Pluggable optical transceivers with Shortwave Wavelength Division Multiplexing (“SWDM”) technology address this market need. Shortwave wavelength division multiplexing (SWDM) is a cost-effective means of transmitting multiple channels on one duplex multimode fiber pair. [See below for the technical details]
TAKE ME TO FINISAR'S 40GE SWDM4 QSFP+ OPTICAL TRANSCEIVERS
TAKE ME TO FINISAR'S 100G 100m QSFP28 SWDM4 OPTICAL TRANSCEIVERS
Finisar's SWDM4 transceivers enable the transmission of 40G (4x10G) and 100G (4x25G) over existing duplex multimode fiber. This means that data centers can upgrade their optical links to 40G and 100G leveraging their existing fiber infrastructure and still using the same familiar LC connectors instead of changing to MPO patch cords.
For new data center builds, SWDM4 requires 2 fibers like 40G/100G SR4. This significantly increases the bandwidth density per OM3/OM4 fiber and decreases the cost of new trunks/strutured cabling infrastructure, while still using cost-effective multimode transceivers. For larger data-centers, the new OM5 wideband multimode fiber can extend the reach of the SWDM4 optics, since it allows wavelengths up to 953nm to propagate further. For either existing ot new data centers using 40G/100G Ethernet, SWDM4 is a perfect solution to decrease infrastructure cost, and/or to increase link performance. Compared to proprietary "BiDi" technologies, SWDM4 supports longer link lengths and simplifies network monitoring.
Increasing Bandwidth Density in New Data Center Builds
In addition to the “brownfield” application already described, enterprise users who deploy 40G and 100G SWDM4 interfaces instead of parallel optics in their new data centers will require two fiber strands per full-duplex link instead of eight. This architecture significantly decreases the CapEx required for new trunk/structured cabling infrastructure, while still enabling the use of cost-effective multimode optical transceivers.
Supported Reaches for Data Center Upgrades and New Builds
40G SWDM4 QSFP+ transceivers can support up to 300m on OM3; 400m on OM4 legacy multimode fiber; and 500m on OM5 multimode fiber.
100G SWDM4 QSFP28 transceivers can support up to 100m on OM3 and 150m on OM4 legacy multimode fiber; and 180m on OM5 multimode fiber.
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