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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 10 — May. 20, 2013
  • pp: 12920–12933

Mode demultiplexer using angularly multiplexed volume holograms

Yuta Wakayama, Atsushi Okamoto, Kento Kawabata, Akihisa Tomita, and Kunihiro Sato  »View Author Affiliations


Optics Express, Vol. 21, Issue 10, pp. 12920-12933 (2013)
http://dx.doi.org/10.1364/OE.21.012920


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Abstract

This study proposes a volume holographic demultiplexer (VHDM) for extracting the spatial modes excited in a multimode fiber. A unique feature of the demultiplexer is that it can separate a number of multiplexed modes output from a fiber in different directions by using multi-recorded holograms without beam splitters, which results in a simple configuration as compared with that using phase plates instead of holograms. In this study, an experiment is conducted to demonstrate the basic operations for three LP mode groups to confirm the performance of the proposed VHDM and to estimate the signal-to-crosstalk noise ratio (SNR). As a result, an SNR of greater than 20 dB is obtained.

© 2013 OSA

OCIS Codes
(050.7330) Diffraction and gratings : Volume gratings
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(090.2890) Holography : Holographic optical elements
(060.1155) Fiber optics and optical communications : All-optical networks

ToC Category:
Holography

History
Original Manuscript: February 4, 2013
Revised Manuscript: April 11, 2013
Manuscript Accepted: May 3, 2013
Published: May 17, 2013

Citation
Yuta Wakayama, Atsushi Okamoto, Kento Kawabata, Akihisa Tomita, and Kunihiro Sato, "Mode demultiplexer using angularly multiplexed volume holograms," Opt. Express 21, 12920-12933 (2013)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-21-10-12920


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