Silicon photonic switches hybrid-integrated with CMOS drivers

Alexander V. Rylyakov, Clint L. Schow, Benjamin G. Lee, William M.J. Green, Solomon Assefa, Fuad E. Doany, Min Yang, Joris Van Campenhout, Christopher V. Jahnes, Jeffrey A. Kash, Yurii A. Vlasov

Research output: Contribution to journalArticlepeer-review


This paper describes the design and measured performance of three different silicon photonic switches: a 2×2 switch, a 1×2 switch, and a 4×4 switch. All of the devices have been hybrid integrated with a corresponding custom 90-nm CMOS driver. The 2×2 switch is based on a wavelength-insensitive Mach-Zehnder interferometer (WIMZ) and the 1×2 is based on a two-ring resonator. The power dissipation of the 2×2 WIMZ switch was 2 mW from a 1.0-V supply, with measured transition time of 3.9 ns. The 4×4 switch, composed of six 2×2 Mach-Zehnder interferometer (MZI) switches was demonstrated to route 3×40 Gb/s WDM data with BER <; 10-12, with less than -10-dB crosstalk and 7-dB loss.

Original languageEnglish (US)
Article number6071021
Pages (from-to)345-354
Number of pages10
JournalIEEE Journal of Solid-State Circuits
Issue number1
StatePublished - Jan 2012
Externally publishedYes


  • CMOS driver
  • Mach-Zehnder interferometer
  • hybrid integration
  • optical switches
  • silicon photonics

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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