True Forward Error Correction (FEC) testing – As FEC performance is critical for system performance in the post-400G era, a variety of MultiLane BERTs are now supporting REAL Hardware FEC measurements.

MultiLane has compiled an educational report with a primary focus on how Forward Error Correction schemes help enable 100G-per-lambda transceiver designs. This paper aims to be an educational resource for those who want to understand the critical role FEC plays in closing error-prone optical links, along with an overview of the Real FEC measurement capabilities possible with MultiLane BERTs.