FTLC1157RGPL Finisar Compatible 100G QSFP28 CWDM4 2km Transceiver

EdgeOptic's FTLC1157RGPL compatible is a Finisar-coded CWDM4 QSFP28 version of the EdgeOptic 100G-QSFP28-2.1 multi-vendor 100G CWDM4 2km transceiver. Finisar (now Coherent Corp) published the OEM module as a 103 Gbps 100GE CWDM4 QSFP28 on the 4-channel CWDM grid, sold as a general-purpose optic for system integrators and data center hosts that require the FTLC1157RGPL ordering reference for sparing or bill-of-materials alignment.

The module runs four CWDM channels on the 1271, 1291, 1311, and 1331 nm wavelength plan defined by the CWDM4 MSA and ITU-T G.694.2, with NRZ modulation across each lane. Output uses a duplex LC connector and supports 2 km links over G.652 single-mode fibre. The optical front end uses DML DFB transmitters and PIN receivers, with host-side FEC supported per the CWDM4 MSA Technical Specification. Digital diagnostics report TX power, RX power, bias current, supply voltage, and temperature per SFF-8636.

The FTLC1157RGPL covers 100 Gigabit Ethernet at 103.125 Gbps as a general-purpose CWDM4 MSA optic for 100GBASE-CWDM4 host ports. The EdgeOptic 100G-QSFP28-2.1 family additionally supports OTU4 (112 Gbps) and 4x32G Fibre Channel (112.2 Gbps) variants for OTN transport and SAN deployments. Those rates ship as separate part numbers, so for OTU4 or Fibre Channel coding contact our sales team.

FTLC1157RGPL is a Finisar ordering code within the broader FTLC1157 CWDM4 2km QSFP28 product line. Because Finisar supplies optical components to multiple network equipment vendors, this part number circulates through OEM bills of materials and spares channels rather than locking to a single chassis family. Engineers ordering against the FTLC1157RGPL reference are typically building or maintaining 100GBASE-CWDM4 hosts that accept any CWDM4 MSA compliant QSFP28.

Finisar lists additional ordering codes alongside FTLC1157RGPL: FTLC1157RGPL2 and FTLC1157RGPL2-1Y are sibling variants in the same CWDM4 2km QSFP28 product line, each mapped to a different qualification tier in Finisar's naming convention. The variants are not always interchangeable on a given host because the suffix selects a specific qualification record. Match the exact ordering code on the host bill of materials when commissioning a replacement.

The module is QSFP28 MSA SFF-8665 compliant, aligned with the CWDM4 MSA Technical Specification, and RoHS-6 compliant. DOM/DDM reporting follows SFF-8636 for monitoring TX power, RX power, bias current, supply voltage, and temperature during commissioning and ongoing link operation.

Backed by 15+ years of EdgeOptic compatibility engineering across vendor optical platforms. Ships next business day from EU stock with a lifetime warranty.