The QSFP28 100G SWDM4 is a high-performance optical module designed for modern data centers and enterprise networks.
QSFP28 (Quad Small Form-factor Pluggable 28) refers to a compact, hot-swappable transceiver form factor that supports data rates of up to 100Gbps.
SWDM4 (Short Wavelength Division Multiplexing 4) is the core technology of this module. It enables the transmission of four separate wavelengths—850nm, 880nm, 910nm, and 940nm—over a single multimode fiber, effectively increasing bandwidth utilization and fiber efficiency.
The module uses MUX/DMUX components to handle signal multiplexing and demultiplexing:
At the transmitter, a MUX combines four wavelengths into one multimode fiber.
At the receiver, a DMUX separates the combined signal back into four distinct channels.
Each channel independently transmits data at 25Gbps, totaling 100Gbps. When used with OM-class multimode fibers:
OM3 supports up to ~70 meters
OM4 extends to ~100 meters
OM5 enables up to 150 meters
This setup is ideal for short- to medium-range high-speed connections in dense environments.
By utilizing four separate wavelengths over a single fiber, SWDM4 enables 100Gbps transmission—ideal for bandwidth-intensive applications like cloud computing, data analytics, and HPC.
Supports various multimode fiber types to adapt to different deployment needs—from short interconnects to longer campus networks.
The module works seamlessly with existing multimode fiber infrastructure, eliminating the need for costly re-cabling. It also ensures interoperability across different vendors’ networking devices.
Compared to traditional 100G solutions, SWDM4 significantly reduces fiber usage, installation complexity, and total cost of ownership. With its affordable pricing and strong performance, it's ideal for scalable, high-speed network upgrades.
Headquarter address :Room 1603, Coolpad Building B, North District of Science and Technology Park, Nanshan District, Shenzhen,China.518057
