
    Filed: November 18, 2009
    Publication date: December 16, 2010
    Inventors: Chu-Lin Chang, Gerd Keiser, Shien-Kuei Liaw, Yu-Sheng Huang