Vertical-cavity surface-emitting lasers and multi-mode fibers is the dominating technology for short-reach optical interconnects in datacenters and high performance computing systems at current serial rates of up to 25-28 Gbit/s. This is likely to continue at 50-56 Gbit/s. The technology shows potential for 100 Gbit/s.
Anders Larsson, Johan S. Gustavsson, Petter Westbergh, Erik Haglund, Emanuel P. Haglund, Ewa Simpanen, Tamas Lengyel, Krzysztof Szczerba, and Magnus Karlsson, "VCSEL design and integration for high-capacity optical interconnects," Proc. SPIE 10109, Optical Interconnects XVII, 101090M (Presented at SPIE OPTO: January 31, 2017; Published: 20 February 2017); https://doi.org/10.1117/12.2249319.
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