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Spatial mode demultiplexing technique using angularly multiplexed volume holograms with a phase plate

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Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/71407

Title: Spatial mode demultiplexing technique using angularly multiplexed volume holograms with a phase plate
Authors: Shimizu, Shimpei Browse this author
Okamoto, Atsushi Browse this author →KAKEN DB
Mizukawa, Fumiya Browse this author
Ogawa, Kazuhisa Browse this author
Tomita, Akihisa Browse this author →KAKEN DB
Takahata, Taketoshi Browse this author
Shinada, Satoshi Browse this author
Wada, Naoya Browse this author
Issue Date: Sep-2017
Publisher: IOP Publishing
Journal Title: Japanese Journal of Applied Physics (JJAP)
Volume: 56
Issue: 9
Start Page: 09NA05
Publisher DOI: 10.7567/JJAP.56.09NA05
Abstract: In this paper, we propose a spatial mode demultiplexing technique that uses a volume holographic demultiplexer (VHDM) with a phase plate. The VHDM can separate the multiplexed spatial modes with a single device by using angularly multiplexed volume holograms. In the VHDM, modal cross-talks, which are called inter-page cross-talks in the holographic data storages, are generated, and hence the separation performance of the VHDM is degraded by the intensity overlap between spatial modes. Therefore, we propose a novel scheme wherein phase modulation with a phase plate is added to the conventional scheme. The proposed scheme can achieve high separation performance by modulating the phase of spatial modes to reduce the intensity overlap. In this study, we demonstrated the basic operation of the proposed method for a specific linearly polarized mode group. The separation performance of the VHDM was observed to be markedly improved by the proposed method. (C) 2017 The Japan Society of Applied Physics
Rights: ©2017 The Japan Society of Applied Physics
Type: article (author version)
URI: http://hdl.handle.net/2115/71407
Appears in Collections:情報科学院・情報科学研究院 (Graduate School of Information Science and Technology / Faculty of Information Science and Technology) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 清水 新平

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