Patents and Book Chapters

Patents

  1. M. Simonetti, B. Khuu, J. Du, X. Hofman, and E. Wong, “Improvements to Positional Feedback Device”, WO 2016/058032 Al, 21 April 2016. “The first spinal correction device using resistors and capacitors.”
  2. E. Wong, C.J. Chang-Hasnain, and X. Zhao, “Optical injection-locking of VCSELs for Wavelength Division Multiplexed Passive Optical Networks (WDM-PONs)”, US Patent 2009/0074019-A1, March 2009. “First ever investigation of VCSELs optically injection-locked by downstream signals in a passive optical network. The use of VCSELs lowers cost and energy consumption at the customer premises, and the exploitation of optical injection locking further removes the need for temperature control.”
  3. E. Wong, C.J. Chang-Hasnain, and X. Zhao, “Novel Fault Monitoring and Localization Scheme using Optically Injection-Locked VCSELs”, Provisional US Patent, B07-082, Dec, 2006. “Novel use of VCSEL top mirror to optically reflect downstream signals to function as monitoring signals for fault detection in the network. Characterization of the fault monitor demonstrates very high sensitivity, low bandwidth requirements and low output power.”
  4. E. Wong, A. Nirmalathas, and C. Lim, “Rapid Asynchronous Monitoring for BER Evaluation in Optical Networks”, International Patent WO/2004/073244, August 2005. “A bit-error-rate (BER) monitoring scheme independent of the data bit-rate and does not necessitate clock recovery and synchronisation. Unlike conventional means of completely recovering bits of data for synchronous monitoring, this novel technique is able to track soft failures of optical links noninvasively.”
  5. C. J. Chae, E. Wong, and R. S. Tucker, “Optical CSMA/CD Technique”, US Patent 2005/0078958 A1, Apr. 2005. “Novel use of carrier-sensing circuit and optical loopbacks in the remote node to provide optical collision detection and avoidance feature in an Ethernet passive optical access network.”

Book Chapters

  1. E. Wong, M.P.I. Dias, Z. Li, and L. Yi, “Broadband Passive Optical Access Networks” in Encyclopaedia of Modern Optics II, Oxford, UK: Elsevier Inc., 2018, pp. 73-86.
  2. E. Wong (in press), “Optical Communications Systems: LAN, MAN, and WAN” in Encyclopaedia of Modern Optics II, Oxford, UK: Elsevier Inc.
  3. E. Wong, “Chapter 3: Optical Technologies in PON” in Passive Optical Network Technologies, C. F. Lam, Ed. Oxford, UK: Elsevier Limited, 2007, pp. 87 – 149.
  4. E. Wong, “Local Area Networks” in Encyclopaedia of Modern Optics, Oxford, UK: Elsevier Limited, 2004.