Presentation 2019-07-19
SQAM signal recording by two-step exposure method using interleaved phase page for holographic memories
Satoshi Honma, Haruki Funakoshi,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Spatial quadrature amplitude modulation (SQAM) signal whose amplitude and phase are individually modulated to multi-level have been expected to be used for improvement of recording capacity of holographic memory. We have proposed two exposure method (TEM) in which the two holograms for different phase modulated signal is multiplex recorded in the same position and it synthesize the hologram for SQAM signal. In this report, we design new phase pages for TEM by investigating the holographic distribution formed in the memory and show it is possible to suppress the amount of monomer consumed wastefully for the recording SQAM signal by using the new phase pages.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Holographic memory / Two-exposure method / Spatial quadrature amplitude modulation signal
Paper # MRIS2019-10
Date of Issue 2019-07-12 (MRIS)

Conference Information
Committee MRIS / ITE-MMS
Conference Date 2019/7/19(1days)
Place (in Japanese) (See Japanese page)
Place (in English) Kogakuin Univ.
Topics (in Japanese) (See Japanese page)
Topics (in English) Solid State Memory, Media, etc.
Chair Satoshi Matsunuma(Maxell) / Akihiko Ishii(NHK)
Vice Chair
Secretary (Toshiba) / (Kindai Univ.)
Assistant Ikuya Tagawa(Tohoku Inst. of Tech.) / Hiroko Arai(AIST)

Paper Information
Registration To Technical Committee on Magnetic Recording & Information Storage / Technical Group on Multi-media Storage
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) SQAM signal recording by two-step exposure method using interleaved phase page for holographic memories
Sub Title (in English)
Keyword(1) Holographic memory
Keyword(2) Two-exposure method
Keyword(3) Spatial quadrature amplitude modulation signal
1st Author's Name Satoshi Honma
1st Author's Affiliation Yamanashi University(Yamanashi Univ.)
2nd Author's Name Haruki Funakoshi
2nd Author's Affiliation Yamanashi University(Yamanashi Univ.)
Date 2019-07-19
Paper # MRIS2019-10
Volume (vol) vol.119
Number (no) MRIS-136
Page pp.pp.11-16(MRIS),
#Pages 6
Date of Issue 2019-07-12 (MRIS)