9 February 2007 Minimising crosstalk in microchannel free-space optical interconnects with the presence of higher order modes
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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.
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Feng-Chuan F. Tsai, Feng-Chuan F. Tsai, Christopher J. O’Brien, Christopher J. O’Brien, Aleksandar D. Rakić, Aleksandar D. Rakić, } "Minimising crosstalk in microchannel free-space optical interconnects with the presence of higher order modes", Proc. SPIE 6478, Photonics Packaging, Integration, and Interconnects VII, 64780B (9 February 2007); doi: 10.1117/12.699804; https://doi.org/10.1117/12.699804
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