• Prof.  Lin Yang
  • Prof. Lin Yang
  • Chinese Academy of Sciences, China
  • Title: Optical modulators and routers for Photonic Networks-on-Chip
  • Abstract:

    The performance of chip multiprocessor (CMP) is determined not only by the number of the processor cores integrated on a die, but also by how efficiently they collaborate with each other. With more processor cores being integrated on a die, interconnects in CMP gradually move from traditional bus interconnects to more sophisticated networks-on-chip (NoC). With CMP continuously requiring more communication bandwidths, metallic-based electrical NoC gradually becomes the bottleneck for improving the performance of CMP due to its high power consumption, limited bandwidth and long latency. Recent studies have demonstrated that photonic NoC is a potential solution to overcome the limitations of its electrical counterpart.

    Many architectures for photonic NoC have been widely studied, such as Mesh, Fat Tree and Clos. A series of optical devices are required to construct the optical interconnect between two processor cores, such as lasers, modulators, multiplexers, waveguides, de-multiplexers and detectors. Such a point-to-point interconnect is the simplest communication mode. However, for network application environment, the processor core is required to communicate with other processor cores. This function is usually completed by optical router, which is located at each node of photonic NoC and connects the local processor core with other remote nodes.

    In this paper, we will review the status of optical modulators and routers for photonic networks-on-chip and introduce our efforts on these topics. In the first section, we will introduce the 40 Gb/s carrier-depletion Mach-Zehnder silicon optical modulator with the extinction ratio of 15 dB. In the second section, we will introduce the 5-port optical router for Mesh photonic NoC and a universal method for constructing N-port non-blocking optical router for photonic NoC.

  • Biography:

    Lin Yang (M’11) received his Ph. D. degree in microelectronics and solid state electronics from Institute of Semiconductors, Chinese Academy of Sciences,Beijing,China, in 2003. From 2003 to 2007, he was a postdoctoral fellow of Research Center for Integrated Quantum Electronics, Hokkaido University, Sapporo, Japan. He is currently a professor in State Key Laboratory on Integrated Optoelectronics, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, China. His current research interests include silicon-based photonic devices for optical interconnect, optical computing and optical communication. He is the author or coauthor of more than 60 refereed scientific journal papers.Details can be found in the homepage of our group: http://oip.semi.cas.cn/.

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Important Dates
November 28-30, 2014
Paper or Abstract Submission Due:
October 17, 2014
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