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Proceedings Paper

All-optical demultiplexer based on dynamic multiple holograms for optical MIMO processing and mode division multiplexing
Author(s): Takuya Oda; Atsushi Okamoto; Daiki Soma; Akihisa Tomita; Yuta Wakayama
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Paper Abstract

We propose an all-optical demultiplexer based on dynamic multiple holograms using a photorefractive material for mode division multiplexing and optical MIMO processing systems. This demultiplexer can separate a specific spatial mode from multiplexed modes in a multi-mode fiber. In this study, we clarify a mode separation performance with various combinations of LP modes, and show the signal-to-noise ratio (SNR) can be improved by choosing appropriate mode combinations. In addition, to reveal the dependence of mode separation of the intensity ratio of the recording lights, we study the fluctuation of the SNR for LP0,1 mode by the combinations of multiplexed modes. Moreover, two additional recording techniques with a spatial light modulator (SLM) and phase conjugator are also proposed to improve the performance of the mode separation.

Paper Details

Date Published: 24 January 2011
PDF: 9 pages
Proc. SPIE 7958, Broadband Access Communication Technologies V, 79580J (24 January 2011); doi: 10.1117/12.874427
Show Author Affiliations
Takuya Oda, Hokkaido Univ. (Japan)
Atsushi Okamoto, Hokkaido Univ. (Japan)
Daiki Soma, Hokkaido Univ. (Japan)
Akihisa Tomita, Hokkaido Univ. (Japan)
Yuta Wakayama, Hokkaido Univ. (Japan)

Published in SPIE Proceedings Vol. 7958:
Broadband Access Communication Technologies V
Benjamin Dingel; Raj Jain; Katsutoshi Tsukamoto, Editor(s)

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