18 January 2006 Novel array geometries for free-space optical interconnects with improved signal-to-noise ratio
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Abstract
We investigate the effect of transmitter and receiver array configurations on the stray-light and diffraction-caused crosstalk in free-space optical interconnects. The optical system simulation software (Code V) is used to simulate both the stray-light and diffraction-caused crosstalk. Experimentally measured, spectrally-resolved, near-field images of VCSEL higher order modes were used as extended sources in our simulation model. Our results show that by changing the square lattice geometry to a hexagonal configuration, we obtain the reduction in the stray-light crosstalk of up to 9 dB and an overall signal-to-noise ratio improvement of 3 dB.
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Feng-Chuan F. Tsai, Feng-Chuan F. Tsai, Christopher J. O'Brien, Christopher J. O'Brien, Novak S Petrovic, Novak S Petrovic, Aleksandar D. Rakic, Aleksandar D. Rakic, } "Novel array geometries for free-space optical interconnects with improved signal-to-noise ratio", Proc. SPIE 6038, Photonics: Design, Technology, and Packaging II, 60381P (18 January 2006); doi: 10.1117/12.638450; https://doi.org/10.1117/12.638450
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