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

doi:10.1587/elex.7.1728

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

Department of Electronics and Electrical Engineering

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

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 language	English
Pages (from-to)	1728-1734
Number of pages	7
Journal	IEICE Electronics Express
Volume	7
Issue number	23
DOIs	https://doi.org/10.1587/elex.7.1728
Publication status	Published - 2010 Dec

Keywords

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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10.1587/elex.7.1728

Cite this

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abstract = "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.",

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AU - Sorimoto, Keisuke

AU - Kintaka, Kenji

AU - Kawashima, Hitoshi

AU - Mori, Masahiko

AU - Hasama, Toshifumi

AU - Ishikawa, Hiroshi

AU - Tsuda, Hiroyuki

AU - Uetsuka, Hisato

PY - 2010/12

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N2 - 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.

AB - 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.

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KW - Particle swarm optimization

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

Abstract

Keywords

ASJC Scopus subject areas

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