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Paper Abstract and Keywords
Presentation 2019-02-20 13:45
Accuracy improvement of phase modulated signal by calibrating spatial light modulator
Tomohiro Maeda, Atsushi Okamoto, Kazuhisa Ogawa, Akihisa Tomita (Hokkaido Univ.)
Abstract (in Japanese) (See Japanese page) 
(in English) The modulation accuracy of phase-only spatial light modulators (SLMs) decreases by the distortion of the phase response due to the unmodulated light caused by the reflection from the gap of pixel electrodes. The calibration of the phase response of the SLM can improve the modulation accuracy in the case when the modulator to make a multilevel signal for holographic data storage. In this article, we experimentally evaluated a method to calibrate the SLM by obtaining the spatially varying phase response. As results of the calibration, we confirmed that the modulation accuracy of the phase image is improved.
Keyword (in Japanese) (See Japanese page) 
(in English) Spatial light modulator / Holographic memory / Phase modulation / / / / /  
Reference Info. ITE Tech. Rep., vol. 43, no. 5, MMS2019-21, pp. 209-213, Feb. 2019.
Paper # MMS2019-21 
Date of Issue 2019-02-12 (MMS, HI, ME, AIT) 
ISSN Print edition: ISSN 1342-6893  Online edition: ISSN 2424-1970
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Conference Information
Conference Date 2019-02-19 - 2019-02-20 
Place (in Japanese) (See Japanese page) 
Place (in English) Hokkaido Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Image Processing, etc. 
Paper Information
Registration To MMS 
Conference Code 2019-02-ME-IE-ITS-MMS-HI-AIT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Accuracy improvement of phase modulated signal by calibrating spatial light modulator 
Sub Title (in English)  
Keyword(1) Spatial light modulator  
Keyword(2) Holographic memory  
Keyword(3) Phase modulation  
1st Author's Name Tomohiro Maeda  
1st Author's Affiliation Hokkaido University (Hokkaido Univ.)
2nd Author's Name Atsushi Okamoto  
2nd Author's Affiliation Hokkaido University (Hokkaido Univ.)
3rd Author's Name Kazuhisa Ogawa  
3rd Author's Affiliation Hokkaido University (Hokkaido Univ.)
4th Author's Name Akihisa Tomita  
4th Author's Affiliation Hokkaido University (Hokkaido Univ.)
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Date Time 2019-02-20 13:45:00 
Presentation Time 15 
Registration for MMS 
Paper # ITE-MMS2019-21,ITE-HI2019-21,ITE-ME2019-43,ITE-AIT2019-21 
Volume (vol) ITE-43 
Number (no) no.5 
Page pp.209-213 
#Pages ITE-5 
Date of Issue ITE-MMS-2019-02-12,ITE-HI-2019-02-12,ITE-ME-2019-02-12,ITE-AIT-2019-02-12 

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