This TSB reviews some techniques and technologies that can be applied to address high-rate transmission for multimode fiber systems. These techniques include serial and multiplexed transmission, dispersion compensation, and forward error correction technologies. Multi-level coding is examined as an alternative to the commonly used binary code.

Possible key specifications for two advanced laser-optimized 50/125-μm multimode fibers, one with higher modal bandwidth and another with wider wavelength spectrum relative to the specifications in TIA-492AAAC, appear in Annex B as examples of what can be respectively achieved to enhance the performance of systems using higher channel rates and wavelength division multiplexing techniques.