28-Gbps interconnect based on a plastic optical engine providing reduced modal dispersion

摘要

A plastic optical engine that reduces modal dispersion was proposed and implemented for a 28-Gbps interconnect; its dependence on the angular distribution of the focused beam for a transmitter was examined. The beam coupler was designed using two focused beam numerical apertures (FNAs) for transmitter. The modal dispersion of the smaller FNA was superior to the larger FNA by 6.2 ps at the backshell temperature of 75 degrees C for a 150-m OM3 fiber. The manufactured optical engine with smaller FNA supported effective fiber bandwidth for error-free data transmission over a 150-m-long OM3 fiber at 28 Gbps. Decreasing the FNA suppresses modal dispersion, thus enabling the use of longer OM3 fibers.