Presentation 2020-11-12
Wave front compensation method for output signal in volume hologram demultiplexer
Hotaka Hayashi, Atsushi Okamoto, Taketoshi Takahata, Satoshi Shinada, Yuta Goto, Naoya Wada, Kazuhisa Ogawa, Akihisa Tomita,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Volume Hologram mode De-Multiplexer (VHDM) using Volume Hologram (VH) is extremely cost effective because it can multiplex and separate mode-division multiplex signals at once, and is expected to be put into practical use. However, it has been reported that due to the limitation of the physical diffraction efficiency of VH, a coupling loss of about -1.3 dB occurs when demodulating from the higher-order mode to the basic mode. In this study, we tried to recover the dissipated power by displaying the phase obtained by the deconvolution method on the spatial light modulator on numerical simulation. As a result, coupling power was improved by up to 1.72 dB with respect to SMF, and the signal power could be compensated.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Space Division Multiplexing / Mode Division Multiplexing / Mode Demultiplexer / Volume Hologram
Paper # OCS2020-25
Date of Issue 2020-11-05 (OCS)

Conference Information
Committee OFT / ITE-BCT / OCS / IEE-CMN
Conference Date 2020/11/12(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Online
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Yuji Matsuura(Tohoku Univ.) / / Joji Maeda(Tokyo Univ. of Science) / Shun Morimura(CRIEPI)
Vice Chair / / / Kouji Hirata(Kansai Univ)
Secretary (NTT) / (Sumitomo Electric) / / Kouji Hirata(NTT)
Assistant Hajime Arao(Sumitomo Electric) / Yukihiro Goto(NTT) / / / Yuuichi Shinohara(TEPCO Power Grid) / Akihiro Tanaka(CRIEPI)

Paper Information
Registration To Technical Committee on Optical Fiber Technology / Technical Group on Broadcasting Technology / Technical Committee on Optical Communication Systems / Technical Meeting on Communications
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Wave front compensation method for output signal in volume hologram demultiplexer
Sub Title (in English)
Keyword(1) Space Division Multiplexing
Keyword(2) Mode Division Multiplexing
Keyword(3) Mode Demultiplexer
Keyword(4) Volume Hologram
1st Author's Name Hotaka Hayashi
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 Taketoshi Takahata
3rd Author's Affiliation OPTOQUEST Co., Ltd.(OPTOQUEST)
4th Author's Name Satoshi Shinada
4th Author's Affiliation National Institute of Information Communications Technology(NICT)
5th Author's Name Yuta Goto
5th Author's Affiliation National Institute of Information Communications Technology(NICT)
6th Author's Name Naoya Wada
6th Author's Affiliation National Institute of Information Communications Technology(NICT)
7th Author's Name Kazuhisa Ogawa
7th Author's Affiliation Hokkaido University(Hokkaido Univ.)
8th Author's Name Akihisa Tomita
8th Author's Affiliation Hokkaido University(Hokkaido Univ.)
Date 2020-11-12
Paper # OCS2020-25
Volume (vol) vol.120
Number (no) OCS-229
Page pp.pp.11-14(OCS),
#Pages 4
Date of Issue 2020-11-05 (OCS)