4 March 2015 High-speed VCSELs and VCSEL arrays for single- and multi-core fiber interconnects
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Abstract
Our recent work on high speed 850 nm VCSELs and VCSEL arrays is reviewed. With a modulation bandwidth approaching 30 GHz, our VCSELs have enabled transmitters and links operating at data rates in excess of 70 Gbps (at IBM) and transmission over onboard polymer waveguides at 40 Gbps (at University of Cambridge). VCSELs with an integrated mode filter for single mode emission have enabled transmission at 25 Gbps over >1 km of multimode fiber and a speed-distance product of 40 Gbps·km. Dense VCSEL arrays for multicore fiber interconnects have demonstrated 240 Gbps aggregate capacity with excellent uniformity and low crosstalk between the 40 Gbps channels.
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Anders Larsson, Petter Westbergh, Johan S. Gustavsson, Erik Haglund, Emanuel P. Haglund, "High-speed VCSELs and VCSEL arrays for single- and multi-core fiber interconnects", Proc. SPIE 9381, Vertical-Cavity Surface-Emitting Lasers XIX, 93810D (4 March 2015); doi: 10.1117/12.2082614; https://doi.org/10.1117/12.2082614
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