Shape-preserving and unidirectional frequency conversion by four-wave mixing

Jesper Bjerge Christensen, Jacob Gade Koefoed, B. A. Bell, C.J. McKinstrie*, K Rottwitt

*Corresponding author for this work

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In this work, we investigate the properties of four-wave mixing Bragg scattering driven by orthogonally polarized pumps in a birefringent waveguide. This configuration enables a large signal conversion bandwidth, and allows strongly unidirectional frequency conversion as undesired Bragg-scattering processes are suppressed by waveguide birefringence. Moreover, we show that this form of Bragg scattering preserves the (arbitrary) signal pulse shape, even when driven by pulsed pumps.
Original languageEnglish
JournalOptics Express
Issue number13
Pages (from-to)17145-17457
Publication statusPublished - 2018


  • Electromagnetic Waves
  • Waveguides
  • Light and Optics
  • Birefringence
  • Electromagnetic wave scattering
  • Bragg scattering
  • Large-signals
  • Shape-preserving
  • Signal pulse
  • Waveguide birefringence
  • Four wave mixing

Cite this

Christensen, J. B., Koefoed, J. G., Bell, B. A., McKinstrie, C. J., & Rottwitt, K. (2018). Shape-preserving and unidirectional frequency conversion by four-wave mixing. Optics Express, 26(13), 17145-17457.