Study of High Efficiency Grating Couplers for Silicon-Based Horizontal Slot Waveguides

  title={Study of High Efficiency Grating Couplers for Silicon-Based Horizontal Slot Waveguides},
  author={J. V. Galan and Pablo Sanchis and Jos{\'e} Mar{\'i}a Lozano Blasco and Javier Marti},
  journal={IEEE Photonics Technology Letters},
Horizontal slot waveguides are becoming a very promising waveguide configuration for silicon photonics nonlinear applications. In this letter, the design of grating couplers for highly efficient coupling between standard single-mode fibers and horizontal slot waveguides is reported. Parameters have been optimized to achieve maximum coupling efficiency for lambda = 1550 nm and transverse magnetic polarization. Maximum coupling efficiencies of 61% and 48% have been achieved for negative and… CONTINUE READING
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