100Gb/s QSFP28 LR4 Transceiver

Product Description

Cloudtron 100G QSFP28 LR4 optical Transceiver integrates receiver and transmitter path on one module. In the transmit side, four lanes of serial data streams are recovered, retimed, and passed to four laser drivers. 

The laser drivers control 4- Distributed Feedback Laser (DFB) with centre wavelength of 1296 nm, 1300nm, 1305nm and 1309 nm. The optical signals are multiplexed to a single –mode fibre through an industry standard LC connector. In the receive side, the four lanes of optical data streams are optically demultiplexed by the integrated optical de-multiplexer. Each data stream is recovered by a PIN photo-detector and trans-impedance amplifier, retimed. This module features a hot-pluggable electrical interface, low power consumption and MDIO management interface. 

The product is designed with form factor, optical/electrical connection and digital diagnostic interface according to the QSFP28 Multi-Source Agreement (MSA) and compliant to IEEE 802.3bm. 

Product Features

  •  Compliant with 100GBASE-LR4 
  • Support line rates from 103.125 Gbps to 111.81 Gbps 
  • Integrated LAN WDM TOSA / ROSA for up to 10 km reach over SMF 
  • Digital Diagnostics Monitoring Interface 
  • Duplex LC optical receptacle 
  • No external reference clocks 
  • Electrically hot-pluggable 
  • Compliant with QSFP28 MSA with LC connector 
  • Case operating temperature range: 0°C to 70°C 
  • Power dissipation < 3.5 W 


  • 100G Ethernet &100GBASE-LR4 
  • ITU-T OTU4 


  • Compliant to IEEE 802.3ba, IEEE 802.3bm and 100G LR4 
  • Compliant to SFF-8636