Current Research Interests

Lightwave Networks

The objectives of this research are to design, develop, and understand the properties of various architectures for the next generation of lightwave networks, which can be deployed over local, access, metropolitan, and wide areas. These networks exploit the capabilities of evolving lightwave technology, e.g., dense wavelength division multiplexing (WDM) and tunable optical transceivers. How existing fiber-based electronic networks can be upgraded to accommodate WDM (and hence a few orders of bandwidth increase) is being examined, e.g., Internet Protocol (IP) over WDM. Other topics being examined include developing using accurate device models (amplifier gain spectra, switch crostalk, fiber non-linearities, etc.) to perform call admission and signal regenera- tion, multicast optical switch architectures, network control and management, fault management, traffic groom- ing in SONET/WDM ring and mesh networks, photonic packet switching for lightwave WANs, optical access networks, long-reach broadband access networks, hybrid wireless-optical broadband access networks (WOBAN), Carrier Ethernet, dynamic optical circuit switching (DOCS), multi-path routing, network upgrade to accommodate traffic growth, 100G transmission systems, energy efficiency, etc.

Specific Research Areas

  • Optical Networks
  • Energy-Efficiency
  • Disaster Resilience
  • Broadband Access