Coherent Demonstrates QSFP28 and SFP28 Transceivers without FEC at ECOC 2015

Coherent is demonstrating versions of its 100GE QSFP28 SR4 and 25GE SFP28 SR transceivers interoperating without Forward Error Correction (FEC). These transceivers support links up to 30m on OM3 and 40m on OM4 fiber. Ordinarily, FEC is required by the IEEE standard to ensure that 25GE SR4 optical links are closed and error-free. However, FEC increases latency and there are many applications where turning off FEC is required to decrease latency or reduce power consumption on the host board. The superior optical performance of these transceivers eliminates the need for FEC.