Patents by Inventor Kyle C. Guan

Kyle C. Guan 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).

  • Secure Data Transmission Via Spatially Multiplexed Optical Signals
    Publication number: 20170093503
    Abstract: A system, for example an optical communication system, includes an optical transmitter. The transmitter is configured to direct towards an optical fiber a spatially multiplexed optical signal. The optical fiber is configured to convey data via the multiplexed optical signal from the transmitter to a receiver. The transmitter is configured to set a signal-to-noise ratio (SNR) or a transmission capacity of the multiplexed optical signal to achieve a predetermined secrecy capacity of the transmission.
    Type: Application
    Filed: June 15, 2016
    Publication date: March 30, 2017
    Applicant: Alcatel Lucent
    Inventors: Peter J. Winzer, Kyle C. Guan, Emina Soljanin
  • Optical fibers with varied mode-dependent loss
    Patent number: 9172461
    Abstract: Various embodiments provide for detection of tapping of an optical signal. In one embodiment an optical fiber includes a cladding region and first and second core regions. The first core region has a first core medium having a first mode-dependent loss (MDL) figure of merit. The second core region has a second core medium having a second different MDL figure of merit. Tapping of the optical signal may be determined to occur when the MDL of the first and second optical signals differs by a predetermined threshold value.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: October 27, 2015
    Assignee: Alcatel Lucent
    Inventors: Peter J. Winzer, Kyle C. Guan, Emina Soljanin
  • Optical Fibers With Varied Mode-Dependent Loss
    Publication number: 20140186030
    Abstract: Various embodiments provide for detection of tapping of an optical signal. In one embodiment an optical fiber includes a cladding region and first and second core regions. The first core region has a first core medium having a first mode-dependent loss (MDL) figure of merit. The second core region has a second core medium having a second different MDL figure of merit. Tapping of the optical signal may be determined to occur when the MDL of the first and second optical signals differs by a predetermined threshold value.
    Type: Application
    Filed: December 28, 2012
    Publication date: July 3, 2014
    Inventors: Peter J. Winzer, Kyle C. Guan, Emina Soljanin
  • SECURE DATA TRANSMISSION VIA SPATIALLY MULTIPLEXED OPTICAL SIGNALS
    Publication number: 20140186033
    Abstract: Various embodiments provide secure optical transmission of data. Noise may be added to optical signals transmitted by spatial paths of a multimode optical fiber. The noise may be added electrically prior to modulation, or optically after modulation. In some embodiments a transmitter and a receiver cooperate to maintain a noise level sufficient to place a tapped signal in a noise regime that provides a predetermined level of data security.
    Type: Application
    Filed: December 28, 2012
    Publication date: July 3, 2014
    Applicant: Alcatel-Lucent USA Inc.
    Inventors: Peter J. Winzer, Kyle C. Guan, Emina Soljanin