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Continuous-wave mid-infrared frequency conversion in silicon nanowaveguides.

Ryan K W Lau1, Michaël Ménard, Yoshitomo Okawachi

  • 1School of Applied and Engineering Physics, Cornell University, Ithaca, New York 14853, USA. rkl48@cornell.edu

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We demonstrated continuous-wave wavelength conversion from telecommunication bands to the mid-infrared (MIR) region using silicon nanowaveguides. This breakthrough enables new MIR devices by leveraging silicon photonics technology.

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Area of Science:

  • Photonics
  • Materials Science
  • Optical Engineering

Background:

  • Mid-infrared (MIR) applications require efficient light sources and converters.
  • Silicon photonics offers a promising platform for integrated optical devices.
  • Current methods for MIR wavelength conversion face limitations.

Purpose of the Study:

  • To demonstrate continuous-wave (cw) wavelength conversion from the telecommunications band to the MIR region.
  • To explore the potential of silicon nanowaveguides for MIR applications.
  • To showcase tunable wavelength conversion capabilities.

Main Methods:

  • Utilizing four-wave mixing in silicon nanowaveguides.
  • Performing cw wavelength conversion experiments.
  • Measuring parametric bandwidth and tuning range.

Main Results:

  • Achieved the first demonstration of cw wavelength conversion to the MIR region using silicon nanowaveguides.
  • Measured a parametric bandwidth of 748 nm.
  • Demonstrated continuously tunable wavelength conversion from 1792 to 2116 nm.

Conclusions:

  • Silicon nanowaveguides are effective for MIR wavelength conversion.
  • This technology can be leveraged for various MIR applications requiring cw operation.
  • The demonstrated tunability opens possibilities for versatile MIR photonic devices.