Fast and low-power thermooptic switch on thin silicon-on-insulator

  title={Fast and low-power thermooptic switch on thin silicon-on-insulator},
  author={R. Espinola and M. C. Tsai and J. T. Yardley and R B Osgood},
  journal={IEEE Photonics Technology Letters},
We have designed and fabricated Mach-Zehnder interferometer thermooptic switches using a wafer-bonded thin-silicon-on-insulator materials system. The thermally switched devices use single-mode strip waveguides with dimensions 0.26/spl times/0.6 /spl mu/m/sup 2/, operating at a wavelength of /spl lambda/=1.55 /spl mu/m. Useful device characteristics include a low switching power, 50 mW, and a fast rise time of <3.5 /spl mu/s. These results demonstrate the potential of this high-index-contrast… CONTINUE READING

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