1 × 4 wavelength reconfigurable photonic switch using thermally tuned microring resonators fabricated on silicon substrate

Han Yong Ng, Michael R. Wang, Daqun Li, Xuan Wang, Jose Martinez, Roberto R. Panepucci, Kachesh Pathak

Research output: Contribution to journalArticle

30 Scopus citations

Abstract

We report a 1 × 4 wavelength reconfigurable photonic switch based on thermally tuned microring resonators (MRs) fabricated on a silicon-on-insulator substrate. The high refractive index of silicon facilitates the formation of highly confined optical waveguides and MRs. With a fabricated ring diameter of about 10 μm, the MRs support 18-nm free-spectral range and 0.15-nm resonant spectral linewidth. Many wavelength channels can be selected through local thermal tuning of resonators for reconfigurable switching and wavelength-division multiplexing/demultiplexing. The switch response time is about 1 ms. The results suggest the feasibility of high port-count photonic circuitry with dynamic wavelength reconfiguration capability for the development of large-scale integrated photonics.

Original languageEnglish (US)
Pages (from-to)704-706
Number of pages3
JournalIEEE Photonics Technology Letters
Volume19
Issue number9
DOIs
StatePublished - May 1 2007

Keywords

  • Microring resonator (MR)
  • Photonic switch
  • Thermooptic
  • Tuning

ASJC Scopus subject areas

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

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