Fast aberration-correcting algorithm for an SLM-based optical switch

Keisuke Sorimoto, Kenji Kintaka, Hitoshi Kawashima, Masahiko Mori, Toshifumi Hasama, Hiroshi Ishikawa, Hiroyuki Tsuda, Hisato Uetsuka

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


We propose a novel method to efficiently correct the aberration in a free-space optical switch, where a spatial light modulator (SLM) is used to control wavefronts. A particle swarm optimization (PSO) method is applied to finding the optimum set of Zernike modes to compensate the aberration. We find out that the obtained coefficients of the lower-order modes and those of the higher-order ones exhibit a linear relationship when the optimization flow is interrupted by the local optima. We can drastically reduce the time for the calibration by using this relationship among the Zernike coefficients.

Original languageEnglish
Pages (from-to)1728-1734
Number of pages7
JournalIEICE Electronics Express
Issue number23
Publication statusPublished - 2010 Dec


  • Aberration correction
  • Optical switch
  • Particle swarm optimization
  • Spatial light modulator

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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