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Proceedings Paper

Minimising crosstalk in microchannel free-space optical interconnects with the presence of higher order modes
Author(s): Feng-Chuan F. Tsai; Christopher J. O’Brien; Aleksandar D. Rakić
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Paper Abstract

We investigate the combined effect of the diffraction-caused crosstalk noise (DCCN) and the stray-light crosstalk noise (SLCN) on the performance of FSOI system. A numerical simulator was employed in this study to investigate OI channel design. We determine that there exists an optimal focal length, which maximises the signal-to-noise ratio (SNR) by minimising the combined effects of DCCN and SLCN. For the fundamental mode, the optimal focal length is approximately 750 &mgr;m for both LG01 and LG10 modes, the optimal focal length occurs between f = 650 &mgr;m and f = 700 &mgr;m, depending on the interconnection distance and array pitch.

Paper Details

Date Published: 9 February 2007
PDF: 8 pages
Proc. SPIE 6478, Photonics Packaging, Integration, and Interconnects VII, 64780B (9 February 2007); doi: 10.1117/12.699804
Show Author Affiliations
Feng-Chuan F. Tsai, The Univ. of Queensland (Australia)
Christopher J. O’Brien, The Univ. of Queensland (Australia)
Aleksandar D. Rakić, The Univ. of Queensland (Australia)

Published in SPIE Proceedings Vol. 6478:
Photonics Packaging, Integration, and Interconnects VII
Allen M. Earman; Ray T. Chen, Editor(s)

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