FTLC1157RGPL2-1Y Finisar 100G CWDM4 2KM Gen2 SMF QSFP28 Transceiver

FTLC1157RGPL2-1Y Overview

The is a 100G QSFP28 CWDM4 optical transceiver designed for medium-range data transmission over single-mode fiber. It operates using four CWDM wavelengths around 1310nm, allowing 100Gbps throughput over a duplex LC fiber pair.With a reach of up to 2 km, this module is widely used in data center interconnects, enterprise backbones, and spine-leaf architectures where longer distance than SR4 is required but without the cost of LR4 optics.It uses 4×25Gbps electrical lanes internally, multiplexed into optical signals via CWDM technology, and requires host-side FEC (Forward Error Correction) for optimal performance.