Ultrahigh-bandwidth silicon photonic nanowire waveguides for on-chip networks

Bejamin G. Lee, Xiaogang Chen, Aleksandr Biberman, Xiaoping Liu, I. Wei Hsieh, Cheng Yun Chou, Jerry I. Dadap, Fengnian Xia, William M.J. Green, Lidija Sekaric, Yurii A. Vlasov, Richard M. Osgood, Bergman Bergman

Research output: Contribution to journalArticlepeer-review


An investigation of signal integrity in silicon photonic nanowire waveguides is performed for wavelength-division- multiplexed optical signals. First, we demonstrate the feasibility of ultrahigh-bandwidth integrated photonic networks by transmitting a 1.28-Tb/s data stream (32 wavelengths × 40-Gb/s) through a 5-cm-long silicon wire. Next, the crosstalk induced in the highly confined waveguide is evaluated, while varying the number of wavelength channels, with bit-error-rate measurements at 10 Gb/s per channel. The power penalty of a 24-channel signal is 3.3 dB, while the power penalty of a single-channel signal is 0.6 dB. Finally, single-channel power penalty measurements are taken over a wide range of input powers and indicate negligible change for launch powers of up to 7 dBm.

Original languageEnglish (US)
Pages (from-to)398-400
Number of pages3
JournalIEEE Photonics Technology Letters
Issue number6
StatePublished - Mar 15 2008
Externally publishedYes


  • Multiprocessor interconnection
  • Optical communication
  • Optical crosstalk
  • Optical waveguides
  • Wavelength-division multiplexing (WDM)

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering


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