Reachoptics’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 center wavelength of 1296 nm, 1300nm, 1305nm and 1309 nm. 

The optical signals are multiplexed to a single –mode fiber through an industry standard LC connector. In the receive side, the four lanes of optical data streams are optically de-multiplexed 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.

• Compliant with 100GBASE-LR4
• Support line rates from 103.125 Gb/s to 111.81 Gb/s
• Integrated LAN WDM TOSA / ROSA for up to 10 km reach over SMF
• CAUI(10x10G) Electrical Interface and 4-lane 25.78Gb/s optical interface
• Duplex LC optical receptacle
• Support Digital Diagnostic Monitoring interface
• No external reference clock
• RoHS-6 compliant and lead-free
• Compliant with QSFP28 MSA with LC connector
• Single +3.3V power supply
• Maximum power consumption 3.5W
• All-metal housing for superior EMI performance
• Case operating temperature Commercial: 0 ~ +70C

• Data Center 
• Local Area Network (LAN) 
• Ethernet switches and router applications