  Bandwidth measurements are conducted on a 1.4 m long spiral polymer multimode
waveguide for a SMF and 50/125 um MMF launch and for different input offsets.
The waveguide exhibits a bandwidth of at least 30 GHz for all input types,
yielding a bandwidth-length product of at least 42 GHzxm, while no impact is
observed on the waveguide performance due to the different spatial input
offsets. The results indicate that data transmission at data rates even higher
than 25 Gb/s can be achieved over such structures, thereby demonstrating the
potential of multimode polymer waveguide technologies in short-reach
board-level datacommunication links.
