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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 11, Iss. 12 — Jun. 16, 2003
  • pp: 1378–1384

Design and optimization of an achromatic photonic crystal bend

Jasmin Smajic, Christian Hafner, and Daniel Erni  »View Author Affiliations

Optics Express, Vol. 11, Issue 12, pp. 1378-1384 (2003)

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We perform a simple sensitivity analysis of a W1 waveguide bend in a photonic crystal (PhC) where we use the information obtained to optimize the PhC bend’s frequency response. Within a single optimization step we already achieve very low power reflection coefficients over almost the entire frequency range of the photonic bandgap (PBG), i.e., an achromatic bend. A further analysis shows that there is a single critical rod in the optimized bend structure that exhibits an extraordinary high sensitivity at a given frequency. Hence power reflection becomes tunable from 0% up to 100% involving only small changes in the critical rod’s properties. This opens the door to novel topologies for compact switches and sensor applications.

© 2003 Optical Society of America

OCIS Codes
(130.0130) Integrated optics : Integrated optics
(130.2790) Integrated optics : Guided waves

ToC Category:
Research Papers

Original Manuscript: April 24, 2003
Revised Manuscript: June 4, 2003
Published: June 16, 2003

Jasmin Smajic, Christian Hafner, and Daniel Erni, "Design and optimization of an achromatic photonic crystal bend," Opt. Express 11, 1378-1384 (2003)

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