Integrated optical 2 × 2 switch for wavelength multiplexed interconnects

Kevin A. Williams, Guy F. Roberts, Tao Lin, Richard V. Penty, Ian H. White, Madeleine Glick, Derek McAuley

Research output: Contribution to journalArticlepeer-review

53 Citations (SciVal)


A highly compact integrated optical switch is proposed and demonstrated for broadband optical switching applications. Routing of 8 × 10 Gb/s data channels is demonstrated using a low-cost 1250-Mb/s control scheme. The advantages of lossless operation, broad optical bandwidth, and nanosecond switching times are leveraged. Multichannel wavelength is exploited for reduced latency, enhanced capacity, and functionality, while retaining compatibility with existing off-the-shelf electronics and transceiver technology. The requirements for optical header processing, wavelength translation, and optical buffering are avoided. Low-penalty multiwavelength transmission is demonstrated for a highly compact sub-mm2 amplifying 2 × 2 switch. Pattern dependent gain and amplified spontaneous emission are minimized to facilitate 0.0-0.4 dB penalty. Mitigation techniques compatible with the architecture are deployed to reduce the penalty under adverse operating conditions. Control schemes are proposed and demonstrated to facilitate 8 × 10 Gb/s optically switched networking.

Original languageEnglish
Pages (from-to)78-85
Number of pages8
JournalIEEE Journal on Selected Topics in Quantum Electronics
Issue number1
Publication statusPublished - 1 Jan 2005


  • Integrated optoelectronics
  • Optical interconnection
  • Optical switches
  • Packet switching
  • Semiconductor optical amplifiers (SOAs)
  • Wavelength division multiplexing (WDM)

ASJC Scopus subject areas

  • Ceramics and Composites
  • Atomic and Molecular Physics, and Optics
  • Materials Chemistry
  • Electrical and Electronic Engineering


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