Theoretical S-Bend Profile for Optimization of Optical Wwaveguide Radiation Losses

  • Mustieles F
  • Ballesteros E
  • Baquero P
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Abstract

High-density optical integrated circuits require curved waveguides
with low radiation losses. The optimization of S-bend profiles that
produce a minimum of pure bending losses is considered. The analytical
profile that optimizes these losses in low-slope S-bends is presented,
assuming an exponential representation for the bending losses per unit
length. On the other hand, a numerical optimization procedure has been
developed for curved waveguides with an arbitrary representation of the
unitary bending losses. Some results are provided for LiNbO3
waveguides, including a comparison between the optimal profile and other
usual S-bend profiles

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Authors

  • F. J. Mustieles

  • E. Ballesteros

  • P. Baquero

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