100G QSFP28 SR BiDi Optical Transceiver – 850nm LC MMF

SVNK 100G QSFP28 BiDi Optical Transceiver (Duplex LC, MMF)

The SVNK 100G QSFP28 BiDi Optical Transceiver is a high-performance optical module designed for short-range duplex data communication and high-density interconnect applications. It enables 100 Gb/s Ethernet transmission over a standard duplex LC multimode fiber, significantly reducing fiber count while maintaining high bandwidth and excellent signal integrity.

The transceiver integrates four 25.78125 Gb/s electrical lanes in each direction, compliant with the 100GE XLPPI interface. Internally, the module multiplexes the 4 × 25G electrical signals into two 50G electrical channels, which are then transmitted and received optically over two simplex LC fibers using bidirectional (BiDi) optical technology. This advanced architecture delivers an aggregate throughput of 100 Gb/s over a single duplex LC cable.

The optical engine incorporates integrated 850 nm and 910 nm VCSEL transmitters and high-sensitivity photodiode receivers, enabling stable, low-error transmission over multimode fiber links up to 100 meters. Precision optical alignment and advanced signal conditioning ensure excellent eye performance, low jitter, and consistent operation in dense data center environments.

Housed in a compact, hot-pluggable QSFP28 form factor, the module is optimized for power efficiency, thermal stability, and interoperability across modern switching and server platforms.

Key Features

• Hot-pluggable QSFP28 form factor
• Supports 100 Gb/s aggregate data rate
• Power dissipation < 4 W
• Commercial operating case temperature: 0°C to 70°C
• Single 3.3 V power supply
• Maximum link length up to 100 m over multimode fiber (MMF)
• Aligned with IEEE 802.3 BiDi duplex channel specifications
• Integrated 850 nm / 910 nm VCSEL transmitter and PD receiver arrays
• Duplex LC optical receptacles
• I²C management interface
• Built-in Digital Optical Monitoring (DOM/DDM)
• RoHS compliant