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VI Systems demonstrates record VCSEL transmission

850nm laser transmits 54Gbps over 2.2km of multimode fibre

VI Systems has demonstrated a transmission data rate of 54 Gbit/s over 2.2km with its latest generation of 850nm VCSELs. The record transmission was achieved using multimode OM4 fibre. The standard graded index fibre is specified with 50/125µm. 

According to the company, the new VCSEL design features a narrow optical spectrum at a high optical output power, which has been developed using computer simulation software which the company implemented to advance the performance of its laser products.

The transmission experiment is based on a conventional non-return-to-zero (NRZ) modulation format. This so called on-off keying (OOK) modulation scheme favors low latency performance in communication networks compared to more complex higher order modulation.

Details of the experiment are published in the latest issue of the Electronics Letters publication of the Institution of Engineering and Technology (IET) with the title '54 Gbps OOK transmission using single mode VCSEL up to 2.2 km MMF'. 

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