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Journal of the Optical Society of America B

Journal of the Optical Society of America B


  • Editor: Henry van Driel
  • Vol. 27, Iss. 2 — Feb. 1, 2010
  • pp: 343–349

Directional emission from photonic crystal waveguide terminations using particle swarm optimization

M. Sathish Kumar, Sergey Menabde, Sunkyu Yu, and Namkyoo Park  »View Author Affiliations

JOSA B, Vol. 27, Issue 2, pp. 343-349 (2010)

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We report particle swarm optimization (PSO) of photonic crystal (PC) structures through an example of a PC waveguide termination to achieve directional emission. PC waveguide termination is optimized by using the PSO algorithm by evaluating a fitness function by the scattering matrix method. We consider two different structures, reported earlier and designed through intuition and trial and error, for our optimization and compare the results obtained. Our results show that optimizing with PSO can provide more directed and intense beams compared with designs based purely on intuition and trial and error. Compared with the two earlier reported directional emission PC structures, increases in intensity by factors of 1.25 and 2 and decreases in beam divergence by factors of 1.25 and 2.4, respectively, were achieved.

© 2010 Optical Society of America

OCIS Codes
(130.3120) Integrated optics : Integrated optics devices
(220.4830) Optical design and fabrication : Systems design
(130.5296) Integrated optics : Photonic crystal waveguides
(230.5298) Optical devices : Photonic crystals

ToC Category:
Integrated Optics

Original Manuscript: July 30, 2009
Revised Manuscript: December 12, 2009
Manuscript Accepted: December 16, 2009
Published: January 29, 2010

M. Sathish Kumar, Sergey Menabde, Sunkyu Yu, and Namkyoo Park, "Directional emission from photonic crystal waveguide terminations using particle swarm optimization," J. Opt. Soc. Am. B 27, 343-349 (2010)

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